JP2012042805A - Image pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image pickup device capable of increasing the opportunity for taking an image of a moving subject.SOLUTION: An image pickup device of the present invention includes: a first camera to which a lens unit for taking images with any angle of view can be attached; a second camera that has an angle of view wider than that of the lens unit for taking images; a display part that displays the image obtained by the first camera and the image obtained by the second camera; and an image processing part that performs a process for displaying at least a part of the image obtained by the second camera on the display part.

Description

  The present invention relates to an imaging apparatus, and more particularly to an imaging apparatus that captures a moving subject.

  In shooting a subject that is performed using an imaging device such as a camera, for example, when shooting a moving subject with a narrowed angle of view by exchanging a lens for shooting and / or zooming, the image is temporarily displayed. It is generally considered difficult to adjust the shooting direction in order to re-enter a subject out of the corner into the angle of view again.

  Further, in shooting a moving subject, changes such as the distance between the photographer and the subject, the luminance of the subject itself, and the luminance around the subject frequently occur. For this reason, when a moving subject that has once deviated from the angle of view is re-entered within the angle of view, AF (autofocus) focusing and exposure adjustment must be performed again. Are often missed.

  In order to deal with such a problem, for example, Japanese Patent Application Laid-Open No. 2001-201679 discloses a camera having a function of an ambush shooting mode for shooting a subject entering the shooting screen, A device is disclosed that can perform ambush shooting in a composition and range intended by a photographer by changing the size and position of the region.

  However, according to the technique disclosed in Japanese Patent Application Laid-Open No. 2001-201679, the position of the camera is fixed at least from the start of shooting until the subject enters the area set as the subject detection area. It is necessary to keep. Therefore, according to the technique disclosed in Japanese Patent Laid-Open No. 2001-201679, for example, in photographing a subject moving in a random direction, there may be a case where the subject does not enter the region set as the subject detection region. As a result, there arises a problem that the photographing opportunity of the subject may be missed.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an imaging apparatus capable of improving the photographing opportunity of a moving subject.

  The imaging apparatus of the present invention has a wide angle of view compared to the angle of view of the first camera configured to be capable of mounting a lens unit for photographing having an arbitrary angle of view and the lens unit for photographing. A second camera configured, a display unit configured to display an image obtained by the first camera and an image obtained by the second camera, and obtained by the second camera An image processing unit that performs a process of displaying at least a part of the video on the display unit.

  According to the imaging apparatus of the present invention, it is possible to improve the photographing opportunity of a moving subject.

1 is a diagram illustrating a configuration of a main part of an imaging apparatus according to an embodiment of the present invention. 3 is a flowchart showing a flow of processing and the like performed in the imaging apparatus of the present embodiment. The flowchart which shows the flow of the process etc. which are performed following the flowchart of FIG. The figure which shows an example of the positional relationship between the area | region of the image | video image | photographed with the sub camera, the display area of a display part, and the area | region of the image | video image | photographed with the main camera. The figure for demonstrating the area | region used for the process at the time of displaying an image | video by the 1st display mode among the images image | photographed with the sub camera. The figure for demonstrating the area | region used for the process at the time of displaying an image | video by the 2nd display mode among the images | videos image | photographed with the sub camera. The figure for distinguishing and explaining the area | region to which a reduction process or a compression process is performed when displaying an image | video with a 3rd display mode among the images | videos image | photographed with the sub camera, and an area other than that. The figure which shows an example of the display of the information which alert | reports the present position of the mobile body which entered the imaging | photography area of the sub camera outside the imaging | photography area | region of the main camera. The figure for demonstrating the process performed when determining whether the moving body is moving toward the imaging | photography area | region of a main camera.

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

  1 to 9 relate to an embodiment of the present invention.

  As shown in FIG. 1, the imaging device 1, which is a digital camera or the like, includes a main camera 2, a lens unit 3 used for shooting by the main camera 2, a sub camera 4 used for assisting shooting by the main camera 2, have.

  The lens unit 3 is configured to be detachable from the main camera 2. The lens unit 3 includes a lens system 31 designed to have an individual focal length and an angle of view for each lens unit 3, and a nonvolatile memory in which information on the focal length and the angle of view of the lens system 31 is stored. 32. That is, according to the imaging apparatus 1 of the present embodiment, it is possible to perform shooting by mounting the lens unit 3 having an arbitrary angle of view according to the purpose of shooting on the main camera 2.

  The sub camera 4 can be attached to and detached from the main camera 2 and is arranged at a position where the same subject as the main camera 2 can be photographed when the sub camera 4 is attached to the main camera 2. The sub camera 4 includes a lens system 41 designed to have a fixed focal length and an angle of view, and an image sensor 42 that captures an optical image formed by the lens system 41 and outputs a video signal. , And is configured.

  Specifically, the lens system 41 is configured as a single focus lens, and is designed to have a wider angle of view than the lens system 31 of the lens unit 3 that can be attached to the main camera 2.

  On the other hand, the main camera 2 captures an optical image formed by the lens unit 3 and outputs a video signal, and an imaging interface to which the video signals output from the image sensors 21 and 42 are input. Unit 22, a camera control circuit 23 that performs various processes and controls related to imaging of the imaging apparatus 1, and a lens drive circuit 24 that performs AF focusing by driving the lens system 31 according to the control of the camera control circuit 23. And a display unit drive circuit 25 that operates according to the control of the camera control circuit 23, a display unit 26 that displays video according to the operation of the display unit drive circuit 25, and various instructions to the camera control circuit 23. The operation button group 27 is provided. The operation button group 27 of the present embodiment includes a shooting button 27a for instructing execution of shooting of a subject, and activation of a moving body shooting mode suitable for shooting of a moving subject (also referred to as a moving body). A moving body photographing mode button 27b for giving an instruction relating to switching of invalidation, and a display switching button 27c for giving an instruction concerning selection of an image to be displayed in the display area of the display unit 26 when the moving body photographing mode is valid. Are provided at least.

  The camera control circuit 23 includes, for example, an ASIC (Application Specific Integrated Circuit) and the like, and is configured to perform control according to an instruction from the operation button group 27. In addition, the camera control circuit 23 performs detection based on a focus detection by a known method such as a phase difference detection method or a contrast detection method based on a video signal input from the image pickup device 21 via the image pickup interface unit 22. The lens driving circuit 24 is controlled according to the result. Further, the camera control circuit 23 performs exposure adjustment by a known method, for example, by controlling and changing at least one of an aperture amount (not shown) and a shutter speed.

  On the other hand, the camera control circuit 23 includes an image processing unit 231 that processes a video signal input via the imaging interface unit 22.

  The image processing unit 231 includes a moving body detection unit 231a, a display control unit 231b, and an image composition unit 231c.

  The moving body detection unit 231a monitors the change in the contrast of the video signal output from the image sensor 42 at any time when an instruction to validate the moving body shooting mode is given on the moving body shooting mode button 27b, It is detected whether or not there is a moving body within the shooting area of the sub camera 4 (within the angle of view of the lens system 41). In addition, when the moving object detection unit 231a obtains a detection result that a moving object exists in the imaging region of the sub camera 4, the moving object detection unit 231a calculates the motion vector of the moving object in units of frames, thereby The position and moving direction are detected at any time. Furthermore, when the moving object detection unit 231a obtains a detection result that the moving object exists within the imaging area of the sub camera 4 and outside the display area of the display unit 26, the moving object detection unit 231a determines the current position of the moving object. Control for causing the display unit 26 to display information to be notified is performed on the display unit drive circuit 25.

  In the display control unit 231b, information related to the size of the display area of the display unit 26 and information related to the focal length and the angle of view of the lens system 41 are stored in advance.

  The display control unit 231b detects the focal length and the angle of view of the lens system 31 of the lens unit 3 attached to the main camera 2 by reading the information stored in the nonvolatile memory 32. The display control unit 231b then determines the angle of view (focal length) of the lens system 31 and the angle of view of the lens system 41 (focal length) when an instruction to validate the moving body shooting mode is given on the moving body shooting mode button 27b. Based on the focal length, correction processing is performed to match the center position of the image obtained by the image sensor 42 of the sub camera 4 with the center position of the image obtained by the image sensor 21 of the main camera 2. Note that this correction processing is performed according to the parallax caused by the positional relationship related to the arrangement of the main camera 2 and the sub camera 4 and the distance to the subject that has achieved the in-focus state in the main camera 2.

  In addition, the display control unit 231b displays the main camera 2 and the sub camera 4 in a display mode according to the instruction of the display switching button 27c when an instruction to validate the moving body shooting mode is given on the moving body shooting mode button 27b. Control to display video. Details of such control will be described later.

  The image composition unit 231c synthesizes the images of the main camera 2 and the sub camera 4 processed by the display control unit 231b when an instruction to validate the mobile object photographing mode is given on the moving object photographing mode button 27b. The display unit drive circuit 25 is controlled to display the synthesized video on the display unit 26.

  The display unit 26 includes, for example, a liquid crystal monitor, and is configured to be able to display an image obtained by the main camera 2 and an image obtained by the sub camera 4 according to the operation of the display unit drive circuit 25. ing.

  Subsequently, the operation of the present embodiment will be described.

  First, when a power button (not shown) is pressed while the lens unit 3 is attached to the main camera 2, the main camera 2 is turned on (step S1 in FIG. 2). It is detected whether or not the sub camera 4 is attached to the main camera 2 (step S2 in FIG. 2).

  The camera control circuit 23 performs an operation corresponding to a normal shooting mode by the main camera 2 and detects an image obtained by the image sensor 21 until it is detected that the sub camera 4 is attached to the main camera 2. Processing and control for continuously displaying the main camera 2 as a through image on the display unit 26 are performed (step S3 in FIG. 2). Further, when the camera control circuit 23 detects that the sub camera 4 is attached to the main camera 2, the camera control circuit 23 further detects whether or not the moving body shooting mode is enabled in the moving body shooting mode button 27b ( Step S4 in FIG.

  The camera control circuit 23 performs an operation corresponding to the normal shooting mode by the main camera 2 until the moving body shooting mode button 27b detects that the moving body shooting mode is enabled, and the image sensor 21 Processing and control for continuously displaying the obtained video on the display unit 26 as a through image of the main camera 2 are performed (step S3 in FIG. 2). Further, when the camera control circuit 23 detects that the moving body shooting mode is enabled in the moving body shooting mode button 27b, the camera control circuit 23 displays a video to be displayed on the display unit 26 during the moving body shooting mode. After being determined based on the instruction from (Step S5 in FIG. 2), the image processing unit 231 performs processing for displaying the video in the display mode according to the instruction (Step S6 in FIG. 2).

  Here, among the processes performed in step S6 of FIG. 2, the details of the process in the case of displaying an image on the display unit 26 in the first display mode will be described.

  First, the display control unit 231b determines the center position of the image obtained by the imaging device 42 of the sub camera 4 based on the angle of view (focal length) of the lens system 31 and the angle of view (focal length) of the lens system 41. Is corrected to match the center position of the image obtained by the image sensor 21 of the main camera 2.

  Specifically, for example, when the area of the video shot by the sub camera 4 is the area ARS, the display area of the display unit 26 is the area ARD, and the area of the video shot by the main camera 2 is the area AR1. The display control unit 231b performs correction processing so that the positional relationship between these three regions becomes as shown in FIG.

  Further, the display control unit 231b matches the center of the area AR1 with the center of the area ARD, sets the area of the area AR1 as half the area of the area ARD, and sets the display magnification of the image of the area ARS and the image of the area AR1. The matching process is performed together with the correction process described above. Then, by performing such processing, the area AR1 is arranged in the central area of the area ARD. The area AR1 is not limited to being arranged in the central area of the area ARD, and may be arranged in another area inside the area ARD. Further, the area of the area AR1 is not limited to being set as a half area of the area ARD, but may be set as another area less than the area of the area ARD.

  Then, the display control unit 231b performs a process of cutting out only the video outside the area AR1 and inside the area ARD from the video in the area ARS. By this processing, only the image of the region with the lattice pattern in FIG. 5 is cut out from the image of the region ARS.

  On the other hand, the image synthesis unit 231c synthesizes the video of the area AR1 obtained by the main camera 2 and the video of the area ARS cut out by the display control unit 231b, and displays the synthesized video on the display unit 26. Control for displaying in the area ARD is performed on the display unit driving circuit 25.

  As described above, the processing related to the first display mode is performed in the display control unit 231b and the image composition unit 231c, so that in the display area ARD of the display unit 26, the through of the main camera 2 is placed inside the area AR1. An image is displayed, and a through image of the sub camera 4 is displayed around the area AR1.

  Next, of the processes performed in step S6 of FIG. 2, the details of the process in the case of displaying an image on the display unit 26 in the second display mode will be described.

  First, the display control unit 231b determines the center position of the image obtained by the imaging device 42 of the sub camera 4 based on the angle of view (focal length) of the lens system 31 and the angle of view (focal length) of the lens system 41. Is corrected to match the center position of the image obtained by the image sensor 21 of the main camera 2.

  Specifically, for example, when the area of the video shot by the sub camera 4 is the area ARS, the display area of the display unit 26 is the area ARD, and the area of the video shot by the main camera 2 is the area AR1. The display control unit 231b performs correction processing so that the positional relationship between these three regions becomes as shown in FIG.

  In addition, the display control unit 231b performs a process of matching the center of the area AR1 with the center of the area ARD and setting the area of the area AR1 as a half area of the area ARD together with the correction process described above. Then, by performing such processing, the area AR1 is arranged in the central area of the area ARD. The area AR1 is not limited to being arranged in the central area of the area ARD, and may be arranged in another area inside the area ARD. Further, the area of the area AR1 is not limited to being set as a half area of the area ARD, but may be set as another area less than the area of the area ARD.

  Then, the display control unit 231b performs a process of cutting out only the video outside the area AR1 from the video in the area ARS. As a result of this processing, only the image of the region with the hatched pattern in FIG. 6 is cut out from the image of the region ARS.

  Further, the display control unit 231b performs a reduction process or a compression process on the cut image of the area ARS so that the entire image is stored outside the area AR1 and inside the area ARD. Note that the reduction rate in this reduction process is selected or changed according to the angle of view (focal length) of the lens system 31. The compression rate in the above-described compression process is selected or changed according to the angle of view (focal length) of the lens system 31.

  For example, when the angle of view of the lens system 31 is 100 mm (film equivalent) and the angle of view of the lens system 41 is 25 mm, the angle of view of 100 mm is displayed at the center of the screen (inside the area AR1). Is done. That is, since the field angle is 1/4 of 25 mm, the remaining 3/4 may be compressed to 1/3 so as to fit in the periphery of the screen. In such compression processing, compression may be performed linearly by thinning, or nonlinear compression may be performed so as to increase the thinning rate as it goes to the periphery. A wide range can be confirmed by the compression processing as described above.

  In the case of the numerical example described above, by not displaying the outer half of the image of the lens system 41 (sub-camera 4), a peripheral image for a field angle of 50 mm is added around a field angle of 100 mm. You may make it do. In such a case, it is possible to naturally display the movement of the subject on the screen of the display unit 26 as compared with the case where the compression process is performed.

  When the angle of view of the lens system 31 is 50 mm, the image of the lens system 31 (main camera 2) is displayed at the center of the screen of the display unit 26 (inside the area AR1), and is compressed or cut off. An image obtained by removing the central portion of the lens system 41 (sub camera 4) can be displayed on the periphery of the screen of the display unit 26 without performing the above process.

  On the other hand, the image synthesis unit 231c synthesizes the video of the area AR1 obtained by the main camera 2 and the video of the area ARS cut and reduced (or compressed) by the display control unit 231b. Control for displaying the video on the display area ARD of the display unit 26 is performed on the display unit drive circuit 25.

  As described above, the processing related to the second display mode is performed in the display control unit 231b and the image composition unit 231c, so that in the display area ARD of the display unit 26, the through of the main camera 2 is placed inside the area AR1. An image is displayed, and an image obtained by reducing (or compressing) the through image of the sub camera 4 is displayed around the area AR1.

  Note that the processing according to the first and second display modes described above assumes a subject at a long distance, that is, does not consider the parallax (parallax) of the lens system 31 and the lens system 41. . For this reason, the image composition unit 231c may perform image composition in accordance with the values set at the time of manufacture in the processing according to the first or second display mode described above. However, the image composition unit 231c may perform image composition while reflecting a change in parallax according to the distance to the subject.

  Further, details of the process in the case where the video is displayed on the display unit 26 in the third display mode among the processes performed in step S6 of FIG. 2 will be described.

  First, the display control unit 231b determines the center position of the image obtained by the imaging device 42 of the sub camera 4 based on the angle of view (focal length) of the lens system 31 and the angle of view (focal length) of the lens system 41. Is corrected to match the center position of the image obtained by the image sensor 21 of the main camera 2.

  Specifically, for example, when the area of the video shot by the sub camera 4 is the area ARS, the display area of the display unit 26 is the area ARD, and the area of the video shot by the main camera 2 is the area AR1. The display control unit 231b performs correction processing so that the positional relationship between these three regions becomes as shown in FIG.

  Further, the display control unit 231b sets the area AR1 to the center of the area ARD, sets the area of the area AR1 as a half area of the area ARD, and generates a frame having a size according to the setting result. Is performed together with the correction processing described above. Then, by performing such processing, a frame indicating the area AR1 is arranged in the central area of the area ARD. Note that the frame indicating the area AR1 is not limited to being arranged in the central area of the area ARD, and may be arranged in another area inside the area ARD. Further, the area of the frame indicating the region AR1 is not limited to be set as a half area of the region ARD, and may be set as another area less than the area of the region ARD.

  Then, the display control unit 231b passes through the image inside the area AR1, which is the image of the area with the horizontal stripe pattern in FIG. 7 in the image of the area ARS, and also displays the area with the vertical stripe pattern in FIG. Reduction processing or compression processing is performed so that the entire video outside the area AR1 that is a video is stored inside the area ARD. Note that the reduction rate in this reduction process is selected or changed according to the angle of view (focal length) of the lens system 31. The compression rate in the above-described compression process is selected or changed according to the angle of view (focal length) of the lens system 31.

  On the other hand, the image composition unit 231c includes a frame (for example, a frame shown as a dotted line surrounding a region with a horizontal stripe pattern in FIG. 7) generated by the display control unit 231b and a part of the display control unit 231b. The display unit drive circuit 25 is controlled to combine the reduced (or compressed) image of the area ARS and display the combined image on the display area ARD of the display unit 26.

  As described above, the process related to the third display mode is performed in the display control unit 231b and the image composition unit 231c, so that a frame indicating the area AR1 is displayed in the display area ARD of the display unit 26, A through image of the sub camera 4 is displayed inside the frame, and an image obtained by reducing (or compressing) the through image of the sub camera 4 is displayed around (outside) the frame.

  That is, according to the present embodiment, the video displayed on the display unit 26 during the moving body photographing mode by the operation of the display switching button 27c is the video corresponding to the first to third display modes described above. One can be selected.

  Further, according to the first to third display modes described above, when the moving body photographing mode is enabled, at least a part of the video obtained by the sub camera 4 is displayed in the display area of the display unit 26. Displayed in ARD.

  On the other hand, the camera control circuit 23 detects whether or not the photographing button 27a has been pressed during a predetermined time (for example, several milliseconds) after the previous processing is completed (step S7 in FIG. 3). ).

  In the following, for the sake of simplicity of explanation, the description will be given by taking as an example a case where there is one moving body that enters the area ARS.

  When the camera control circuit 23 detects that the shooting button 27a is pressed before the predetermined time (for example, several milliseconds) elapses, the camera control circuit 23 sets the subject at the timing when the shooting button 27a is half-pressed. The corresponding AF focusing and exposure adjustment were performed (step S12 in FIG. 3), and the subject was photographed at the timing when the photographing button 27a was fully pressed (step S13 in FIG. 3), and then photographed. The subject is regarded as a moving body that has entered the area ARD, and the process of step S11 in FIG. 3 (described later) is continued.

  When the shooting button 27a is not pressed until the predetermined time (for example, several milliseconds) elapses, the camera control circuit 23 determines the area ARS based on the processing in the moving body detection unit 231a of the image processing unit 231. It is detected whether there is a moving body inside (step S8 in FIG. 3).

  When the camera control circuit 23 detects that there is no moving object inside the region ARS by the process of step S8 in FIG. 3, the camera control circuit 23 returns to step S7 in FIG. 3 to perform the process. When the camera control circuit 23 detects that there is a moving body inside the area ARS, the camera control circuit 23 determines whether the moving body is inside or outside the area ARD based on the processing in the moving body detection section 231a of the image processing section 231. (Step S9 in FIG. 3).

  When the camera control circuit 23 detects that there is a moving body inside the area ARS and outside the area ARD by the process of step S9 in FIG. 3, the camera control circuit 23 performs the above-described process in the moving body detection section 231a of the image processing section 231. Then, control for causing the display unit 26 to display information for notifying the current position of the moving body that has entered the area ARS is performed on the display unit drive circuit 25 (step S10 in FIG. 3), and then, FIG. The process returns to step S7.

  Then, by the process of step S10 in FIG. 3, for example, as shown in FIG. 8, an arrow 101 in the direction corresponding to the current position of the moving body that has entered the area ARS is displayed on the display unit 26.

  Note that the arrow 101 continues to be displayed on the display unit 26 so as to track the current position of the moving body only when the moving body is inside the area ARS and outside the area ARD.

  On the other hand, when the camera control circuit 23 detects that there is a moving body inside the area ARD by the process of step S9 in FIG. 3, or after performing the photographing operation of step S13 in FIG. 3, the image processing unit 231. Based on the processing in the moving body detection unit 231a, it is detected whether the moving body is inside or outside the area AR1 (step S11 in FIG. 3).

  When the camera control circuit 23 detects that there is a moving body inside the area AR1 by the process in step S11 of FIG. 3, the AF control and the AF in accordance with the moving body are performed even if the shooting button 27a is not pressed. Exposure adjustment is performed (step S12 in FIG. 3), and after the moving body is photographed (step S13 in FIG. 3), the process returns to step S11 in FIG.

  When the camera control circuit 23 detects that there is a moving body inside the area ARD and outside the area AR1 by the process of step S11 in FIG. 3, the AF control and exposure adjustment corresponding to the moving body is performed in advance. Then, the process shifts to the photographing standby state (step S14 in FIG. 3).

  The camera control circuit 23 detects whether or not the moving body is moving toward the inside of the area AR1 while maintaining the photographing standby state by the process of step S14 of FIG. 3 (step S15 of FIG. 3).

  Specifically, the camera control circuit 23, based on the processing of the image processing unit 231, for example, the coordinate P of the moving body in the current frame, which is shown as a positional relationship as shown in FIG. In the coordinate Pa of the moving object, the coordinates Pb corresponding to the midpoint coordinates of the boundary closest to the coordinates P in the boundaries dividing the areas ARD and AR1, and the boundaries dividing the areas ARD and AR1 The coordinates Pc corresponding to the midpoint coordinates of the second closest boundary line from the coordinates P are acquired. Then, for example, as shown in FIG. 9, the camera control circuit 23 moves the moving object existing at the position P when the position P is included in a triangular area formed by connecting the positions Pa, Pb, and Pc with straight lines. Is moving toward the inside of the area AR1.

  When the camera control circuit 23 detects that the moving body has not moved inward of the area AR1 by the process in step S15 in FIG. 3, after canceling the shooting standby state in the process in step S14 in FIG. The process returns to step S7 in FIG. In addition, when the camera control circuit 23 detects that the moving body is moving toward the inside of the area AR1 by the process of step S15 in FIG. 3, the moving body enters the inside of the area AR1 from the current position. The travel time predicted to be required until the time is calculated (step S16 in FIG. 3).

  Thereafter, the camera control circuit 23 consumes the moving time due to the movement of the moving body based on the moving time of the moving body obtained as the calculation result of step S16 in FIG. 3 and is substantially the same as the release time lag of the main camera 2. It is detected at the timing when the moving body is inside or outside the area AR1 (step S17 in FIG. 3).

  When the camera control circuit 23 detects that there is a moving body outside the area AR1 by the process of step S17 of FIG. 3, the camera control circuit 23 maintains the shooting standby state by the process of step S14 of FIG. The process returns to step S15. Further, when the camera control circuit 23 detects that there is a moving body inside the area AR1 by the process of step S17 in FIG. 3, the AF focusing result and exposure already obtained by the process of step S14 in FIG. After the moving body is photographed using the adjustment result (step S13 in FIG. 3), the process returns to step S11 in FIG. 3 to perform processing.

  Of the series of processes described above, the processes after step S5 in FIG. 2 are performed until the main camera 2 is turned off or the moving body shooting mode button 27b disables the moving body shooting mode. It will be repeated until

  As described above, according to the present embodiment, when the moving body shooting mode is validated, at least a part of the video of the sub camera 4 having a shooting area wider than the shooting area of the main camera 2. Is displayed on the display unit 26, and information notifying the current position of the moving body that has entered the imaging region of the sub camera 4 and outside the imaging region of the main camera 2 is displayed on the display unit 26. is doing. Therefore, according to the present embodiment, it is possible to improve the photographing opportunity of the moving subject as compared with the conventional case.

  It should be noted that the present invention is not limited to the above-described embodiments, and it is needless to say that various changes and applications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Imaging device 2 Main camera 3 Lens unit 4 Sub camera 21, 42 Imaging device 23 Camera control circuit 26 Display part 31, 41 Lens system 231 Image processing part 231a Moving body detection part 231b Display control part 231c Image composition part

JP 2001-201679 A

Claims (7)

A first camera configured to be capable of mounting a photographing lens unit having an arbitrary angle of view;
A second camera configured to have a wider angle of view than the angle of view of the lens unit for photographing;
A display unit configured to display an image obtained by the first camera and an image obtained by the second camera;
An image processing unit that performs a process of displaying at least a part of the video obtained by the second camera on the display unit;
An imaging device comprising:   The image processing unit displays a video obtained by the first camera in a central region of the display unit, and a video obtained by the second camera around the central region. The imaging apparatus according to claim 1, wherein a process for displaying is performed.   The image processing unit is a video corresponding to a region outside the video obtained by the first camera and a region inside the display region of the display unit, out of the video obtained by the second camera. The image pickup apparatus according to claim 2, wherein an image to be displayed around the central region is generated by cutting out the image.   The image processing unit cuts out a video corresponding to a region outside the video obtained by the first camera from the video obtained by the second camera, and further reduces the cut-out video. The imaging apparatus according to claim 2, wherein an image to be displayed around the central region is generated by performing processing or compression processing.   The image processing unit displays a frame indicating a region of the video obtained by the first camera in a central region of the display unit, and within the frame of the second camera video. 2. The imaging according to claim 1, wherein an image of a corresponding region is directly displayed inside the frame, and an image of a region corresponding to the outside of the frame is reduced or compressed and displayed outside the frame. apparatus.   The image processing unit detects the position and moving direction of the moving body that has entered the angle of view of the second camera, and informs the display unit of the current position of the moving body based on the detection result. The imaging apparatus according to claim 1, further comprising a moving body detection unit that performs processing to be displayed on the imaging device.   The imaging apparatus according to claim 1, wherein the second camera is configured to be detachable from the first camera.

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