JP2011158844A - Projection device, projection method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projection device which corresponds to the input of a plurality of images and arbitrarily arranges and projects each image within a single screen. <P>SOLUTION: The projection device includes input systems 11 to 13 for inputting a plurality of image signals; projection systems 15 to 19 for forming optical images corresponding to the image signals and projecting the images onto a projection screen; operating units 35 (and 32 to 34) for individually designating a plurality of projection ranges in the projection screen; an operating unit 35 for selecting an image signal to be projected to the projection range, according to the plurality of designated projection ranges in the projection screen and the plurality of image signals input by the input systems 11 to 13; a projection image processing unit 14 for generating image signals made up of a plurality of images, on the basis of the selection by the operation unit 35; and a CPU 32, a main memory 33 and a program memory 34 for making the projection systems 15 to 19 project images, on the basis of the image signals generated in the projection image processing unit 14. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a projection apparatus, a projection method, and a program that perform projection by inputting a plurality of image signals.

  A technique has been considered in which the size of a projection area on a projection target (for example, a screen) is acquired, and the zoom magnification is automatically adjusted so that the acquired projection area matches the projected image. (For example, Patent Document 1)

JP 2006-121240 A

  The technique described in the above-mentioned patent document is a technique for adjusting an image corresponding to an input image signal so that the image can be projected with the maximum size within the projection area. In recent years, with the development of mobile environments, there are many devices that can provide image signals to projector devices, and projector devices that can project a plurality of image signals simultaneously so that the projector devices can be shared among a plurality of devices. Many products have been commercialized.

  In such a projector device that supports a plurality of image signals, for example, one screen is divided into a total of four screens of 2 × 2 in the vertical direction, or the left side from the center of one screen is a large screen, and the right side of the screen One is selected from a plurality of preset multi-screen configurations in accordance with the number of input image signals, such as a screen divided into a total of three screens.

  Accordingly, there is not always a multi-screen having a configuration desired by the user. As described above, there is a demand for a function capable of arbitrarily arranging and projecting a plurality of images within one screen.

  In this regard, the technique of the above-mentioned patent document in which the size of a single image to be projected is adjusted by a zoom function cannot be dealt with.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to support a plurality of image inputs, and can project and arrange each image arbitrarily on the screen. Another object is to provide a projection method and a program.

  According to the first aspect of the present invention, there are provided input means for inputting a plurality of image signals, projection means for forming a light image corresponding to the image signals and projecting it onto a projection screen, and a plurality of projection ranges in the projection screen. Select the image signal to be projected in each projection projection range according to the range designation means to be designated, the plurality of projection ranges in the projection screen designated by the range designation means and the plurality of image signals input by the input means And a projection control for projecting by the projection unit based on the image signal generated by the image generation unit, an image generation unit for generating an image signal composed of a plurality of images based on the height of the selection unit Means.

  A second aspect of the present invention is the first aspect of the present invention, further comprising photographing means for photographing a range in which the projection means projects an image, wherein the range specifying means is included in a photographed image obtained by the photographing means. A rectangular area is extracted from the image and a projection range is designated.

  According to a third aspect of the present invention, in the first aspect of the invention, the range designating unit corrects the designated projection range by an aspect ratio indicated by a corresponding image signal.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the range designating unit is configured to select either the projection range selected by the selection unit or the vertical side and the horizontal side of the image signal projected to the projection range. And zoom means for adjusting the size of the image so that the image projected based on the image signal falls within the projection range.

  The invention according to claim 5 is a projection method in a projection apparatus including an input unit that inputs a plurality of image signals, and a projection unit that forms an optical image corresponding to the image signals and projects it on a projection screen, Each projection range according to a range designation step for individually specifying a plurality of projection ranges in the projection screen, a projection range in the projection screen designated in the range designation step, and a plurality of image signals input at the input unit A selection step of selecting an image signal to be projected on the image, an image generation step of generating an image signal composed of a plurality of images based on a selection result in the selection step, and an image signal generated in the image generation step And a projection control step of projecting by the projection unit.

  The invention described in claim 6 is a program executed by a computer built in an input unit that inputs a plurality of image signals and a projection unit that forms an optical image corresponding to the image signals and projects the light image on a projection screen. Each projection according to a range designation step for individually designating a plurality of projection ranges in the projection screen, a plurality of projection ranges in the projection screen designated in the range designation step, and a plurality of image signals input at the input unit A selection step of selecting an image signal to be projected onto a range, an image generation step of generating an image signal composed of a plurality of images based on the selection result in the selection step, and an image signal generated in the image generation step And causing the computer to execute a projection control step of projecting by the projection unit.

  According to the present invention, it is possible to project and arrange each image arbitrarily within one screen, corresponding to a plurality of image inputs.

1 is a block diagram showing a schematic configuration of a functional circuit according to a first embodiment of the present invention. 6 is a flowchart showing processing details of projection image setting corresponding to a plurality of image inputs according to the embodiment. The figure which shows the example of the picked-up image which concerns on the same embodiment. The figure which shows the example of the process which produces a filter file from the picked-up image which concerns on the embodiment. FIG. 6 is a diagram for explaining an example of a created filter file according to the embodiment. FIG. 5 is a diagram showing an example of an image signal allocation process for a filter file according to the embodiment. 10 is a flowchart showing processing details of projection image setting corresponding to a plurality of image inputs according to the second embodiment of the present invention. The figure which shows the example of the projection image which concerns on the same embodiment. The figure which shows the example of the projection image which concerns on the same embodiment. The figure which shows the example of the projection image which concerns on the same embodiment. FIG. 6 is a diagram for explaining an example of a created filter file according to the embodiment.

(First embodiment)
A first embodiment in which the present invention is applied to a DLP (Digital Light Processing) (registered trademark) data projector apparatus will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a functional circuit of a data projector device 10 according to the present embodiment.
Reference numeral 11 denotes a line input / output unit. The line input / output unit 11 includes, for example, a pin jack (RCA) type video input terminal, a D-sub15 type RGB input terminal, an HDMI (High-Definition Multimedia Interface) image / audio input terminal, and a USB (Universal Serial). Bus) is an interface for inputting an image signal and an audio signal from an external device connected by wire.

  Reference numeral 12 denotes a wireless LAN interface (I / F) compliant with, for example, the IEEE 802.11a, 11b, 11g, and 11n standards. The wireless LAN interface 12 is an interface that transmits and receives various signals including image signals to and from an external device such as a personal computer wirelessly connected via the wireless LAN antenna 13.

  Image signals of various standards input from at least one of the line input / output unit 11 and the wireless LAN interface 12 are input to a projection image processing unit 14 that is generally called a scaler via the system bus SB.

  The projection image processing unit 14 unifies the input image signal into an image signal of a predetermined format suitable for projection, appropriately writes the image signal in a built-in display buffer memory, and then reads and projects the written image signal. The image is sent to the image driver 15.

  At this time, data such as symbols indicating various operation states for OSD (On Screen Display) is also superimposed on the image signal in the buffer memory in the projection image processing unit 14 as necessary, and the processed image signal is read out. To the projection image drive unit 15.

  The projection image drive unit 15 multiplies a frame rate according to a predetermined format, for example, 60 [frames / second], the number of color component divisions, and the number of display gradations, in accordance with the transmitted image signal. The micromirror element 16, which is a spatial light modulation element (SLM), is driven to display by high-speed time division driving.

  The micromirror element 16 performs display operation by individually turning on and off each inclination angle of a plurality of micromirrors arranged in an array, for example, XGA (lateral 1024 pixels × vertical 768 pixels) at high speed. Then, an optical image is formed by the reflected light.

  On the other hand, R, G, B primary color lights are emitted cyclically from the light source unit 17 in a time-sharing manner. The primary color light from the light source unit 17 is totally reflected by the mirror 18 and applied to the micromirror element 16.

  Then, an optical image is formed by the reflected light from the micromirror element 16, and the formed optical image is projected and displayed on a screen (not shown) to be projected via the projection lens unit 19.

  The projection lens unit 19 includes a zoom lens and a focus lens inside, and makes it possible to change the projection angle of view and the focus position by moving each lens.

  The light source unit 17 includes a light emitting diode (hereinafter referred to as “R-LED”) 21 that emits red (R) light, a light emitting diode (hereinafter referred to as “G-LED”) 22 that emits green (G) light, and blue ( B) It has a light emitting diode (hereinafter referred to as “B-LED”) 23 that emits light.

  The red light emitted from the R-LED 21 passes through the dichroic mirror 24, is converted into a luminous flux having a substantially uniform luminance distribution by the integrator 25, and is then sent to the mirror 18.

  The green light emitted from the G-LED 22 is reflected by the dichroic mirror 26, then reflected by the dichroic mirror 24, and sent to the mirror 18 via the integrator 25.

The blue light emitted from the B-LED 23 is reflected by the mirror 27, then passes through the dichroic mirror 26, is then reflected by the dichroic mirror 24, and is sent to the mirror 18 through the integrator 25.
The dichroic mirror 24 transmits red light while reflecting green light and blue light. The dichroic mirror 26 reflects green light while transmitting blue light.

  The projection light drive unit 28 controls the light emission timing of each LED 21 to 23 of the light source unit 17 and the waveform of the drive signal. The projection light drive unit 28 controls the light emission operations of the LEDs 21 to 23 in accordance with the timing of the image data given from the projection image drive unit 15 and the control of the CPU 32 described later.

  In the present block diagram, the photographing lens unit 29 is disposed so as to be adjacent to the projection lens unit 19 on the front surface of the data projector apparatus 10 in the actual apparatus, although it is disposed at a position away from the projection lens unit 19.

Like the projection lens unit 19, the photographing lens unit 29 includes a zoom lens and a focus lens, and the projection angle of view and the focus position can be changed by moving each lens. The photographic lens unit 29 can reliably shoot the projection range by the projection lens unit 19 by linking the positions of the projection lens unit 19 and each zoom lens.
The photographic lens unit 29 corresponds to, for example, a contrast AF (automatic focus) function. From the position of the focus lens in the focused state, more specifically, from the drive position of the stepping motor that drives the focus lens, For example, it is possible to calculate the distance to the screen to be imaged.

  For example, a CCD (Charge Coupled Device) 30 is disposed at the imaging position of the photographic lens unit 29 as a solid-state imaging device. An image signal obtained by photographing with the CCD 30 is sent to the photographed image processing unit 31, digitized by A / D conversion, and held in a buffer memory inside the photographed image processing unit 31.

  The captured image processing unit 31 performs processing such as interpolation processing and gamma correction processing on the image signal held in the internal buffer memory, and the image signal held after the processing is read out by the CPU 32.

  The CPU 32 controls all the operations of the above circuits. The CPU 32 is directly connected to the main memory 33 and the program memory 34. The main memory 33 is composed of DRAM and functions as a work memory for the CPU 32. The program memory 34 is configured by an electrically rewritable nonvolatile memory, and stores an operation program executed by the CPU 32, various fixed data, and the like. The CPU 32 reads out the operation program data and the like stored in the program memory 34, develops and stores the operation program data in the main memory 33, and executes the program, thereby controlling the data projector device 10 in an integrated manner. To do.

The CPU 32 executes various projection operations in response to key operation signals from the operation unit 35.
The operation unit 35 includes a key operation unit provided in the main body of the data projector device 10 and a laser light receiving unit that receives infrared light from a remote controller (not shown) dedicated to the data projector device 10. The operation unit 35 directly outputs a key operation signal based on a key operated by a user with a key operation unit of the main body or a remote controller to the CPU 32.

  Specifically, the power key, input switch key, focus up / down key, zoom up / down key, menu key, cursor ("↑" "↓") “←” “→”) key, set key, cancel key, automatic keystone correction key and the like.

  The CPU 32 is further connected to the audio processing unit 36 via the system bus SB. The sound processing unit 36 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection operation into an analog signal, drives the speaker unit 37 to emit a loud sound, or generates a beep sound or the like as necessary.

Next, the operation of the above embodiment will be described.
As described above, the projection image processing unit 14 creates an image to be displayed on the micromirror element 16, and the projection image driving unit 15 displays the created image on the micromirror element 16 for display on the micromirror element 16. In addition, the projection light drive unit 28 drives the LEDs 21 to 23 to emit light. In addition, the photographed image processing unit 31 causes the photographing lens unit 29 and the CCD 30 to photograph the image in the projection direction.

  The projection image processing unit 14, the projection image driving unit 15, the projection light driving unit 28, and the captured image processing unit 31 all operate under the control of the CPU 32. The CPU 32 executes the control process after reading out the operation program, fixed data, and the like stored in the program memory 34, including the processes shown below, and developing them in the main memory 33.

  Further, as described above, both the projection lens unit 19 and the photographing lens unit 29 have a zoom function, and the zoom angle of view (projection angle of view and photographing angle of view) can be linked. During normal operation, taking a parallax caused by the distance between the two lenses into consideration, the photographic image on the photographic lens unit 29 side is ensured so that the projection range of the projection lens unit 19 is within the photographic range of the photographic lens unit 29. It is assumed that the angle is set slightly wider than the projection field angle of the projection lens unit 19.

  FIG. 2 is a flowchart showing the contents of the projection image setting process corresponding to the input of a plurality of image signals. In the process of FIG. 2, when projection ranges of projection images corresponding to a plurality of image signals are set in advance, for example, when projecting images according to a plurality of frames already installed on a wall surface or the like The operation will be described.

  At the beginning of the processing, the CPU 32 causes the photographed image processing unit 31 to photograph an image in the projection direction with the CCD 30 via the photographing lens unit 29 (step S101).

  An image analysis process centering on the contour extraction process is executed on the captured image signal in a state of being held in the buffer memory inside the captured image processing unit 31, and the rectangular forehead position and the distance to the imaging target are calculated. (Step S102).

  FIG. 3 shows an example of an image IM10 taken by the CCD 30. Specifically, two frames installed on the wall surface are photographed, and an image in a state in which contour extraction is performed on the photographed image is shown. Here, the two frames FM11 and FM12 are extracted as double rectangles of the outer frame and the inner frame, respectively.

  When such a concentric double rectangle is extracted, the rectangle positioned inside is extracted as the projection range.

  Further, in parallel with the image processing by the contour extraction, the distance from the focus lens step position to the imaging target surface at that time is determined based on the fact that the contrast type AF function is performed at the time of imaging with the imaging lens unit 29. calculate.

  This can be immediately calculated by storing the step position of the focus lens of the photographing lens unit 29 and the distance to the target in the program memory 34 in advance as a lookup table.

  After calculating the rectangular forehead position and the distance to the target, a filter file is created to insert and project an image later (step S103).

  FIG. 4 is a diagram for explaining the process of creating the filter file. That is, the filter file is determined by the correlation between the rectangular forehead position and the center position of the image. More specifically, the image range of the filter file as indicated by a broken line IV in the figure is set so that the position closest to the outer periphery is the outer periphery in the rectangular forehead positions FM21 and FM22 extracted from the photographed image IM10. decide. A point O in the figure is the center of the image where the photographing optical axis is located, and the rectangular projection range is enlarged / reduced by the zoom function of the projection lens unit 19 with the center point O as a reference. The created filter file is held in the buffer memory in the projection image processing unit 14 via the system bus SB.

  Thereafter, the zoom lens on the projection lens unit 19 side is adjusted in the enlargement direction so that the range indicated by the broken line IV in FIG. 4 is the projection range on the object to be imaged (step S104). At the same time, the focus lens of the projection lens unit 19 is driven using the distance to the imaging target acquired in step S102, so that the automatic focusing operation of the projection image is performed at the same time.

  When the adjustment on the projection lens unit 19 side is completed, the image of the filter file held in the projection image processing unit 14 is again displayed on the micromirror element 16, and is projected toward the projection target by the projection lens unit 19 (step S105). .

  FIG. 5 exemplifies an image of the filter file projected toward the projection target. As shown in the figure, the forehead positions FM21 and FM22 are white for maximum brightness, while the remaining portions are all black.

While the image of the filter file is projected, one white forehead position to which the input image signal is assigned is selected, for example, FM21 among the forehead positions FM21 and FM22 (step S106).
Here, it is confirmed whether or not there is a forehead position to be selected, that is, whether or not the assignment of the input image signal has not been completed yet (step S107).

  After that, for the selected forehead position, one image signal that has not been assigned yet is selected from the image signals input through the line input / output unit 11 and the wireless LAN interface 12 at that time (step S108). ) The selected image signal is projected within the forehead (step S109).

  FIG. 6 exemplifies a state in which an image based on an image signal “input image 1” input as an RGB signal, for example, is inserted into the forehead position FM21 and projected.

  In this way, whether one of the image signals whose assignment has not been confirmed has been projected onto the forehead position, whether or not a confirmation instruction has been given by, for example, a set key operation on the key operation unit of the main body or the remote controller. Judgment is made (step S110).

  Here, when the cursor key is operated instead of the set key, it is assumed that switching to another image signal is instructed, and the process returns to the processing from step S108 to select another image signal.

  In this way, the processes of steps S108 to S110 are repeatedly executed as many times as necessary, and a set key operation for confirmation is executed when an image of a desired image signal is projected on the forehead position.

  If this operation is determined in step S110, the assignment of the image signal to one forehead position is completed as described above, and the process proceeds to step S106 to select the next forehead position.

  In this way, the processing of steps S106 to S110 is sequentially executed, and an arbitrary image signal is assigned to each forehead position. When the assignment of the image signal to the full amount position is completed, it is determined in the above step S107, and the related information between the forehead position and the image signal assigned to the image of the filter file by the above processing is determined and held in the main memory 33. Then (step S111), the processing of FIG. 2 is terminated, and the process proceeds to the simultaneous projection processing of each image at the full-value position according to the determined result.

  In the above-described embodiment, the case where image signals are sequentially selected and associated with each forehead position has been described. However, the aspect ratio of each forehead position and the aspect ratio of the image projected by each image signal are cross-referenced. Thus, the selection order may be such that image signals having closer aspect ratios are prioritized.

  Furthermore, the image signal allocation to each forehead position is automatically assigned according to the aspect ratio of each forehead position and the aspect ratio of the image projected by each image signal, and then re-selected as necessary. It may be a procedure.

  Here, with the vertical and horizontal sides of the image signal that are closer to the vertical and horizontal sides of the forehead as a reference, the aspect ratio of the forehead is made to correspond to the aspect ratio of the image projected from the image signal, and the image fits in the forehead The zoom is adjusted as follows.

  As described above in detail, according to the present embodiment, it is possible to project and arrange each image within one screen in response to a plurality of image inputs.

  In the above embodiment, the photographing function is provided, and the position of the forehead and the rectangular range are extracted and automatically set from the photographed image obtained by the function, so that the user's trouble is simplified. The rectangular area for projection can be set accurately.

(Second Embodiment)
A second embodiment when the present invention is applied to a DLP (registered trademark) data projector apparatus will be described below with reference to the drawings.

  Note that the schematic configuration of the functional circuit of the data projector device 10 'according to the present embodiment is the same as that shown in FIG. To do.

Next, the operation of the above embodiment will be described.
As described above, the projection image processing unit 14 creates an image to be displayed on the micromirror element 16, and the projection image driving unit 15 displays the created image on the micromirror element 16 for display on the micromirror element 16. In addition, the projection light drive unit 28 drives the LEDs 21 to 23 to emit light.

  The projection image processing unit 14, the projection image driving unit 15, and the projection light driving unit 28 all operate under the control of the CPU 32. The CPU 32 executes the control process after reading out the operation program, fixed data, and the like stored in the program memory 34, including the processes shown below, and developing them in the main memory 33.

  FIG. 7 is a flowchart showing the contents of the projection image setting process corresponding to the input of a plurality of image signals. In the processing of FIG. 7, an operation when an image is projected with an arbitrary forehead position set on a wall surface or the like will be described.

At the beginning of the process, the CPU 32 accepts the designation of the first point which is one apex angle of the rectangle indicating the forehead position (step S201).
FIG. 8 shows an example of an image projected from the projection lens unit 19 at this time. In the initial state, only the pointer PT is projected onto an image whose entire surface is black, and the operation unit 35 accepts a movement instruction using a cursor key and a position designation using a set key.

  The position of the pointer PT in the projection screen is moved in response to the operation of the cursor key, and when the set key is operated, the position is designated as the first point of the rectangle.

  After the first point is designated, the designation of the second point using the cursor key and the set key is accepted (step S202).

  FIG. 9 shows an example of a state in which the pointer PT is moved to designate the second point after the first point P11 is designated in the state shown in FIG. In the process of moving the pointer PT for designating the second point, by projecting a rectangular position diagonally between the first point P11 already designated and the position of the pointer PT at that time as shown in the figure, You can present the size of the amount you are trying to set.

  Since the forehead position has been set when the second point is designated, a rectangular forehead position with the first point and the second point as diagonals is set (step S203).

  Thereafter, it is determined whether or not to specify that no further forehead position setting is to be performed, for example, based on whether or not a menu key is operated on the operation unit 35 (step S204).

  Here, when the setting of the forehead position is not completed and another forehead position is set by operating the cursor key and the set key, the process returns to step S201 again.

  FIG. 10 shows a state in which, after the first forehead position FM31 is set, the first point P21 is designated as the second forehead position, and then the pointer PT is moved to designate the second point.

  Similarly, after designating the second point and setting the second forehead position, if it is designated not to set a new forehead position, it is determined in step S204, and the forehead position is set as described above. As a result of completion, a filter file for later inserting and projecting an image is created based on the forehead position set so far (step S203). The created filter file is held in the buffer memory in the projection image processing unit 14 via the system bus SB.

  Then, the image of the filter file held in the projection image processing unit 14 is displayed on the micromirror element 16, and is projected toward the projection target by the projection lens unit 19 (step S204).

  FIG. 11 exemplifies an image of the filter file projected toward the projection target. As shown in the figure, the forehead positions FM31 and FM32 are set to white with the highest luminance, while the remaining portions are set to black.

  In the image of the filter file shown in FIG. 11, the position closest to the outer periphery from the image center point in the FM 31 and FM 32 at the specified forehead position is the outer periphery as in the filter file in the first embodiment described above. Alternatively, the image range of the filter file may be determined.

In a state where the image of the filter file is projected, one white forehead position to which the input image signal is assigned, for example, FM31 among the forehead positions FM31 and FM32 is selected (step S207).
Here, it is confirmed whether or not there is a forehead position to be selected, that is, whether or not the assignment of the input image signal has not been completed yet (step S208).

  Thereafter, for the selected forehead position, one image signal that has not been assigned yet is selected from the image signals input through the line input / output unit 11 and the wireless LAN interface 12 at that time (step S209). ) The selected image signal is projected within the forehead (step S210).

  In this way, whether one of the image signals whose assignment has not been confirmed has been projected onto the forehead position, whether or not a confirmation instruction has been given by, for example, a set key operation on the key operation unit of the main body or the remote controller. Judgment is made (step S211).

  Here, when the cursor key is operated instead of the set key, it is assumed that switching to another image signal is instructed, and the process returns to step S209 to select another image signal.

  Thus, the processes of steps S209 to S211 are repeatedly executed as many times as necessary, and a set key operation for confirmation is executed when an image of a desired image signal is projected on the forehead position.

  If this operation is determined in step S211, the assignment of the image signal to one forehead position is completed as described above. Therefore, the process proceeds to step S207 to select the next forehead position.

  In this way, the processing of steps S207 to S211 is sequentially executed, and an arbitrary image signal is assigned to each forehead position. When the assignment of the image signal to the full amount position is completed, it is determined in step S208.

  Here, according to each frame position and the aspect ratio between the image signals assigned to each frame position, each input image can be projected with a correct aspect ratio. Transform to change.

  In this case, with respect to the vertical or horizontal side of the image signal, the horizontal or vertical side of the forehead may be appropriately enlarged so as to have the same aspect ratio as that of the image signal. The sides may be appropriately reduced so that the aspect ratio is equal to that of the image signal. These selections may be made selectable in advance by prior mode setting.

  Conversely, without changing the aspect ratio of the forehead, the image projected from the image signal to the aspect ratio of the forehead is based on the side of the length and width of the image signal that is closer to the length and width of the forehead. It is also possible to adjust the zoom so that the aspect ratio corresponds and the image fits in the forehead.

  The filter file image obtained by transforming each frame so that the aspect ratio of the input image signal is equal to or does not protrude is used as the final filter file image and assigned to the filter file image by the above processing. Further, after the related information between the forehead position and the image signal is confirmed and stored in the main memory 33 (step S212), the processing of FIG. 7 is terminated, and each image at the full amount position according to the confirmed result is displayed. Shift to simultaneous projection processing.

  As described above in detail, according to the present embodiment, it is possible to project and arrange each image arbitrarily in one screen, corresponding to a plurality of image inputs.

  In the above embodiment, the image signal is assigned to each forehead position, and then the rectangular range of the forehead is modified and set so as to match the aspect ratio of the other image signal assigned. It is not necessary to designate a rectangle with an appropriate aspect ratio simply by designating the forehead position, and the rectangular area to be projected can be accurately set while greatly simplifying the user.

  Although the first and second embodiments have been described as applied to a DLP (registered trademark) type data projector apparatus, the present invention does not limit the projection method or the type of light source. .

  In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination of a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

  DESCRIPTION OF SYMBOLS 10 ... Data projector apparatus, 11 ... Line input / output part, 12 ... Wireless LAN interface (I / F), 13 ... Wireless LAN antenna, 14 ... Projection image processing part, 15 ... Projection image drive part, 16 ... Micromirror element, DESCRIPTION OF SYMBOLS 17 ... Light source part, 18 ... Mirror, 19 ... Projection lens part, 21 ... Red light emitting diode (R-LED), 22 ... Green light emitting diode (G-LED), 23 ... Blue light emitting diode (B-LED), 24 ... Dichroic mirror, 25 ... Integrator, 26 ... Dichroic mirror, 27 ... Mirror, 28 ... Projection light drive unit, 29 ... Shooting lens unit, 30 ... CCD, 31 ... Captured image processing unit, 32 ... CPU, 33 ... Main memory, 34 ... Program memory, 35 ... Operation unit, SB ... System bus.

Claims (6)

An input means for inputting a plurality of image signals;
Projection means for forming a light image according to the image signal and projecting it on a projection screen;
A range specifying means for individually specifying a plurality of projection ranges in the projection screen;
A selection unit for selecting an image signal to be projected on each projection projection range in accordance with a plurality of projection ranges in the projection screen designated by the range designation unit and a plurality of image signals input by the input unit;
Image generating means for generating an image signal composed of a plurality of images based on the height of the selecting means;
A projection apparatus comprising: a projection control unit that causes the projection unit to project based on an image signal generated by the image generation unit. The projection means further comprises a photographing means for photographing a range for projecting an image,
2. The projection apparatus according to claim 1, wherein the range designating unit designates a projection range by extracting a rectangular area from a photographed image obtained by the photographing unit.   The projection apparatus according to claim 1, wherein the range designating unit modifies the designated projection range by an aspect ratio indicated by a corresponding image signal.   The range designating unit matches the projection range selected by the selection unit with either the vertical side or the horizontal side of the image signal projected onto the projection range, and an image projected based on the image signal is displayed. The projection apparatus according to claim 1, further comprising a zoom unit that adjusts an image size so as to be within the projection range. A projection method in a projection apparatus including an input unit that inputs a plurality of image signals, and a projection unit that forms a light image corresponding to the image signals and projects the light image on a projection screen,
A range specifying step for individually specifying a plurality of projection ranges in the projection screen;
A selection step of selecting an image signal to be projected on each projection range in accordance with the projection range in the projection screen designated in the range designation step and a plurality of image signals input at the input unit;
An image generation step of generating an image signal composed of a plurality of images based on the selection result in the selection step;
A projection control step of causing the projection unit to project based on the image signal generated in the image generation step. A program executed by a computer built in an input unit that inputs a plurality of image signals and a projection unit that forms a light image corresponding to the image signals and projects the light image on a projection screen,
A range specifying step for individually specifying a plurality of projection ranges in the projection screen;
A selection step of selecting an image signal to be projected on each projection range in accordance with a plurality of projection ranges in the projection screen specified in the range specification step and a plurality of image signals input in the input unit;
An image generation step for generating an image signal composed of a plurality of images based on the selection result in the selection step;
A program for causing a computer to execute a projection control step of causing the projection unit to project based on the image signal generated in the image generation step.

Images