JP2014236395A - Imaging device, client device, imaging system, imaging device control method, client device control method, and imaging system control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging device capable of appropriately changing resolution set to a compression encoding unit that compress-encoding a captured image, according to an image processing unit rotating the captured image.SOLUTION: An imaging device comprises: a compression encoding unit 1006 that compress-encodes a captured image rotated by an image processing unit 1005 at either a first resolution or a second resolution; a storage unit 1002 that associates and stores the first and second resolutions with angles that correspond to the respective first and second resolutions and by that the image processing unit 1005 rotates the captured image; and a control unit 1001 that controls the image processing unit 1005 to rotate the captured image outputted by an imaging unit 1004 by an angle received by a communication unit 1007, and controls a compression-encoding unit 1006 to compression-encode the captured image rotated by the image processing unit 1005 at the resolution stored by the storage unit 1004 associated with the angle received by the communication unit 1005.

Description

  The present invention relates to an imaging apparatus, a client apparatus, an imaging system, an imaging apparatus control method, a client apparatus control method, and an imaging system control method capable of rotating and compressing and encoding an image captured by an imaging unit. About.

  When a monitoring imaging device such as a network camera is installed, it is often installed in a posture that is not necessarily an upright posture. Here, the upper and lower sides of the captured image output from the monitoring imaging device when the monitoring imaging device is installed in the inverted posture are output from the monitoring imaging device when the monitoring imaging device is installed in the upright posture. It will be the opposite of the top and bottom of the captured image.

  The following implementations are known as implementations for matching the top and bottom of both captured images. In other words, the captured image output from the image sensor such as a CMOS sensor is temporarily stored, and the readout method of the stored captured image is changed according to the attitude of the monitoring imaging device, so that the captured image is turned upside down. This is an implementation.

  Patent Document 1 discloses an image pickup apparatus that can be installed upright and upside down, and in which an image is always displayed in an upright state on a monitor by reversing the image reading direction during the upside down. Is disclosed.

  Conventionally, the following command group has been implemented in an imaging apparatus that transmits a captured image to an external device. That is, a command for instructing the setting change of the imaging apparatus from an external device, a command for instructing the start of delivery of a captured image from the external device, and the like.

Recently, as an example of such a command group, one defined by a standard formulated by ONVIF (Open Network Video Interface Forum) is known. (Non-Patent Document 1)
The defined command group includes a SetVideoSourceConfiguration command as a command for instructing the imaging apparatus from the external device to rotate the captured image input from the imaging unit to the compression encoding unit.

  Further, the defined command group includes a command for instructing the imaging apparatus from the external device to transmit the option of the resolution of the captured image output from the compression encoding unit to the external device. This command is a GetVideoEncoderConfigurationOptions command.

JP 2008-205796 A

ONVIF Specification (http://www.ovnif.org/specs/DocMap.html)

  Here, FIG. 5A shows the surveillance camera installed in the upright posture, and FIGS. 5B and 5D show the surveillance camera installed in the rollover posture. As shown in FIGS. 5B and 5D, when rotating a captured image input from the imaging unit to the compression encoding unit, the compression encoding unit to which the rotated captured image is input. It is also necessary to change the resolution of the captured image output from.

  That is, as shown in FIG. 5A, the aspect ratio of the captured image output from the surveillance camera installed in the upright posture is “4: 3”.

  When the surveillance camera is installed in a rollover posture as shown in FIG. 5B, the captured image input from the imaging unit to the compression encoding unit is rotated by “90 degrees” and rotated. It is necessary to set the aspect ratio of the image to “3: 4”. This is to make the gravity direction of the subject imaged by the monitoring camera coincide with the gravity direction of the user viewing the captured image output from the monitoring camera.

  However, during this rotation, inconsistency may occur between the resolution of the rotated captured image and the resolution of the captured image output by the compression encoding unit.

  In addition, if the captured image input from the imaging unit to the compression encoding unit is rotated, the choice of resolution of the captured image output from the compression encoding unit is valid until this rotation, After this rotation, it could become ineffective. For this reason, the resolution of the captured image output from the compression encoding unit of the imaging apparatus may not be set correctly from the external device.

  The present invention has been made in view of the above points, and provides the following imaging device, client device, imaging system, imaging device control method, client device control method, and imaging system control method Is something that can be done. That is, even if the captured image output from the imaging unit that captures the image of the subject is rotated, there is a difference between the resolution of the rotated captured image and the resolution of the captured image output from the compression encoding unit. It is possible to prevent the occurrence of matching.

  In order to achieve the above object, an imaging apparatus according to the present invention includes an imaging unit that captures an image of a subject formed by an imaging optical system and outputs a captured image, and a captured image output from the imaging unit. An image rotation unit that rotates around the center of the captured image, an angle reception unit that receives an angle indicating an angle at which the captured image is rotated by the image rotation unit, and a captured image rotated by the image rotation unit. Compression encoding means for compressing and encoding at one of the first and second resolutions, storage control means for storing the first and second resolutions in a storage unit, and an angle received by the angle receiving means. And a control unit that controls the image rotation unit and the compression encoding unit, wherein the storage control unit includes the first and second resolutions and the first resolution. And an angle corresponding to each of the second resolution and the angle by which the image rotation unit rotates the captured image, and stores them in the storage unit, and the control unit captures the captured image output from the imaging unit The image rotation unit is controlled to rotate the image by the angle received by the angle reception unit, and the captured image rotated by the rotation unit is associated with the angle received by the angle reception unit. The compression encoding unit is controlled to perform compression encoding at a resolution stored in the storage unit.

  In order to achieve the above object, the client device of the present invention captures an image of a subject imaged by an imaging optical system and outputs a captured image, and a captured image output from the imaging unit. An image rotation unit that rotates around the center of the captured image, and a compression encoding unit that compresses and encodes the captured image rotated by the image rotation unit at one of the first and second resolutions. A client device connected to the imaging device via a network, the designation means for allowing the user to designate an angle for rotating the captured image by the image rotation unit; and a rotation command for the image rotation unit, the imaging device A transmitter that transmits a rotation command for rotating the image output from the unit by an angle designated by the designation means to the imaging device via the network. And means for receiving the first and second resolutions from the imaging device via the network, and storage control means for storing the resolution received by the receiving means in a storage unit, The means receives the angles corresponding to the first and second resolutions together with the first and second resolutions, and the storage control means receives the first and second received by the receiving means. And the storage unit in association with angles corresponding to each of the first and second resolutions, and the transmission means, together with the rotation command, is a resolution command for the compression coding unit, In order to compression-encode the captured image rotated by the image rotation unit at the resolution stored in the storage unit in association with the angle specified by the specifying unit And transmitting the resolution instruction.

  In order to achieve the above object, an imaging system of the present invention is an imaging system including an imaging device and a client device connected to the imaging device via a network, and the imaging device includes an imaging optical system. An image pickup means for picking up an image of a subject imaged by the image pickup device and outputting a picked-up image; an image rotation means for rotating the picked-up image output from the image pickup means around the center of the picked-up image; and the image rotation means Compression encoding means for compressing and encoding the captured image rotated by one of the first and second resolutions, and the client device sets an angle for rotating the captured image by the image rotating means. A designation means for causing the user to designate, and a rotation command for the image rotation means, wherein the image output from the imaging means is designated by the designation means. Transmitting means for transmitting a rotation command for rotating by an angle to the imaging apparatus via the network; and receiving means for receiving the first and second resolutions from the imaging apparatus via the network; Storage control means for storing the resolution received by the receiving means in the storage unit, the receiving means corresponding to each of the first and second resolutions together with the first and second resolutions. And the storage control means associates the first and second resolutions received by the reception means with the angles corresponding to the first and second resolutions in the storage unit. The transmission means is a resolution instruction for the compression encoding means together with the rotation instruction, and is associated with the angle designated by the designation means. Is and transmits the resolution instructions for compression coding the captured image is rotated by the image rotating means stored resolution in the storage unit.

In order to achieve the above object, the imaging apparatus control method of the present invention outputs an image of a subject imaged by an imaging optical system and outputs a captured image, and is output in the imaging step. An image rotation step for rotating the captured image around the center of the captured image, a reception step for receiving an angle indicating an angle for rotating the captured image in the image rotation step, and a rotation step in the image rotation step. A compression encoding step for compressing and encoding the captured image with either the first or second resolution, a storage control step for storing the first and second resolutions in a storage unit, and a reception step. A control step for controlling the image rotation step and the compression encoding step according to the received angle;
The storage control step is an angle corresponding to each of the first and second resolutions and the first and second resolutions, and is performed in the image rotation step. The rotation angle of the captured image is stored in association with the storage unit, and the control step rotates the image so that the captured image output in the imaging step is rotated by the angle received in the reception step. Controlling the steps, and compressing and encoding the captured image rotated in the image rotation step with the resolution stored in the storage unit in association with the angle received in the reception step The compression encoding step is controlled.

  In order to achieve the above object, the client device control method according to the present invention includes: an imaging unit that captures an image of a subject formed by an imaging optical system and outputs a captured image; An image rotation unit that rotates the captured image around the center of the captured image, and a compression encoding unit that compresses and encodes the captured image rotated by the image rotation unit at one of the first and second resolutions; A method of controlling a client apparatus connected to an imaging apparatus including a storage unit and having a storage unit, wherein the image rotation unit causes the user to specify an angle for rotating the captured image, and the image rotation A rotation command for rotating the image output from the imaging unit by an angle specified in the specifying step; Transmitting to the imaging device via a network, receiving the first and second resolutions from the imaging device via the network, and the resolution received in the receiving step A storage control step for storing in a storage unit, wherein the reception step receives, together with the first and second resolutions, angles corresponding to the first and second resolutions, and the storage control step. Is stored in the storage unit in association with the first and second resolutions received in the reception step and angles corresponding to the first and second resolutions, and the transmission step includes A rotation command and a resolution command for the compression encoding unit, which are stored in the storage unit in association with the angle specified in the specifying step. And transmitting the resolution in the resolution instructions for compression coding the captured image is rotated by the image rotating unit.

In order to achieve the above object, an imaging system control method of the present invention is an imaging system control method including an imaging device and a client device connected to the imaging device via a network, An imaging step of capturing an image of a subject imaged by the imaging optical system and outputting the captured image in the apparatus; and an image for rotating the captured image output in the imaging step around the center of the captured image A rotation step, a compression encoding step for compressing and encoding the captured image rotated in the image rotation step at one of the first and second resolutions, and the image rotation step in the client device. A designation step for allowing the user to designate an angle for rotating the captured image, and a rotation command for the image rotation step, the imaging step A transmission step of transmitting a rotation command for rotating the image output at the angle designated in the designation step to the imaging device via the network, and the first and second resolutions, A reception step for receiving from the imaging device via the network; and a storage control step for storing the resolution received in the reception step in the storage unit, wherein the reception step includes the first and second steps. And an angle corresponding to each of the first and second resolutions, and the storage control step receives the first and second resolutions received in the reception step and the first and second resolutions. 2 is stored in the storage unit in association with an angle corresponding to each of the two resolutions,
The transmission step is a resolution command for the compression encoding step together with the rotation command, and is transmitted to the image rotation step with the resolution stored in the storage unit in association with the angle specified in the specifying step. A resolution command for compressing and encoding the captured image rotated in this manner is transmitted.

  According to the imaging device of the present invention, it is possible to provide the following imaging device, client device, imaging system, imaging device control method, client device control method, and imaging system control method. That is, even if the captured image output from the imaging unit that captures the image of the subject is rotated, there is a difference between the resolution of the rotated captured image and the resolution of the captured image output from the compression encoding unit. It is possible to prevent the occurrence of matching.

It is a system configuration diagram for explaining the configuration of an imaging system in the first and second embodiments of the present invention. It is a block diagram which shows each internal structure of a surveillance camera and a client apparatus in the 1st and 2nd Example of this invention. It is a figure for demonstrating the structure of the parameter which a surveillance camera hold | maintains in the 1st and 2nd Example of this invention. It is the figure which showed the resolution table in the 1st and 2nd Example of this invention. It is a figure for demonstrating the relationship between the installation direction of a surveillance camera and the value of Rotate in the 1st and 2nd Example of this invention. It is a sequence diagram for demonstrating the command sequence of a surveillance camera and a client apparatus in the 1st and 2nd Example of this invention. It is a flowchart which shows the SetVideoSourceConfiguration command reception process in the 1st and 2nd Example of this invention. It is a flowchart which shows the GetVideoEncoderConfigurationOptions command reception process in the 1st Example of this invention. It is a flowchart which shows the SetVideoEncoderConfiguration command reception process of the surveillance camera in the 1st and 2nd Example of this invention. It is a flowchart which shows the delivery image setting screen display process in 1st Example of this invention. It is a display example of the delivery image setting screen in the 1st and 2nd Example of this invention. 7 shows a resolution table in the second embodiment of the present invention. It is a flowchart which shows the GetVideoEncoderConfigurationOptions command reception process in the 2nd Example of this invention. It is a flowchart which shows the delivery image setting screen display process in 2nd Example of this invention. It is another example of a display of a delivery image setting screen in the 2nd example of the present invention. FIG. 16 is a flowchart showing a display process of a distribution image setting screen shown in FIG. 15 in the second embodiment of the present invention. FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a system configuration diagram for explaining an imaging system including a monitoring camera 1000 as an imaging device and a client device 2000 as an external device in the first embodiment of the present invention. . Here, the monitoring camera 1000 and the client device 2000 are connected to each other via an IP network 1500 configured by a LAN or the like so that they can communicate with each other.

  The client apparatus 2000 in FIG. 1 transmits to the monitoring camera 1000 a command for instructing to change an imaging parameter, which will be described later, and a command for instructing the start of streaming of moving images, sounds, and the like. On the other hand, the monitoring camera 1000 transmits responses to these commands to the client device, and starts streaming of moving images and sounds to the client device 2000.

  Next, FIG. 2 is a block diagram illustrating internal configurations of the monitoring camera 1000 and the client device 2000 in the present embodiment. Here, FIG. 2A is a block diagram showing an internal configuration of the monitoring camera 1000. As shown in FIG. FIG. 2B is a block diagram showing the internal configuration of the client apparatus 2000.

  The control unit 1001 in FIG. 2A is configured by a CPU or the like. In addition, the control unit 1001 comprehensively controls each component of the monitoring camera 1000. The storage unit 1002 is mainly used as a storage region for various data such as a program storage region executed by the control unit 1001, a work region during program execution, and a storage region for image data generated by the imaging unit 1004 described later. Is done.

  The distribution image memory 1003 is a storage area for temporarily storing image data compression-encoded by a compression encoding unit 1006 described later. The imaging unit 1004 converts an analog signal acquired by capturing an image of a subject formed by an imaging optical system (not shown) of the monitoring camera 1000 into a digital signal, and outputs the digital signal to the storage unit 1002 as a captured image. .

  The image processing unit 1005 rotates the captured image output by the imaging unit 1004 in accordance with a Rotate value described later, and inputs the rotated captured image to the compression encoding unit 1006. For example, the image processing unit 1005 in this embodiment corresponds to an image rotation unit that rotates the captured image output from the imaging unit 1004 around the center of the captured image.

  The compression encoding unit 1006 applies JPEG or H.264 to the captured image output from the image processing unit 1005. Compression encoding processing is performed using a compression encoding method such as H.264. Next, the compression encoding unit 1006 outputs the captured image subjected to such compression encoding processing to the storage unit 1002 and the distribution image memory 1003.

  The communication unit 1007 is used for exchanging data with the client device 2000. For example, the communication unit 1007 receives a command from the client device 2000 via the IP network 1500 and outputs the received command to the control unit 1001. In addition, the communication unit 1007 transmits the response output from the control unit 1001 to the client device 2000 via the IP network 1500.

  The control unit 2001 in FIG. 2B is configured by a CPU or the like. Further, the control unit 2001 comprehensively controls each component of the client device 2000. Next, the storage unit 2002 is mainly used as a storage region for various data such as a program storage region executed by the control unit 2001 and a work region during program execution.

  The display unit 2003 is configured by, for example, an LCD, an organic EL display, or the like. The display unit 2003 displays information for the user of the client device 2000. Specifically, the display unit 2003 displays various setting screens including a distribution image setting screen to be described later, a viewer for moving images streamed from the monitoring camera 1000, various messages, and the like.

  The input unit 2004 includes, for example, a button, a cross key, a touch panel, a mouse, and the like. In addition, the input unit 2004 notifies the control unit 2001 of the contents of the screen operation by the user. Next, the decoding unit 2005 applies JPEG or H.264 to the image data output from the communication unit 2006. Decoding processing is performed in a compression encoding format such as H.264 and the like and expanded in the storage unit 2002.

  A communication unit 2006 is used for data exchange with the monitoring camera 1000. For example, the communication unit 2006 transmits a command to the monitoring camera 1000 via the IP network 1500. The communication unit 2006 receives a response from the monitoring camera 1000 via the IP network 1500 and outputs the received response to the control unit 2001. The communication unit 2006 receives streaming such as moving images and audio from the monitoring camera 1000.

  Note that the monitoring camera 1000 and the client device 2000 in the present embodiment are not limited to the configuration shown in FIG. For example, the monitoring camera 1000 and the client device 2000 may be provided with a voice input unit and a voice output unit. The surveillance camera 1000 may be provided with a pan / tilt mechanism that rotates the imaging unit 1004 in the pan direction and the tilt direction.

  Next, FIG. 3 is a diagram for explaining the structure of parameters held by the monitoring camera 1000 in the present embodiment. MediaProfile 3000, 3001, and 3002 in FIG. 3 are parameter sets for associating various setting items of the monitoring camera 1000. These MediaProfiles 3000, 3001, and 3002 are stored in the storage unit 1002.

  Each of the MediaProfiles 3000, 3001, and 3002 holds a ProfileToken that is an identifier of the MediaProfile.

  Here, in this example, the ProfileToken of MediaProfile 3000 is “Profile1”. Also, the ProfileToken of MediaProfile 3001 is “Profile2”. The ProfileToken of the MediaProfile 3002 is “Profile3”.

  Each of the MediaProfiles 3000, 3001, and 3002 is associated with a video source configuration (hereinafter abbreviated as VSC). Further, each of the MediaProfiles 3000, 3001, and 3002 is associated with VideoEncoderConfiguration (hereinafter abbreviated as VEC).

  Note that MediaProfile 3000, 3001, and 3002 in this embodiment are also associated with various setting items other than VSC and VEC.

  The VideoSource 3001 is a set of parameters indicating the performance of the imaging unit 1004 included in the monitoring camera 1000. The video source 3001 includes a video source token and a resolution. Here, VideoSourceToken is an identifier of VideoSource3001. Resolution indicates the resolution of a captured image (image data) that can be output by the imaging unit 1004.

  The VSC 3010 is a collection of parameters for associating the video source 3001 included in the surveillance camera 1000 with each of the MediaProfiles 3000, 3001, and 3002. Here, the VSC 3010 includes a VideoSourceToken that is an identifier of the VideoSource 3001.

  Further, the VSC 3010 holds a Rotate for designating an angle for rotating the image data clockwise when inputting the image data output from the imaging unit 1004 to the compression encoding unit 1006.

  Each of the VECs 3020, 3021, and 3022 is a set of parameters for associating the settings of the compression encoding unit 1006 related to compression encoding of image data with each of the MediaProfiles 3000, 3001, and 3002.

  As shown in FIG. 3, MediaProfile 3000 is associated with VEC3020. In addition, MediaProfile 3001 is associated with VEC3021. In addition, MediaProfile 3002 is associated with VEC3022.

  Each of the VECs 3020, 3021, and 3022 includes an ID that is an identifier of the VEC, a Type for specifying a compression encoding method, a Resolution for specifying the resolution of a captured image output from the compression encoding unit 1006, including.

  Note that each of the VECs 3020, 3021, and 3022 in the present embodiment may further include a quality for specifying the compression encoding quality and a framerate limit for specifying the maximum frame rate of the output image. Each of the VECs 3020, 3021, and 3022 may further include BitrateLimit for specifying the maximum bit rate.

  Here, the behavior of the monitoring camera 1000 using the MediaProfile 3000 will be described. The imaging unit 1004 and the image processing unit 1005 output a captured image according to the contents of the VideoSource 3001 and the VSC 3010 associated with the MediaProfile 3000.

  Next, the compression encoding unit 1006 compresses and encodes the output captured image in accordance with the content of the VEC 3020 associated with the MediaProfile 3000. Then, the compression-encoded captured image is distributed to the client apparatus 2000 via the communication unit 1007.

  Next, FIG. 4 is a diagram showing a resolution table stored in the storage unit 1002 in the present embodiment. The resolution table shown in FIG. 4 stores a plurality of Rotate values and encoder resolutions associated with each of the plurality of Rotate values. Here, the encoder resolution indicates the resolution of the captured image output from the compression encoding unit 1006.

  Specifically, the resolution table shown in FIG. 4 includes “0 degrees”, “90 degrees”, “180 degrees”, and “270 degrees” as VSC Rotate values that can be specified for the monitoring camera 1000. Are stored.

  The resolution table shown in FIG. 4 includes “400 × 240” and “1280 × 720” as VEC Resolution options that can be specified when the Rotate value is “0 degrees” and “180 degrees”. And “1920 × 1080” are stored.

  Furthermore, the resolution table shown in FIG. 4 includes “240 × 400” and “720 × 1280” as VEC Resolution options that can be specified when the Rotate value is “90 degrees” and “180 degrees”. And “1080 × 1920” are stored.

  Therefore, the storage unit 1002 in this embodiment corresponds to a storage unit that stores a plurality of resolutions and angles corresponding to the plurality of resolutions in association with each other.

  Next, FIG. 5 is a diagram for explaining the relationship among the installation direction of the monitoring camera 1000, the captured image, the setting value of the VSC Rotate, and the input image to the compression encoding unit 1006.

  FIG. 5A illustrates a case where the monitoring camera 1000 is installed in the upright direction. In this case, the gravity direction of the subject imaged by the imaging unit 1004 matches the gravity direction of the user. For this reason, the client apparatus 2000 does not need to change the Rotate value of the monitoring camera 1000 from “0 degrees”.

  FIG. 5C illustrates a case where the monitoring camera 1000 is set in the inverted direction. In this case, the gravity direction of the subject imaged by the imaging unit 1004 is opposite to the user's gravity direction. For this reason, the client device 2000 should set the Rotate value of the monitoring camera 1000 to “180 degrees” so that the gravity direction of the subject imaged by the imaging unit 1004 matches the gravity direction of the user.

  Here, an image in which the gravitational direction of the subject imaged by the imaging unit 1004 and the user's gravitational direction are matched by this setting is shown as “image input to the compression encoding unit” in FIG. It was.

  In this embodiment, the client device 2000 is configured to set the Rotate value of the monitoring camera 1000 to “180 degrees”, but the present invention is not limited to this. For example, the monitoring camera 1000 may be configured to automatically set the Rotate value to “180 degrees” by providing the monitoring camera 1000 with a mechanism for automatically detecting gravity.

  FIG. 5B illustrates a case where the monitoring camera 1000 is set in the rollover direction. In this case, the gravity direction of the subject imaged by the imaging unit 1004 rolls counterclockwise with respect to the gravity direction of the user. Therefore, the client device 2000 should set the Rotate value of the monitoring camera 1000 to “90 degrees” so that the gravity direction of the subject imaged by the imaging unit 1004 matches the gravity direction of the user.

  Here, an image in which the gravitational direction of the subject imaged by the imaging unit 1004 and the user's gravitational direction are matched by this setting is shown as “image input to the compression encoding unit” in FIG. It was.

  In the present embodiment, the client apparatus 2000 is configured to set the Rotate value of the monitoring camera 1000 to “90 degrees”, but the present invention is not limited to this. For example, the monitoring camera 1000 itself may be configured to automatically set the Rotate value to “90 degrees” by providing the monitoring camera 1000 with a mechanism for automatically detecting gravity.

  FIG. 5D illustrates a case where the monitoring camera 1000 is set in the rollover direction. In this case, the gravity direction of the subject imaged by the imaging unit 1004 rolls clockwise with respect to the user's gravity direction. For this reason, the client device 2000 should set the Rotate value of the monitoring camera 1000 to “270 degrees” so that the gravity direction of the subject imaged by the imaging unit 1004 matches the gravity direction of the user.

  Here, an image in which the gravity direction of the subject imaged by the imaging unit 1004 and the gravity direction of the user are matched with this setting is shown as “image input to the compression encoding unit” in FIG. It was.

  In this embodiment, the client apparatus 2000 is configured to set the Rotate value of the monitoring camera 1000 to “270 degrees”, but the present invention is not limited to this. For example, a mechanism for automatically detecting gravity may be provided in the monitoring camera 1000 so that the monitoring camera 1000 itself automatically sets the Rotate value to “270 degrees”.

  5B and 5D, the aspect ratio of the captured image output from the imaging unit 1004 and the aspect ratio of the captured image input to the compression encoding unit 1006 are different.

  Next, FIG. 6 is a sequence diagram for explaining a typical command sequence when setting parameters of a distribution image in the monitoring camera 1000 and the client device 2000.

  6000 in FIG. 6 is a device search transaction. The client apparatus 2000 transmits a Probe command including a search condition by multicast to search for a monitoring camera connected to the network. Among the monitoring cameras that have received the Probe command, those that match the search condition return the ProbeMatch command to the source of the Probe command, and the search is completed.

  Reference numeral 6001 denotes a function acquisition transaction. The client device 2000 transmits a Get Services command to the monitoring camera 1000 that has returned ProbeMatch in order to acquire the functions supported by the monitoring camera 1000.

  The monitoring camera 1000 that has received this GetServices command returns a GetServices response and provides the client device 2000 with a list of functions that it supports.

  Reference numeral 6002 denotes an event registration transaction. The client device 2000 transmits a Subscribe request to the monitoring camera 1000 in order to notify the monitoring camera 1000 of an event trigger that has occurred in the monitoring camera 1000.

  When there is no problem in the contents of the Subscribe request, the monitoring camera 1000 that has received the Subscribe request returns a Subscribe response together with the Subscribe ID to the client device 2000.

  Reference numeral 6003 denotes a GetProfiles transaction. The client device 2000 transmits a GetProfiles command to the monitoring camera 1000. Then, the monitoring camera 1000 that has received the GetProfiles command transmits a list of MediaProfile held by the monitoring camera 1000 to the client device 2000.

  The MediaProfile list includes the contents of the VSC and VEC associated with each MediaProfile included in the list.

  Reference numeral 6004 denotes a GetStreamUri transaction. The client device 2000 transmits a GetStreamUri command to the monitoring camera 1000. The transmitted GetStreamUri command includes a profile token of MediaProfile.

  Upon receiving this command, the monitoring camera 1000 returns a StreamURI for starting streaming to the client device 2000 according to the contents of the MediaProfile identified by ProfileToken included in this command.

  Reference numeral 6005 denotes a transaction of the RTSP Describe command. The client device 2000 transmits a Describe command to the monitoring camera 1000. The transmitted Describe command includes a StreamURI. Upon receiving this command, the monitoring camera 1000 returns information on streaming content corresponding to the StreamURI included in this command to the client device 2000.

  Reference numeral 6006 denotes an RTSP Setup command transaction. The client apparatus 2000 transmits a Setup command to the monitoring camera 1000. Upon receiving this command, the monitoring camera 1000 transmits information on the streaming transmission method to the client device 200.

  Reference numeral 6007 denotes an RTSP Play command transaction. The client apparatus 2000 transmits a Play command to the monitoring camera 1000. Upon receiving this command, the monitoring camera 1000 starts streaming to the client device 2000.

  Reference numeral 6008 denotes RTP streaming. The monitoring camera 1000 streams the content shared with the client device 2000 in 6005 to the client device 2000 by the transmission method shared with the client device 2000 in 6006. This streaming is continuously performed until reception of the 6015 RTSP teardown command, disconnection of the network, or the like.

  Reference numeral 6009 denotes a transaction of a GetVideoSourceConfigurationOptions command (hereinafter abbreviated as GetVSOptions command). The client apparatus 2000 transmits a GetVOptions command to the monitoring camera 1000.

  Receiving this command, the monitoring camera 1000 transmits a response to the GetVSOptions command to the client device 2000. This response includes options for each parameter that can be specified by a SetVideoSourceConfiguration command (hereinafter abbreviated as “SetVSC command”).

  For example, in the present embodiment, the response of the GetVSCOptions command includes “0 degrees”, “90 degrees”, “180 degrees”, and “270 degrees” as Rotate options.

  Reference numeral 6010 denotes a transaction of a GetVideoEncoderConfigurationOptions command (hereinafter abbreviated as GetVEOptions command). The client apparatus 2000 transmits a GetVEOptions command to the monitoring camera 1000.

  Upon receiving this command, the monitoring camera 1000 transmits a response to the GetVEOptions command to the client device 2000. This response includes options for each parameter that can be specified by a SetVideoEncoderConfiguration command (hereinafter abbreviated as “SetVEC command”).

  For example, in this embodiment, the response to the GetVEOptions command includes the following Resolution options when the current Rotate value of the monitoring camera 1000 is “90 degrees”. That is, “240 × 400”, “720 × 1280”, and “1080 × 1920”.

  Reference numeral 6011 denotes a SetVSC command transaction. The client apparatus 2000 transmits a SetVSC command to the monitoring camera 1000. The monitoring camera 1000 that has received this command updates the VSC held by the monitoring camera 1000 in accordance with the received command.

  Specifically, first, the client apparatus 2000 transmits a SetVSC command to the monitoring camera 1000. The value of Rotate of this SetVSC command is any one item of the Rotate options included in the response of the GetVSCOOptions command 6009.

  Next, the monitoring camera 1000 updates the VSC Rotate value held by the monitoring camera 1000 with the Rotate value included in the SetVSC command received from the client apparatus 2000.

  Note that the SetVSC command in this embodiment corresponds to a rotation command for rotating the captured image output from the imaging unit 1004 to the image processing unit 1005 by the set Rotate value. In addition, the communication unit 1007 in this embodiment serves as an angle receiving unit that receives a SetVSC command including a Rotate.

  Reference numerals 6012 and 6014 denote setting change events for notifying that the setting of the monitoring camera 1000 has been changed. The monitoring camera 1000 transmits, as a setting change event, an event indicating that the contents of the VSC or VEC have been changed to the client device 2000 registered with the Subscribe command such as 6002.

  Reference numeral 6013 denotes a SetVEC command transaction. The client apparatus 2000 transmits a SetVEC command to the monitoring camera 1000. The monitoring camera 1000 that has received this command updates the VEC held by the monitoring camera 1000 in accordance with the received command.

  Specifically, first, the client apparatus 2000 transmits a SetVEC command to the monitoring camera 1000. The value of Resolution of the SetVEC command is any one item of the Resolution options included in the response of the GetVEOptions command 6010.

  Next, the monitoring camera 1000 updates the VEC Resolution value held by the monitoring camera 1000 with the Resolution value included in the SetVEC command received from the client device 2000.

  Therefore, the SetVEC command in this embodiment is a resolution command for the compression encoding unit 1006, and is a resolution command for compressing and encoding the captured image rotated by the image processing unit 1005 with the Resolution included in this command. It corresponds to.

  FIG. 7 is a flowchart showing the SetVSC command reception process. This process is started by the control unit 1001 when the monitoring camera 1000 receives the Set VSC command transmitted from the client device 2000 in the transaction 6011 shown in FIG.

  Specifically, the control unit 1001 determines whether a SetVSC command has been received from the client device 2000. If the control unit 1001 determines that the Set VSC command has been received from the client device 2000, the control unit 1001 starts the processing illustrated in FIG. On the other hand, when the control unit 1001 determines that the Set VSC command has not been received from the client device 2000, the control unit 1001 does not start the processing illustrated in FIG.

  In step S7001 in FIG. 7, the control unit 1001 determines whether or not the value of Rotate has been changed using the SetVSC command received from the client apparatus 2000.

  Specifically, first, the control unit 1001 reads out from the storage unit 1002 a VSC having the same Token value and Token value included in the received Set VSC command. Next, the control unit 1001 determines whether or not the Rotate value included in the received SetVSC command matches the Rotate value included in the read VSC.

  If the control unit 1001 determines that the Rotate value included in the received Set VSC command does not match the Rotate value included in the read VSC, the control unit 1001 determines as follows, The processing proceeds to S7002. That is, it is determined that the value of Rotate has been changed.

  On the other hand, if the control unit 1001 determines that the Rotate value included in the received Set VSC command matches the Rotate value included in the read VSC, the control unit 1001 determines as follows. The processing proceeds to S7006. That is, it is determined that the Rotate value has not been changed.

  In step S <b> 7002, the control unit 1001 determines whether a moving image, audio, or the like is being streamed from the monitoring camera 1000.

  Next, when the control unit 1001 determines that a moving image, audio, or the like is being streamed from the monitoring camera 1000, the control unit 1001 first stops the streaming. This is to prepare for the subsequent VSC setting change process.

  After this stop, the control unit 1001 updates the Rotate value included in the VSC read in step S7001 with the Rotate value included in the SetVSC command used in step S7001.

  On the other hand, when the control unit 1001 determines that no moving image or audio is streamed from the monitoring camera 1000, the control unit 1001 performs the following update process without performing the process for stopping the streaming.

  That is, this is a process of updating the Rotate value included in the VSC read in step S7001 with the Rotate value included in the SetVSC command used in S7001.

  In step S7003, the control unit 1001 determines whether a MediaProfile associated with the same VSC having the same Token value and Token value included in the Set VSC command used in step S7001 is stored in the storage unit 1002.

  If the control unit 1001 determines that this MediaProfile is stored in the storage unit 1002, the control unit 1001 advances the process to step S7004. On the other hand, if the control unit 1001 determines that this MediaProfile is not stored in the storage unit 1002, the control unit 1001 advances the process to step S7006.

  In step S7004, the encoder resolution associated with the Rotate value included in the SetVSC command used in step S7001 is read from the resolution table stored in the storage unit 1002.

  For example, in this embodiment, when the Rotate value included in the SetVSC command used in step S7001 is 270 degrees, the control unit 1001 sets “240 × 400” as the encoder resolution corresponding to “WQVGA resolution”. read out. In this case, the control unit 1001 reads “720 × 1280” as the encoder resolution corresponding to “HD resolution” and reads “1080 × 1920” as the encoder resolution corresponding to “FullHD resolution”.

  In step S7005, the control unit 1001 performs an encoder update process on all the MediaProfiles associated with the VSC read in step S7001 to the VECs associated with the respective MediaProfiles. More specifically, the control unit 1001 updates the resolution of the VEC associated with each of these MediaProfiles using the encoder resolution read in step S7004.

  For example, assume that the value of Rotate included in the VSC read in step S7001 is updated from “0 degree” to “270 degrees” in step S7002. In such an assumption, the control unit 1001 updates the value of the Resolution of the VEC whose Resolution value is “400 × 240” with “240 × 400”.

  Note that after this update, the control unit 1001 may restart the streaming stopped in step S7002.

  In step S7006, the control unit 1001 transmits a normal response to the client device 2000.

  FIG. 8 is a flowchart showing the GetVEOptions command reception process. This process is started by the control unit 1001 when the monitoring camera 1000 receives the GetVEOptions command transmitted from the client apparatus 2000 in the transaction 6010 shown in FIG.

  Specifically, the control unit 1001 determines whether a GetVEOptions command has been received from the client device 2000. When the control unit 1001 determines that the GetVEOptions command has been received, the control unit 1001 starts the process illustrated in FIG. On the other hand, when the control unit 1001 determines that the GetVEOptions command has not been received from the client device 2000, the control unit 1001 does not start the processing illustrated in FIG.

  In step S7100 in FIG. 8, the control unit 1001 acquires (reads) the value of Rotate included in the current VSC of the monitoring camera 1000 from the storage unit 1002 using the GetVEOptions command received from the client device 2000.

  For example, it is assumed that ProfileToken is included in the received GetVEOptions command. In such an assumption, the control unit 1001 reads out the MediaProfile having the same ProfileToken value and the same ProfileToken value from the storage unit 1002.

  On the other hand, for example, it is assumed that the received GetVEOptions command includes a VEC ID. In such an assumption, the control unit 1001 reads out the MediaProfile associated with the VEC having the same ID value and ID value from the storage unit 1002.

  Then, the control unit 1001 reads the Rotate value included in the VSC associated with the read MediaProfile from the storage unit 1002 as the Rotate value included in the current VSC of the monitoring camera 1000.

  In step S7101, the control unit 1001 reads all encoder resolutions associated with the Rotate value acquired in step S7100 from the resolution table stored in the storage unit 1002.

  For example, in this embodiment, when the value of Rotate acquired in step S7100 is “90 degrees”, the control unit 1001 uses the following as all encoder resolutions associated with this value: Are read from the resolution table stored in the storage unit 1002. That is, “240 × 400”, “720 × 1280”, and “1080 × 1920”.

  In step S7102, the control unit 1001 creates VEOptions, and stores the created VEOptions in the storage unit 1002. Further, VEOptions stored in the storage unit 1002 includes the encoder resolution read in step S7101 as an option.

  Note that the control unit 1001 in this embodiment serves as a storage control unit that stores information in the storage unit 1002.

  In step S7103, the control unit 1001 transmits the VEOptions created in step S7102 to the client device 2000 as a normal response.

  FIG. 9 is a flowchart showing the SetVEC command reception process. This process is started by the control unit 10001 when the monitoring camera 1000 receives the SetVEC command transmitted from the client apparatus 2000 in the transaction 6013 shown in FIG.

  Specifically, the control unit 1001 determines whether a SetVEC command has been received from the client device 2000. When the control unit 1001 determines that the SetVEC command has been received, the control unit 1001 starts the process illustrated in FIG. On the other hand, when it is determined that the SetVEC command has not been received from the client apparatus 2000, the control unit 1001 does not start the process illustrated in FIG.

  In step S7200 in FIG. 9, the control unit 1001 acquires (reads) the current Rotate value from the storage unit 1002 using the SetVEC command received from the client device 2000. Specifically, first, the control unit 1001 reads, from the storage unit 1002, the MediaProfile associated with the VEC having the same ID value as the VEC ID value included in the received SetVEC command.

  Next, the control unit 1001 reads out from the storage unit 1002 a VSC having the same Token value and Token value included in the read MediaProfile. Then, the control unit 1001 reads the Rotate value included in the read VSC as the current Rotate value.

  In step S7201, the control unit 1001 determines whether the encoder resolution included in the SetVEC command used in step S7200 can be used with the current Rotate value read in step S7200.

  Specifically, the control unit 1001 reads all the encoder resolutions associated with the current Rotate value read in step S7200 from the resolution table stored in the storage unit 1002.

  Next, when the encoder resolution included in the SetVEC command used in step S7200 is included in the read encoder resolution, the control unit 1001 determines as follows.

  That is, it is determined that the encoder resolution included in the SetVEC command used in step S7200 can be used with the current Rotate value read in step S7200. Then, after this determination, the control unit 1001 advances the process to step S7202.

  On the other hand, if the encoder resolution included in the SetVEC command used in step S7200 is not included in the read encoder resolution, the control unit 1001 determines as follows.

  That is, it is determined that the encoder resolution included in the SetVEC command used in step S7200 is not usable with the current Rotate value read in step S7200. Then, after this determination, the control unit 1001 advances the process to step S7210.

  In step S7202, the control unit 1001 updates the output resolution of the VEC stored in the storage unit 1002 in accordance with the SetVEC command used in step S7200.

  Specifically, first, the control unit 1001 reads from the storage unit 1002 a VEC having the same ID value as the VEC ID value included in the SetVEC command used in step S7200. Next, the control unit 1001 updates the resolution of the read VEC with the encoder resolution included in the SetVEC command used in step S7200.

  In step S7203, the control unit 1001 transmits a normal response to the client device.

  In step S7210, the control unit 1001 transmits an error response to the client device.

  Next, FIG. 10 is a flowchart showing the display control processing of the distribution image setting screen in the client device 2000. This distribution image setting screen is used to change the VSC and VEC settings of the monitoring camera 1000. Here, the process shown in FIG. 10 is executed by the control unit 2001. FIG. 11 is a diagram for explaining a display example of the distribution image setting screen, and the screen shown in FIG. 11 is displayed on the display unit 2003.

  In step S7300, control unit 2001 causes display unit 2003 to display a window of distribution image setting screen 8000.

  In step S7301, the control unit 2001 performs the transaction 6003 shown in FIG. 6 and acquires a list of MediaProfiles held by the monitoring camera 1000. Then, the control unit 2001 causes the storage unit 2002 to store the acquired MediaProfile list.

  For example, in this embodiment, the control unit 2001 acquires the list of three MediaProfiles shown in FIG. 3 from the monitoring camera 1000 and stores the acquired three MediaProfiles in the storage unit 2002.

  In step S7302, the control unit 2001 acquires (receives) the streaming 6008 shown in FIG. 6 from the monitoring camera 100 by executing the transactions 6004 to 6007 shown in FIG. Then, the control unit 2001 displays a moving image (live video) corresponding to the streaming 6008 received from the monitoring camera 1000 in the Live View area 8001.

  In step S7303, the control unit 2001 displays a profile tab based on the MediaProfile stored in step S7301.

  For example, in the present embodiment, since the control unit 2001 stores three MediaProfiles in step S7301, the control unit 2001 displays three profile tabs respectively corresponding to these three MediaProfiles as shown in FIG. .

  In step S7304, the control unit 2001 displays the contents of the VSC corresponding to the profile tab 8002 currently selected by the user in the VSC setting area 8003.

  Specifically, first, the control unit 2001 reads out the MediaProfile corresponding to the profile tab currently selected by the user from the storage unit 2002. In FIG. 11, MediaProfile 3000 whose ProfileToken value is “Profile1” is displayed as the profile tab 8002 currently selected by the user.

  Next, the control unit 2001 reads out the VSC associated with the read MediaProfile from the storage unit 2002. Then, the control unit 2001 displays the contents of the read VSC in the VSC setting area 8003.

  For example, in this embodiment, the control unit 2001 displays “0 degrees” in the Rotate setting area 8004 as information corresponding to the value of Rotate included in the read VSC. Along with this display, the control unit 2001 displays a VSC setting button 8005 for updating the contents of the VSC on the display unit.

  In step S7305, the control unit 2001 displays the contents of the VEC corresponding to the profile tab currently selected by the user in the VEC setting area 8010.

  Specifically, first, similarly to step S7304, the control unit 2001 reads MediaProfile corresponding to the profile tab currently selected by the user from the storage unit 2002. Next, the control unit 2001 reads out the VEC associated with the read MediaProfile from the storage unit 2002. Then, the control unit 2001 displays the contents of the read VEC in the VEC setting area 8010.

  For example, in this embodiment, the control unit 2001 displays the Type selection area 8011 in a state where a check button corresponding to the value “H.264” of Type included in the read VEC is checked. In the present embodiment, the control unit 2001 displays “420 × 240” in the Resolution setting area 8012 as information corresponding to the value of Resolution included in the read VEC.

  Along with this display, the control unit 2001 displays a VEC setting button 8013 for updating the contents of the VEC and a “close” button 8020 for closing the screen shown in FIG.

  In step S <b> 7306, the control unit 2001 waits for a screen operation notification from the input unit 2004 by the user and an event notification from the monitoring camera 1000.

  When the control unit 2001 receives an operation notification indicating that the profile tab has been pressed from the operation unit 2003, or when it receives a setting change event indicating a setting change event from the monitoring camera 1000, from the communication unit 2006. The process returns to step S7301. This is for updating the screen shown in FIG.

  If the control unit 2001 receives an operation notification indicating that the drop-down list in the Rotate setting area 8004 has been pressed from the input unit 2004, the control unit 2001 advances the process to step S7307. In addition, if the control unit 2001 receives an operation notification indicating that the VSC setting button 8005 has been pressed from the input unit 2004, the control unit 2001 proceeds to step S7308.

  Furthermore, when the control unit 2001 receives an operation notification indicating that the drop-down list in the Resolution setting area 8012 has been pressed from the input unit 2004, the control unit 2001 advances the process to step S7309. When the control unit 2001 receives an operation notification indicating that the VEC setting button 8013 is pressed from the input unit 2004, the control unit 2001 advances the process to step S7310.

  If the control unit 2001 receives from the input unit 2004 that the “close” button 8020 has been pressed, the control unit 2001 advances the process to step S7311.

  In step S7307, the control unit 2001 receives the response of GetVOptions by executing the transaction 6009 shown in FIG. 6, and displays the drop-down list in the Rotate setting area 8004 shown in FIG.

  Specifically, first, the control unit 2001 transmits a GetVSOptions command to the client device 2000. Next, the control unit 2001 receives a response to the GetVSOptions command from the monitoring camera 1000. Then, the control unit 2001 displays the Rotate options included in the received response as a drop-down list in the Rotate setting area 8004.

  In step S7308, the control unit 2001 executes the transaction 6011 shown in FIG. 6 using the contents of the VSC setting area 8003. Specifically, the control unit 2001 causes the monitoring camera 1000 to transmit a SetVSC command.

  Here, the Token value of the SetVSC command is the same value as the Token of the VSC read in step S7304. The Rotate value of the SetVSC command is a value corresponding to the value selected from the drop-down list in the Rotate setting area 8004.

  In step S7309, the control unit 2001 receives the response of GetVEOptions by executing the transaction 6010 shown in FIG. 6, and displays the drop-down list in the Rotate setting area 8004 shown in FIG.

  Specifically, first, the control unit 2001 transmits a GetVEOptions command to the client device 2000. Next, the control unit 2001 receives a response to the GetVEOptions command from the monitoring camera 1000. Then, the control unit 2001 displays Resolution options included in the received response as options in the Resolution setting area 8012.

  In step S7310, the control unit 2001 uses the contents of the VEC setting area 8010 to execute the transaction 6013 shown in FIG. Specifically, the control unit 2001 causes the monitoring camera 1000 to transmit a SetVEC command.

  Here, the VEC ID value of the SetVEC command is the same value as the VEC ID read in step S7305. The value of Resolution of this SetVEC command is a value corresponding to the value selected from the drop-down list in the Resolution setting area 8012.

  Here, the control unit 2001 performs the following determination. That is, it is a determination as to whether or not a MediaProfile different from the MediaProfile read in step S7304 and associated with the VEC read in step S7305 is stored in the storage unit 2002.

  If the control unit 2001 determines that such a MediaProfile is not stored in the storage unit 2002, the control unit 2001 returns the process to step S7306. On the other hand, when the control unit 2001 determines that such a MediaProfile is stored in the storage unit 2002, the control unit 2001 causes the display unit 2003 to display the following dialog.

  In other words, this is a dialog for notifying the user that pressing the VEC setting button 8013 has an effect on streaming from the monitoring camera 1000 by another MediaProfile.

  In step S7311, the control unit 2001 closes the screen illustrated in FIG. 11 and ends the process illustrated in FIG.

  As described above, when the captured image output from the imaging unit 1004 is rotated, the monitoring camera 1000 according to the present embodiment appropriately sets the resolution of the captured image output from the compression encoding unit 1006 according to the rotation. Can be updated.

  As a result, even if the captured image input from the imaging unit 1004 to the compression encoding unit 1006 is rotated, the resolution of the rotated captured image and the imaging output from the compression encoding unit 1006 set separately. It is possible to prevent inconsistency from occurring in the image resolution.

  In addition, when the captured image output from the imaging unit 1004 is rotated, the monitoring camera 1000 according to the present exemplary embodiment can select the resolution of the captured image output from the appropriate compression encoding unit 1006 according to the rotation. Can be provided to the client device 2000.

  This prevents a situation in which the client device 2000 cannot correctly set the resolution of the captured image output from the compression encoding unit 1006 by rotating the captured image output from the imaging unit 1004. Can do.

  In the first embodiment, the monitoring camera 1000 that appropriately changes the Resolution option included in the response to the GetVEOptions command transmitted to the client apparatus 2000 according to the current Rotate setting value has been described.

  On the other hand, the monitoring camera 1000 of the present embodiment transmits a response to the following GetVEOptions command to the client device 2000. That is, the response includes all Resolution options that can be set in the VEC and the Rotate setting value associated with each of these Resolutions.

  In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

  Next, FIG. 12 is a diagram showing a resolution table stored in the storage unit 1002 in the present embodiment. In the first embodiment, there are only four types of Rotate values that can be set in the monitoring camera 1000, ie, “0 degree”, “90 degrees”, “180 degrees”, and “270 degrees” every 90 degrees. On the other hand, the monitoring camera 1000 according to the second embodiment can set the Rotate value in units of 1 degree from “0 degree” to “359 degree”.

  The resolution table shown in FIG. 12 stores a plurality of Rotate value ranges. Furthermore, in the resolution table shown in FIG. 12, the encoder resolution is stored in association with each of a plurality of stored ranges.

  In the resolution table illustrated in FIG. 12, “0 to 44 degrees”, “45 to 134 degrees”, and “135 to 224 degrees” are included as ranges of five types of Rotate values that can be specified for the monitoring camera 1000. , “225 to 314 degrees” and “315 to 359 degrees” are stored.

  In addition, the resolution table shown in FIG. 12 includes VEC Resolution options that can be specified when the Rotate value ranges from “0 to 44 degrees”, “135 to 224 degrees”, and “315 to 359 degrees”. The following values are stored: That is, “400 × 240”, “1280 × 720”, and “1920 × 1080”.

  Furthermore, the resolution table shown in FIG. 12 stores the following values as VEC Resolution options that can be specified when the Rotate value range is “45 to 134 degrees” and “225 to 314 degrees”. Has been. That is, “240 × 400”, “720 × 1280”, and “1080 × 1920”.

  Next, FIG. 13 is a flowchart showing the GetVEOptions command reception process. This process is started by the control unit 1001 when the monitoring camera 1000 receives the GetVEOptions command transmitted from the client apparatus 2000 in the transaction 6010 shown in FIG.

  Specifically, the control unit 1001 determines whether a GetVEOptions command has been received from the client device 2000. When the control unit 1001 determines that the GetVEOptions command has been received, the control unit 1001 starts the process illustrated in FIG. On the other hand, when the control unit 1001 determines that the GetVEOptions command has not been received from the client device 2000, the control unit 1001 does not start the processing illustrated in FIG.

  In step S10000 in FIG. 13, the control unit 1001 reads out all the encoder resolutions from the resolution table stored in the storage unit 1002, regardless of the value of Rotate.

  For example, in this embodiment, the control unit 1001 reads out all six types of encoder resolutions from the resolution table stored in the storage unit 1002. Here, the six types of encoder resolutions are “400 × 240”, “1280 × 720”, “1920 × 1080”, “240 × 400”, “720 × 1280”, and “1080 × 1920”.

  In step S10001, the control unit 1001 creates VEOptions based on the resolution table shown in FIG. Specifically, first, the control unit 1001 creates VEOptions and stores it in the storage unit 1002. Then, the control unit 1001 selects one encoder resolution from all the encoder resolutions read in step S10000.

  Next, the control unit 1001 executes the following reading process. That is, this is a process of reading all Rotate values stored in association with one encoder resolution selected by the control unit 1001 from the resolution table shown in FIG.

  Subsequently, the control unit 1001 executes the following description process. That is, this is a process in which one encoder resolution selected by the control unit 1001 and all Rotate values read in this reading process are described in association with VEOptions stored in the storage unit 1002.

  Furthermore, the control unit 1001 executes the following end determination process. Specifically, in this end determination process, first, the control unit 1001 determines whether or not all the encoder resolutions read in step S10000 have been selected. Next, when the control unit 1001 determines that all the encoder resolutions read in step S10000 have been selected, the control unit 1001 advances the process to step S10002.

  On the other hand, if the control unit 1001 determines that not all the encoder resolutions read in step S10000 have been selected, the control unit 1001 sets a new encoder resolution to 1 among all the encoder resolutions read in step S10000. Select one. Next, after this selection, the control unit 1001 executes again the reading process, the description process, and the end determination process in step S10001.

  For example, in this embodiment, the control unit 1001 adds the encoder resolution value “400 × 240”, the Rotate values “0 to 44 degrees”, “135 to 224 degrees” and VEOptions stored in the storage unit 1002. “315 to 359 degrees” is described in association with each other.

  In step S10002, the control unit 1001 transmits the VEOptions stored in the storage unit 1002 in step S10001 to the client device 2000 as a normal response.

  Next, FIG. 14 is a flowchart showing the display control processing of the distribution image setting screen in the client apparatus 2000. This distribution image setting screen is used to change the VSC and VEC settings of the monitoring camera 1000. Here, the process shown in FIG. 14 is executed by the control unit 2001.

  Steps S7300 to S7305 in FIG. 14 are the same as steps S7300 to S7305 in FIG.

  In step S10100, the control unit 2001 acquires (receives) the Rotate option of the monitoring camera 1000 by executing the transaction 6009 shown in FIG.

  Specifically, first, the control unit 2001 transmits a GetVSCOtions command to the monitoring camera 1000. Next, the control unit 2001 receives a response to the GetVSOptions command from the monitoring camera 1000.

  Then, the control unit 2001 causes the storage unit 2002 to store the Rotate option included in the received response. For example, in the present embodiment, the control unit 2001 sets “0 to 44 degrees”, “45 to 134 degrees”, “135 to 224 degrees”, “225 to 314 degrees”, and “315 to 359 degrees” to Rotate. It is stored in the storage unit 2002 as an option.

  In step S <b> 10101, the control unit 2001 acquires (receives) all the options of the resolution of the monitoring camera 1000 by executing the transaction 6010 illustrated in FIG. 6. Specifically, first, the control unit 2001 transmits a GetVEOptions command to the monitoring camera 1000. Next, the control unit 2001 receives a response to the GetVEOptions command from the monitoring camera 1000.

  Then, the control unit 2001 stores the received response in the storage unit 2002.

  Step S7306 is the same as step S7306 in FIG.

  In step S10102, the control unit 2001 displays the Rotate options included in the response stored in the storage unit 1002 in step S10100 as a drop-down list in the Rotate setting area 8004.

  Since step S7308 is the same as step S7308 in FIG. 10, the description thereof is omitted.

  In step S10103, the control unit 2001 displays the Resolution options included in the response stored in the storage unit 2002 in step S10101 as a drop-down list in the resolution setting area 8012.

  Specifically, first, the control unit 2001 reads out the MediaProfile corresponding to the profile tab currently selected by the user from the storage unit 2002. Next, the control unit 2001 acquires the value of the VSC Rotate associated with the read MediaProfile.

  Then, the control unit 2001 reads only the Resolution described in association with the acquired Rotate value in the response stored in step S10101. Subsequently, the control unit 2001 displays the read Resolution as an option in the drop-down list in the Resolution setting area 8012.

  Step S7310 is the same as step S7310 in FIG. Step S7311 is the same as step S7311 in FIG.

  Next, FIG. 15 is another display example of the distribution image setting screen used for changing the VSC and VEC settings of the monitoring camera 1000 in this embodiment. FIG. 16 is a flowchart showing display control processing of another display example of the distribution image setting screen in the client device. The screen shown in FIG. 15 is displayed on the display unit 2003, and the process shown in FIG. 16 is executed by the control unit 2001.

  Steps S7300 to S7303 in FIG. 16 are the same as steps S7300 to S7303 in FIG.

  Step S10100 is the same as step S10100 in FIG. Step S10101 is the same as step S10101 in FIG.

  In step S11000, the control unit 2001 displays the Rotate resolution setting table 8102 based on the Rotate option stored in step S10100 and the response stored in step S10101.

  This Rotate resolution setting table 8102 is displayed in the VSC / VEC setting area 8100 and displays a range of Rotate values and Resolution values that can be set for the monitoring camera 1000 in a list. It is.

  Specifically, the Rotate resolution setting table 8102 displays a plurality of Rotate value ranges that can be set for the monitoring camera 1000. In the Rotate resolution setting table 8102, Resolution described in association with each of the plurality of displayed Rotate value ranges in the response stored in step S10101 is also displayed.

  The displayed Resolution can also be set for the monitoring camera 1000.

  In step S11001, the control unit 2001 displays the contents of the VSC and VEC corresponding to the profile tab currently selected by the user in the VSC / VEC setting area 8100.

  Here, the VSC / VEC setting area 8100 includes the Rotate resolution setting table 8102 described above. The Rotate resolution setting table 8102 includes a Rotate angle input area 8101 to which a Rotate value is input, and a corresponding encoder resolution selection area 8103.

  Specifically, the control unit 2001 reads out a MediaProfile corresponding to the profile tab currently selected by the user from the storage unit 2002. In FIG. 15, the contents of MediaProfile 3000 whose ProfileToken value is “Profile1” are displayed as the profile tab 8002 currently selected by the user.

  Next, the control unit 2001 reads out the VSC associated with the read MediaProfile from the storage unit 2002. Then, the control unit 2001 displays the Rotate value included in the read VSC in the Rotate angle input area 8101.

  In addition, the control unit 2001 reads the value of Resolution included in the VEC associated with the read MediaProfile from the storage unit 2002. Then, the control unit 2001 checks and displays an item corresponding to the read Resolution value among the options in the corresponding encoder resolution selection area 8103.

  In step S11002, the control unit 2001 performs grayout processing (makes selection impossible) items that do not correspond to the Rotate value read in step S11001 among the options in the corresponding encoder resolution selection area 8103.

  Specifically, the control unit 2001 reads, from the storage unit 2002, Resolution options described in association with the Rotate value read in step S11001 in the response received in step S10101. Then, the control unit 2001 displays only items that do not correspond to the read option among the options in the corresponding encoder resolution selection area 8103 so that they cannot be selected.

  In step S11003, the control unit 2001 waits for a screen operation notification from the input unit 2004 by the user and an event notification from the monitoring camera 1000.

  When the control unit 2001 receives an operation notification indicating that the profile tab has been pressed from the input unit 2004 or when a setting change event indicating a setting change event from the monitoring camera 1000 is received from the communication unit 2006. The process returns to step S7301. This is for updating the screen shown in FIG.

  When the control unit 2001 receives an operation notification indicating that a value is input in the Rotate angle input area 8101 from the input unit 2004, the control unit 2001 advances the process to step S11004. Furthermore, if an operation notification indicating that the VSC / VEC setting button 8104 has been pressed is received from the input unit 2004, the process proceeds to step S11005.

  If the control unit 2001 receives from the input unit 2004 that the “close” button 8020 has been pressed, the control unit 2001 advances the process to step S7311.

  In step S11004, the control unit 2001 performs grayout processing on the options in the corresponding encoder resolution selection area 8103 according to the value input in the Rotate angle input area 8101. For example, first, the control unit 2001 performs grayout processing on all options in the corresponding encoder resolution selection area 8103.

  Next, the control unit 2001 reads, from the storage unit 2002, Resolution options described in association with the value input in the Rotate angle input area 8101 in the response received in step S10101. Then, the control unit 2001 displays only the items corresponding to the read options among the options in the corresponding encoder resolution selection area 8103 so that they can be selected.

  In step S11005, the control unit 2001 executes the transaction 6011 shown in FIG. 6 and the transaction 6013 shown in FIG. 6 using the contents set in the VSC / VEC setting area 8100. Specifically, first, the control unit 2001 transmits a SetVSC command to the monitoring camera 1000. The Rotate value of the SetVSC command corresponds to the value input in the Rotate angle input area 8101.

  Next, the control unit 2001 transmits a SetVEC command to the monitoring camera 1000. The value of Resolution of this SetVEC command corresponds to an item selected by the user from the options in the corresponding encoder resolution selection area 8103.

  As described above, the monitoring camera 1000 according to the present exemplary embodiment can transmit a Resolution option and a Rotate value that can be used in each item of the option to the client device 2000.

  Thus, even if the client device 2000 sets the VEC Resolution and the VSC Rotate in the monitoring camera 1000, it is possible to prevent inconsistency between the two.

  Furthermore, the client device 2000 according to the present embodiment can allow the user to grasp the VEC Resolution option of the monitoring camera 1000 and the Rotate value that can be used in each item of this option.

  Thereby, when setting the VEC Resolution and the VSC Rotate in the monitoring camera 1000, the user can prevent inconsistency between the two.

  In the above-described embodiment, the monitoring camera 1000 is configured to hold a single VSC, but the present invention is not limited to this. For example, the monitoring camera 1000 may be configured to hold a plurality of VSCs.

  In the above-described embodiment, the monitoring camera 1000 is configured to hold a resolution table common to two different compression encoding methods (that is, “H.264” and “JPEG”). It is not limited.

  For example, the monitoring camera 1000 is configured to hold a dedicated resolution table (that is, a dedicated resolution table for “H.264” and a dedicated resolution table for “JPEG”) for each of two different compression encoding methods. May be. When configured in this way, the monitoring camera 1000 may be configured to appropriately distinguish these resolution tables according to the current compression encoding setting in VEC.

  The present invention is also realized by executing the following processing. That is, software (program) for realizing the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program. It is a process to be executed.

  The present invention has been described in detail based on the preferred embodiments thereof, but the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included.

1000 surveillance camera 1001 control unit 1002 storage unit 1004 imaging unit 1005 image processing unit 1006 compression encoding unit 1007 communication unit 2000 client device

Claims (6)

Imaging means for capturing an image of a subject imaged by the imaging optical system and outputting the captured image;
Image rotating means for rotating the captured image output from the imaging means around the center of the captured image;
Angle receiving means for receiving an angle indicating an angle at which the captured image is rotated by the image rotating means;
Compression encoding means for compressing and encoding the captured image rotated by the image rotation means at one of the first and second resolutions;
Storage control means for storing the first and second resolutions in a storage unit;
Control means for controlling the image rotation means and the compression encoding means according to the angle received by the angle receiving means;
An imaging device comprising:
The storage control unit stores the first and second resolutions in association with angles corresponding to the first and second resolutions and angles at which the image rotation unit rotates the captured image. Remember
The control unit controls the image rotation unit to rotate the captured image output from the imaging unit by the angle received by the angle reception unit, and the captured image rotated by the rotation unit, An image pickup apparatus, wherein the compression encoding unit is controlled to perform compression encoding at a resolution associated with an angle received by the angle receiving unit and stored in the storage unit. An imaging unit that captures an image of a subject imaged by an imaging optical system and outputs a captured image, an image rotation unit that rotates a captured image output from the imaging unit around the center of the captured image, and the image rotation A client device connected via a network to an imaging device including a compression encoding unit that compresses and encodes the captured image rotated by the unit at one of the first and second resolutions,
Designation means for allowing the user to designate an angle for rotating the captured image by the image rotation unit;
A transmission unit that transmits a rotation command to the image rotation unit, the rotation command for rotating the image output from the imaging unit by an angle designated by the designation unit, to the imaging device via the network. When,
Means for receiving the first and second resolutions from the imaging device via the network;
Storage control means for storing the resolution received by the receiving means in a storage unit;
With
The receiving means receives angles corresponding to the first and second resolutions together with the first and second resolutions,
The storage control unit stores the first and second resolutions received by the reception unit in association with angles corresponding to the first and second resolutions, and stores them in the storage unit.
The transmission means, together with the rotation instruction, is a resolution instruction for the compression encoding unit, and is rotated by the image rotation unit at a resolution stored in the storage unit in association with the angle specified by the specifying unit. A client device that transmits a resolution command for compressing and encoding the captured image. An imaging system including an imaging device and a client device connected to the imaging device via a network,
The imaging device
Imaging means for capturing an image of a subject imaged by the imaging optical system and outputting the captured image;
Image rotating means for rotating the captured image output from the imaging means around the center of the captured image;
Compression encoding means for compressing and encoding the captured image rotated by the image rotation means at one of the first and second resolutions;
With
The client device is
Designation means for allowing the user to designate an angle for rotating the captured image by the image rotation means;
Transmitting means for transmitting to the imaging apparatus via the network a rotation command for rotating the image output from the imaging means by an angle designated by the designation means. When,
Receiving means for receiving the first and second resolutions from the imaging device via the network;
Storage control means for storing the resolution received by the receiving means in the storage unit;
With
The receiving means receives angles corresponding to the first and second resolutions together with the first and second resolutions,
The storage control unit stores the first and second resolutions received by the reception unit in association with angles corresponding to the first and second resolutions, and stores them in the storage unit.
The transmission means is a resolution instruction for the compression encoding means together with the rotation instruction, and is rotated by the image rotation means at a resolution stored in the storage unit in association with an angle designated by the designation means. An imaging system, comprising: transmitting a resolution command for compressing and encoding the captured image that has been made. An imaging step of capturing an image of a subject imaged by the imaging optical system and outputting a captured image;
An image rotation step of rotating the captured image output in the imaging step around the center of the captured image;
A receiving step of receiving an angle indicating an angle of rotating the captured image in the image rotating step;
A compression encoding step for compressing and encoding the captured image rotated in the image rotation step at one of the first and second resolutions;
A storage control step of storing the first and second resolutions in a storage unit;
A control step for controlling the image rotation step and the compression encoding step according to the angle received in the reception step;
A method for controlling an imaging apparatus comprising:
In the storage control step, the first and second resolutions and the angles corresponding to the first and second resolutions and the angles at which the captured image is rotated in the image rotation step are stored in association with each other. To remember
The control step controls the image rotation step so that the captured image output in the imaging step is rotated by the angle received in the reception step, and the imaging rotated in the image rotation step A control method for an imaging apparatus, wherein the compression encoding step is controlled so that an image is compression encoded at a resolution stored in the storage unit in association with the angle received in the reception step. . An imaging unit that captures an image of a subject imaged by an imaging optical system and outputs a captured image, an image rotation unit that rotates a captured image output from the imaging unit around the center of the captured image, and the image rotation A client device having a storage unit connected to an imaging device including a compression encoding unit that compresses and encodes a captured image rotated by the unit with one of the first and second resolutions via a network Control method,
A designation step for causing the user to designate an angle for rotating the captured image by the image rotation unit;
A transmission command for rotating the image rotation unit, the rotation command for rotating the image output from the imaging unit by an angle designated in the designation step, to the imaging device via the network Steps,
Receiving the first and second resolutions from the imaging device via the network;
A storage control step of storing the resolution received in the reception step in the storage unit;
With
The receiving step receives the angle corresponding to each of the first and second resolutions together with the first and second resolutions;
In the storage control step, the first and second resolutions received in the reception step and the angles corresponding to the first and second resolutions are associated with each other and stored in the storage unit,
The transmission step is a resolution command for the compression encoding unit together with the rotation command, and is associated with the angle designated in the designation step and is stored in the storage unit by the image rotation unit. A method for controlling a client device, comprising: transmitting a resolution command for compressing and encoding a rotated captured image. An imaging system control method comprising an imaging device and a client device connected to the imaging device via a network,
In the imaging device,
An imaging step of capturing an image of a subject imaged by the imaging optical system and outputting a captured image;
An image rotation step of rotating the captured image output in the imaging step around the center of the captured image;
A compression encoding step of compressing and encoding the captured image rotated in the image rotation step at one of the first and second resolutions;
In the client device,
A designation step for allowing the user to designate an angle for rotating the captured image in the image rotation step;
A rotation command for the image rotation step, the rotation command for rotating the image output in the imaging step by the angle specified in the specifying step is transmitted to the imaging device via the network. Sending step;
Receiving the first and second resolutions from the imaging device via the network; and
A storage control step of storing the resolution received in the reception step in the storage unit;
With
The receiving step receives the angle corresponding to each of the first and second resolutions together with the first and second resolutions;
In the storage control step, the first and second resolutions received in the reception step and the angles corresponding to the first and second resolutions are associated with each other and stored in the storage unit,
The transmission step is a resolution command for the compression encoding step together with the rotation command, and is transmitted to the image rotation step with the resolution stored in the storage unit in association with the angle specified in the specifying step. And a resolution command for compressing and encoding the rotated captured image.

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