JP2011109268A - Three-dimensional image display device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to intuitively discriminate which of a 2D image and a 3D image an image being displayed at present is, when reproducing a plurality of images including 2D images and 3D images mixed together. <P>SOLUTION: When images including 2D images and 3D images mixed together are reproduced, the image is discriminated to be a 2D image or a 3D image in accordance with an extension of a file name, and for a 3D image, a plurality of directional images including directional images for 3D display having parallax are generated. These directional images includes parallax images (a left image and a right image) which can be viewed as a 3D image when viewing a 3D LCD 12 from the front, and an image allowing attached information of the 3D image to be viewed when viewing the 3D LCD 12 from the right. Therefore, the user can intuitively discriminate which of a 2D image and a 3D image the image being displayed at present is, by changing an angle in a horizontal direction when viewing the 3D LCD 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a three-dimensional image display apparatus and method, and more particularly to a three-dimensional image display apparatus and method for reading out and reproducing a desired image from a recording medium in which two-dimensional images and three-dimensional images are recorded together.

  A digital camera having a photographing function of a two-dimensional image (2D image) and a three-dimensional image (3D image) records a 2D image and a 3D image in a mixed state on one recording medium. Since a 2D image and a 3D image are mixedly recorded on a recording medium on which an image is recorded by this type of digital camera, the image on the recording medium is recorded by, for example, a file name order (photographing). When sequentially reproduced in the order of date and time), 2D images and 3D images are mixedly reproduced.

  When a plurality of images in which 2D images and 3D images are mixed are sequentially reproduced to search for a desired image, it may not be intuitively recognized from the reproduced images whether the image is a 2D image or a 3D image. For example, a 3D image of a scene with low parallax has a poor stereoscopic effect, and there is a problem that it is difficult to distinguish between a 2D image and a 3D image on an index display multi-image with a small image size.

  Conventionally, in order to easily determine whether an image displayed in order to solve the above problem is a 2D image or a 3D image, attribute information (for example, “2D”, “3D”) regarding the dimension of the image is displayed on the image. There has been proposed an electronic device that is displayed in a superimposed manner (Patent Document 1).

  However, if the attribute information is displayed superimposed on the image, the visibility of the image is impaired. In particular, if the attribute information is displayed on the 3D image, it is an obstacle to stereoscopic viewing by binocular fusion. There is a problem that stereoscopic viewing is difficult.

  On the other hand, in order to suppress a reduction in image visibility, there have been proposed digital cameras and portable electronic devices that enable two types of images to be viewed from different directions (Patent Documents 2 and 3).

  The above-mentioned digital camera, etc. has a display unit that allows two types of images to be viewed from different directions by tilting the camera in the front-rear direction on the back of the camera, and displays a through image (live view image) as one image. As the other image, an image representing camera information such as the number of images that can be taken, shutter speed, and aperture value is displayed.

JP 2004-120165 A JP 2007-184734 A JP 2007-264348 A

  The display unit provided on the back surface of the digital camera or the like described in Patent Documents 2 and 3 is a dedicated display unit that can visually recognize two types of images from different directions by tilting the camera in the front-rear direction. Since two types of images (directivity images) having different directivities in the front-rear direction are displayed, the images cannot be used for displaying 3D images. There is no description about the display.

  The present invention has been made in view of such circumstances. When an image in which a two-dimensional image and a three-dimensional image are mixed is reproduced, it is intuitively determined whether the currently displayed image is a two-dimensional image or a three-dimensional image. It is an object of the present invention to provide a three-dimensional image display apparatus and method that can be discriminated in a discriminating manner and that do not impair the visibility of the original image.

  In order to achieve the above object, a three-dimensional image display apparatus according to claim 1 includes a three-dimensional image display means capable of simultaneously displaying two or more directional images having different directivities in the left and right directions, An image file for reproduction is recorded from a recording medium in which a recorded two-dimensional image file and a three-dimensional image file in which a three-dimensional image composed of a plurality of images taken from the same subject is recorded are mixed. An image acquisition unit to acquire, a determination unit to determine whether the image file acquired by the image acquisition unit is a two-dimensional image file or a three-dimensional image file, and the image file acquired by the determination unit to be a two-dimensional image file Then, a plurality of first directional images including a directional image for two-dimensional display to be displayed simultaneously based on the images in the two-dimensional image file are generated, When it is determined as an image file, a display image for generating a plurality of second directional images including a directional image for 3D display having a parallax to be displayed simultaneously based on images in the 3D image file Generating means and display control means for displaying a two-dimensional image or a three-dimensional image on the three-dimensional image display means based on the first directional image or the second directional image generated by the display image generating means The display image generating means is configured to visually recognize at least one of the first directional image and the second directional image from the front of the three-dimensional image display means. The image is generated so that the image viewed from the left and right direction is different.

  That is, when a reproduction image file is acquired from the recording medium, it is determined whether the acquired image file is a two-dimensional image file or a three-dimensional image file. When the acquired image file is determined to be a two-dimensional image file, a plurality of first directional images including a directional image for two-dimensional display to be displayed simultaneously based on the images in the two-dimensional image file are generated. If it is determined as a three-dimensional image file, a plurality of second directional images including a directional image for three-dimensional display having parallax to be displayed simultaneously based on the images in the three-dimensional image file are generated. . Here, at least one of the generated first directional image and second directional image is a two-dimensional image or a three-dimensional image that displays a three-dimensional image based on the directional image. The image when the image display means is viewed from the front and the image when viewed from the left-right direction are different from each other. Thereby, it is possible to intuitively identify whether the currently displayed image is a two-dimensional image or a three-dimensional image by changing the angle in the left-right direction when viewing the three-dimensional image display means.

  The three-dimensional image display means is capable of simultaneously displaying two or more directional images having different directivities in the left and right directions, so that the first directional image or the second directional image is displayed. By simply generating a sex image as described above, it is possible to display an image that can be intuitively identified as a two-dimensional image or a three-dimensional image.

  3. The three-dimensional image display device according to claim 1, wherein the first directional image or the second directional image generated by the display image generating means is the three-dimensional image display. When the means is visually recognized from the front, each means includes a first image visually recognized as a two-dimensional image or a three-dimensional image. Thereby, when the said three-dimensional image display means is seen from the front, it can be displayed as a normal two-dimensional image or a three-dimensional image, and the visibility of an image is not impaired.

  3. The three-dimensional image display device according to claim 2, wherein the first directional image or the second directional image generated by the display image generating means is the three-dimensional image display. When the means is viewed from the left-right direction, it includes a second image that is viewed as an image different from the first image.

  That is, when the three-dimensional image display means is viewed from the left-right direction, it is different from the first image (ordinary two-dimensional image or three-dimensional image) visually recognized when the three-dimensional image display means is viewed from the front. The second image can be visually recognized, and the change from the first image to the second image can intuitively identify whether the currently displayed image is a two-dimensional image or a three-dimensional image. Yes.

  4. The three-dimensional image display device according to claim 3, wherein the second directional image included in the first directional image or the second directional image generated by the display image generating means is provided. The image is an image for displaying attached information recorded together with the image in the two-dimensional image file or the three-dimensional image file. Thereby, it is possible to intuitively identify whether the image is a two-dimensional image or a three-dimensional image, and it is possible to easily confirm the attached information of the two-dimensional image or the three-dimensional image.

  5. The three-dimensional image display device according to claim 3, wherein the second image included in the second directivity image generated by the display image generation means is the three-dimensional image. The three-dimensional image in which the display means is visually recognized from the front is another three-dimensional image having a different display position in the left-right direction on the three-dimensional image display means. When the viewing direction of the three-dimensional image display means is changed, the displayed three-dimensional image moves in the left-right direction. Therefore, it is possible to intuitively identify whether the currently displayed image is a two-dimensional image or a three-dimensional image. Can do.

  The three-dimensional image display device according to any one of claims 1 to 5, wherein the determination unit is configured to perform the determination based on an extension of the image file or attached information stored in the image file. It is characterized by determining whether the image file is a two-dimensional image file or a three-dimensional image file.

  The three-dimensional image display device according to any one of claims 1 to 6, wherein the display image generation unit includes a plurality of image files based on a plurality of image files acquired by the image acquisition unit. A reduced image is generated, and includes a multi-image generating means for generating a multi-image for one screen in which the plurality of reduced images are arranged in a matrix, and each reduced image constituting the multi-image is converted into each reduced image. It is characterized in that it is generated as the first directional image or the second directional image depending on whether the corresponding image file is a two-dimensional image file or a three-dimensional image file.

  According to this, a multi-image in which a reduced image of a two-dimensional image and a reduced image of a three-dimensional image are mixed can be displayed. In particular, since each of the reduced images constituting the multi-image is small, it may be difficult to identify whether the image is a two-dimensional image or a three-dimensional image. It is possible to intuitively identify whether each reduced image is a two-dimensional image or a three-dimensional image.

  The three-dimensional image display device according to any one of claims 1 to 7, wherein the three-dimensional image file is a multi-stored image in which one or a plurality of images are successively stored following the head image. The display image generating means reads out an image from the acquired two-dimensional image file, and reads out a head image from the three-dimensional image file; and the acquired image file includes: When it is determined that the image is a three-dimensional image file, the first image read-out means includes second image reading means for reading an image other than the head image or all images including the head image from the three-dimensional image file. When a first directional image for two-dimensional display is generated based on the image read by the means, and the acquired image file is determined as a three-dimensional image file An image other than the head image read by the first image reading means and the head image read by the second image reading means, or all images read by the second image reading means Generating a second directional image for three-dimensional display based on the display control means, causing the three-dimensional image display means to display a two-dimensional image based on the generated first directional image; When the second directional image is generated, a three-dimensional image is displayed on the three-dimensional image display unit based on the second directional image after a predetermined time has elapsed since the display of the two-dimensional image. It is a feature.

  The first image reading means reads one image regardless of whether the acquired image file is a two-dimensional image file or a three-dimensional image file. In the case of a three-dimensional image file, the top image is read out. Then, a first directivity image for two-dimensional display is generated based on the image read by the first image reading means, and the two-dimensional image is displayed on the three-dimensional image display means. At this time, it cannot be identified whether the displayed image is based on a two-dimensional image file or a three-dimensional image file. When the acquired image file is determined to be a three-dimensional image file, the second image reading means reads an image other than the head image or all images including the head image from the three-dimensional image file. Then, a second directional image for three-dimensional display is generated based on all the images recorded in the three-dimensional image file, and the two-dimensional image previously displayed based on the second directional image. Instead, a three-dimensional image is displayed. That is, when the read image file is a three-dimensional image file, the two-dimensional image (first image) is displayed first, and the three-dimensional image is displayed after a predetermined time has elapsed. The change from the two-dimensional image to the three-dimensional image becomes a visual stimulus, and it is possible to intuitively identify the two-dimensional image or the three-dimensional image.

  The invention according to claim 9 is a three-dimensional image display method for displaying a two-dimensional image or a three-dimensional image on a three-dimensional image display means capable of simultaneously displaying two or more directional images having different directivities in the left-right direction. Playback from a recording medium in which a two-dimensional image file in which a two-dimensional image is recorded and a three-dimensional image file in which a three-dimensional image composed of a plurality of images taken from the same subject is recorded are mixed. A step of acquiring an image file for use, a step of determining whether the acquired image file is a two-dimensional image file or a three-dimensional image file, and when the acquired image file is determined to be a two-dimensional image file, A plurality of first directional images including a directional image for two-dimensional display to be displayed simultaneously based on the images in the three-dimensional image file are generated and discriminated from the three-dimensional image file Generating a plurality of second directional images including a directional image for 3D display having a parallax to be displayed simultaneously based on images in the 3D image file; and Displaying the two-dimensional image or the three-dimensional image on the three-dimensional image display means based on the one directivity image or the second directivity image, and generating the display image includes the step of generating the display image. At least one directional image of the first directional image and the second directional image is an image in which the image viewed from the front and the image viewed from the left-right direction are different from each other. It is characterized by generating as follows.

  The three-dimensional image display method according to claim 9, wherein the first directional image or the second directional image generated is visually recognized from the front by the three-dimensional image display means. In the case of the first image, the first image viewed as a two-dimensional image or a three-dimensional image is included.

  11. The three-dimensional image display method according to claim 10, wherein the generated first directional image or second directional image is visually recognized by the three-dimensional image display means from the left and right directions. In this case, the image processing apparatus includes a second image that is visually recognized as an image different from the first image.

  The three-dimensional image display method according to claim 11, wherein the second image included in the generated first directional image or second directional image is the two-dimensional image. It is an image for displaying attached information recorded together with the image in the image file or the three-dimensional image file.

  The three-dimensional image display method according to claim 11, wherein the second image included in the generated second directivity image is visually recognized by the three-dimensional image display unit from the front. The three-dimensional image to be displayed is another three-dimensional image having a different display position in the left-right direction on the three-dimensional image display means.

  The three-dimensional image display method according to any one of claims 9 to 13, wherein the determining step is based on an extension of the image file or attached information stored in the image file. It is characterized by determining whether the image file is a two-dimensional image file or a three-dimensional image file.

  15. The three-dimensional image display method according to claim 9, wherein the step of generating the display image includes a plurality of reduced images based on the plurality of acquired image files. And generating a multi-image for one screen in which the plurality of reduced images are arranged in a matrix, and each reduced image constituting the multi-image is converted into an image file corresponding to each reduced image. According to whether it is a two-dimensional image file or a three-dimensional image file, it is generated as the first directional image or the second directional image.

  The three-dimensional image display method according to any one of claims 9 to 15, wherein the three-dimensional image file is a multi-image in which one or a plurality of images are continuously stored following the head image. The step of generating the display image is a first image reading step of reading an image from the acquired two-dimensional image file and reading a head image from the three-dimensional image file, and the acquired image. When the file is determined to be a three-dimensional image file, a second image reading step of reading an image other than the head image or all images including the head image from the three-dimensional image file includes the first image A first directional image for two-dimensional display is generated based on the image read in the reading step, and the acquired image file is determined as a three-dimensional image file. Then, the first image read by the first image reading step and the image other than the first image read by the second image reading step, or read by the second image reading step The step of generating a second directional image for 3D display based on all the images and displaying the 2D image or the 3D image is based on the generated first directional image. When the image is displayed on the three-dimensional image display means and the second directional image is generated, a predetermined time elapses from the display of the two-dimensional image, and then the three-dimensional image is based on the second directional image. Is displayed on the three-dimensional image display means.

  According to the present invention, when reproducing an image in which a two-dimensional image and a three-dimensional image are mixed, it is possible to intuitively identify whether the currently displayed image is a two-dimensional image or a three-dimensional image. The visibility of the image can be maintained. As a result, the two-dimensional image and the three-dimensional image can be satisfactorily viewed, and a desired two-dimensional image or a three-dimensional image can be easily found out of images in which the two-dimensional image and the three-dimensional image are mixed. There is an effect that can be.

FIG. 1 is an external view showing a three-dimensional image display apparatus according to a first embodiment of the present invention. FIG. 2 is a block diagram showing an internal configuration of the three-dimensional image display apparatus shown in FIG. FIG. 3 is a diagram showing the principle of the three-dimensional liquid crystal display shown in FIG. 2 in which different images can be visually recognized from four different directions in the left-right direction. FIG. 4 is a diagram showing a directory structure of a memory card in which image files are recorded. FIG. 5 is a diagram illustrating a data structure of a 3D image file for n-viewpoint 3D images. FIG. 6 is a diagram illustrating a data structure of a 3D image file for 3D images of two viewpoints. FIG. 7 is a flowchart showing the operation of the three-dimensional image display apparatus. FIG. 8 is a diagram illustrating an example of an image displayed on the three-dimensional liquid crystal display of the three-dimensional image display device. FIG. 9 is a flowchart showing an embodiment of a modified example of the 3D image display apparatus. FIG. 10 is a front view of a digital camera provided with the three-dimensional image display device according to the second embodiment of the present invention. FIG. 11 is a rear view of a digital camera provided with the three-dimensional image display device according to the second embodiment of the present invention. FIG. 12 is a block diagram showing an internal configuration of the digital camera shown in FIG. 13 is a rear view of the digital camera shown in FIG. 11, and is a rear view when viewed from the front. FIG. 14 is a rear view of the digital camera shown in FIG. 11, and is a rear view when viewed obliquely from the right. FIG. 15 is a rear view of the digital camera shown in FIG. 11, and is a rear view when viewed obliquely from the left. FIG. 16 is a diagram illustrating an example of an image displayed by the three-dimensional image display device according to the third embodiment of the present invention. FIG. 17 is a diagram illustrating an example of first display information displayed by the three-dimensional image display device according to the fourth embodiment of the present invention. FIG. 18 is a diagram showing an example of second display information displayed by the three-dimensional image display device according to the fourth embodiment of the present invention.

  Embodiments of a 3D image display apparatus and method according to the present invention will be described below with reference to the accompanying drawings.

[First embodiment of three-dimensional image display apparatus]
FIG. 1 is an external view showing a three-dimensional image display apparatus according to a first embodiment of the present invention.

  As shown in FIG. 1, this three-dimensional image display device (3D image display device) 10 is a digital photo frame equipped with a color three-dimensional liquid crystal display (hereinafter referred to as “3D LCD”) 12. An operation unit 14 including a power switch, a frame advance switch, a switch for selecting normal display / slideshow, and the like is provided, and a memory card slot 16 is provided on a side surface.

  FIG. 2 is a block diagram showing an internal configuration of the 3D image display apparatus 10.

  As shown in FIG. 2, the 3D image display apparatus 10 includes a central processing unit (CPU) 20, a work memory 22, a card interface (card I / F) 24, a display controller 26, in addition to the 3D LCD 12 and the operation unit 14. A buffer memory 28, an EEPROM 30, and a power supply unit 32 are provided.

  The 3D LCD 12 can simultaneously display two or more directional images having different directivities in the left and right directions. In this embodiment, the lenticular lens can simultaneously display directional images in four directions (four). It is like that.

  FIG. 3 is a diagram showing the principle of the 3D LCD 12 in which different images can be viewed from four different directions in the left-right direction.

A 3D LCD 12 shown in FIG. 3 includes a lenticular lens 12B on a pixel 12A, and each of the pixels n _4i-3 , n _4i-2 , n _4i-1 , n _4i-1 , Four directional images having directivity in the left-right direction can be displayed by the pixel group for each pixel n _4i (i = 1, 2, 3,...).

That is, the pixel group of pixels _{n 4i-3} is a wrench by lenticular lens 12B can display the direction of the directional images of the viewpoint _{P 1,} similarly pixel _{n 4i-2,} pixel _{n 4i-1,} and the pixel _{n 4i} Each pixel group can display directivity images in the directions of the viewpoints P ₂ , P ₃ , and P ₄ by the lenticular lens 12B.

Here, when the 3D LCD 12 is viewed from the front (when the positions of the left and right eyes are at the viewpoints P ₂ and P ₃ ), two images from the pixel group of the pixel n _4i-2 and the pixel n _4i-1 are _displayed. Similarly, when the 3D LCD 12 is viewed from the right (when the positions of the left and right eyes are at the viewpoints P ₁ and P ₂ ), from the pixel group of the pixels n _4i-3 and n _4i-2 When the 3D LCD 12 is viewed from the left (when the positions of the left and right eyes are at the viewpoints P ₃ and P ₄ ), a pixel group of the pixels n _4i-1 and n _4i You can see two images from each.

Therefore, when the same image is displayed as the four directional images corresponding to the viewpoints P _{1 to} P ₄ , the same image can be viewed from any position, and the four viewpoint parallax images having parallax are displayed. By doing so, a different parallax image for each viewpoint position can be viewed (stereoscopically).

  The CPU 20 functions as a control unit that performs overall control of the overall operation of the 3D image display apparatus 10 according to a predetermined control program based on an input from the operation unit 14. The contents of control by the CPU 20 will be described later.

  The work memory 22 includes a calculation work area for the CPU 20 and a temporary storage area for image data.

  The card I / F 24 is electrically connected to the memory card 34 when a memory card 34 that is a recording medium of the digital camera is inserted into the memory card slot 16, and data (image data) is exchanged with the memory card 34. It is an apparatus for performing transmission and reception.

  The display controller 26 repeatedly reads out image data for 2D display, image data for 3D display, and the like from the buffer memory 28, which is a temporary storage area dedicated to image data for display, for 2D display on the 3D LCD 12, and for 3D display And output to the 3D LCD 12. Thereby, the 2D image and the 3D image are displayed on the 3D LCD 12.

  The power supply unit 32 controls power from a battery (not shown) or a commercial power supply and supplies operating power to each unit of the 3D image display device 10.

  The operation unit 14 includes an infrared remote control device that transmits an infrared remote control signal for operation from the infrared remote control device to an infrared reception unit (not shown) of the 3D image display device 10.

<Memory card directory structure>
FIG. 4 shows an example of a directory structure of the memory card 34 mounted on the 3D image display device 10.

  As shown in FIG. 4, a 2D image or a 3D image file is arranged in a folder (100_PICT) in a hierarchy immediately below the image root directory DCIM (Digital Camera IMages).

  Each image file is given a file name based on a predetermined naming rule, and in this embodiment, the file name is given by four alphabetic characters (free characters) + four digit file number. The file number is automatically assigned a sequential number of the maximum number + 1 in the order of image file creation.

  The extension of the image file is different between the 2D image and the 3D image. In this embodiment, the extension of the image file of the 2D image is “JPG” representing the JPEG image, and the extension of the image file of the 3D image. The extension is “MPO” representing one multi-picture file created by connecting a plurality of JPEG images.

  Note that multi-picture files include those for panoramic images and multi-angle images in addition to those for 3D images (stereoscopic view).

  FIG. 5 is a diagram showing an example of the data structure of a multi-picture file (3D image file).

  As shown in FIG. 5, the 3D image file F uses the Exif standard file format and adopts a file format in which a plurality of images are integrated and recorded. Individual image (1) (first image) A1, individual image (2) A2, individual images (2) A2,..., Individual images (n) An are connected.

  Each individual image area is divided into an SOI (Start of Image) indicating the start position of each individual image and an EOI (End of Image) indicating the end position. Exif attached information of the individual image follows the SOI. An APP1 marker segment to be recorded and an APP2 marker segment in which multi-viewpoint accessory information is recorded are provided, and then a viewpoint image (individual image) is recorded.

  The APP1 marker segment is provided with Exif identification information, a TIFF header, and an IFD (Image file directory) area (IFD0 area (0th IFD) and IFD1 area (1st IFD)). A thumbnail image generated from an individual image is stored in the IFD1 area (1st IFD). The APP2 marker segment includes individual information IFD.

  The individual information IFD includes an individual image type (3D, panorama, multi-angle), the number of individual images, an individual image number, a convergence angle, a baseline length, and the like.

  FIG. 6 is a diagram illustrating an example of a data structure of a multi-picture file in which images of two viewpoints (a left image and a right image) are stored. The multi-picture file of this embodiment stores a left image as a viewpoint image (1) (first image) and a right image as a viewpoint image (2).

<Operation of 3D Image Display Device 10>
Next, the operation of the 3D image display apparatus 10 will be described with reference to the flowchart shown in FIG.

  In FIG. 7, when the power switch of the operation unit 14 of the three-dimensional image display device 10 is turned on and normal playback for playing back still images one frame at a time is set as the playback mode, the CPU 20 stores the memory card slot 16. The image file of the first frame (one frame with the smallest file number) is read from the memory card 34 attached to the memory card 34 via the card I / F 24, and the extension is acquired from the file name of the acquired image file ( Step S10). In the memory card 34, 2D image files and 3D image files are mixedly recorded.

  The CPU 20 determines whether the read image file is a 2D image file or a 3D image file based on the extension of the acquired file name (step S12). That is, when the extension is “JPG”, it is determined as a 2D image file, and when the extension is “MPO”, it is determined as a multi-picture file (“MP file”).

  When it is determined in step S12 that the file is a 2D image file (in the case of “JPG”), the CPU 20 reads an image (main image) stored in the 2D image file (step S14) and displays it on the 3D LCD 12. Display information (2D display image or the like) is generated (step S16).

  The CPU 20 temporarily stores the generated 2D display image in the buffer memory 28, and the display controller 26 reads the 2D display image from the buffer memory 28 and outputs it to the 3D LCD 12. Thereby, a 2D image is displayed on the 3D LCD 12 (step S18).

  On the other hand, if it is determined in step S12 that the file is an MP file (in the case of “MPO”), the CPU 20 reads out the first image (for example, the viewpoint image (1) shown in FIG. 6) stored in the MP file ( Step S20) Subsequently, the type of the image stored in the MP file is determined (Step S22). As described above, since the individual image type (3D, panorama, multi-angle, etc.) is stored in the individual information IFD of the MP file, a 3D image, a panoramic image, or a multi-angle image (2D) is stored from this type information. In the case of a 2D image, the process proceeds to step S16. In the case of a 3D image, the process proceeds to step S22.

  In step S24, first display information (2D display image) for displaying the left image on the 3D LCD 12 is generated based on the top image (in this embodiment, “left image”) acquired in step S20. The CPU 20 temporarily stores the generated 2D display image in the buffer memory 28, and the display controller 26 reads the 2D display image from the buffer memory 28 and outputs it to the 3D LCD 12. As a result, the 2D image (left image) is displayed on the 3D LCD 12 (step S26).

  Subsequently, the CPU 20 reads the remaining individual images (in this embodiment, “right image”) from the 3D image file, and reads the left image and right image (for example, the viewpoint image (1) and the viewpoint shown in FIG. 6). Based on the image (2)), second display information (3D display image or the like) to be displayed on the 3D LCD 12 is generated (step S30).

  Next, the CPU 20 determines whether or not a predetermined time has elapsed after displaying the 2D image (left image) in step S26 (step S32), and determines that the predetermined time has elapsed (in the case of “Yes”). Instead of the currently displayed 2D image (left image), a 3D image is displayed based on the second display information (3D display image) generated in step S30 (step S34).

  When the image file read as described above is a 3D image file, a 2D image (left image) is displayed first, and a 3D image is displayed after a predetermined time. The change from the 2D image to the 3D image becomes a visual stimulus, and it is possible to intuitively identify whether the image currently displayed on the 3D LCD 12 is a 2D image or a 3D image.

  When the read image file is a 2D image file or an MP file that is not a 3D image file, there is no change from the 2D image to the 3D image as described above.

  Further, the predetermined time is preferably the shortest time (for example, about 0.5 seconds) of the time during which the change from the 2D image to the 3D image can be confirmed. This is because if the predetermined time is too short, the change cannot be confirmed, and if too long, the appreciation of the 3D image is delayed.

  Next, the display information and the second display information generated in step S16 and step S30 will be described in detail.

  In step S16, as described above, a 2D image (first image) is generated as display information. Further, based on the attached information stored in the 2D image file (or MP file other than the 3D image file), the display information is generated. An image (second image) indicating the attached information is generated.

  Then, as described with reference to FIG. 3, as the four directional images to be displayed on the 3D LCD 12, a 2D image (first image) and an image (second image) indicating the attached information of the 2D image are appropriately used. The assigned 3D LCD 12 is displayed.

For example, when the 3D LCD 12 is viewed from the front (when the positions of the left and right eyes are at the viewpoints P ₂ and P ₃ (see FIG. 3)) and when viewed from the right (the positions of the left and right eyes are the viewpoints P ₁ and P _2). The corresponding 2D image (first image) with the left and right eyes, respectively, the corresponding pixel n _4i-3 , pixel n _4i-2 , pixel n _4i-1 of the 3D LCD 12 When a 2D image (first image) is displayed in the group and the 3D LCD 12 is viewed from the left (when the positions of the left and right eyes are at the viewpoints P ₃ and P ₄ ), the attached information of the 2D image from the viewpoint P ₄ is displayed. The image (second image) indicating the attached information is displayed on the corresponding pixel n _4i pixel group of the 3D LCD 12 so that the displayed image (second image) can be visually _recognized .

  Similarly, in step S30, 3D display images (left image and right image (first image)) are generated as the second display information. Further, based on the attached information stored in the 3D image file, the 3D display image is generated. An image (second image) indicating the attached information is generated.

  Then, as four directional images to be displayed on the 3D LCD 12, a 3D display image (first image) and an image (second image) indicating additional information of the 3D image are appropriately assigned and displayed on the 3D LCD 12.

For example, when the 3D LCD 12 is viewed from the front (when the positions of the left and right eyes are at the viewpoints P ₂ and P ₃ (see FIG. 3)), the left image and the right image (first image) are respectively displayed with the left and right eyes. When viewing the 3D LCD 12 from the right side (the positions of the left and right eyes) so that the 3D LCD 12 displays the 3D image (first image) on the corresponding pixel n _4i-2 and pixel n _4i-1 pixel group, 3D but when in the viewpoint P _1, P _2), from the viewpoint P ₁ so that the image (the second image) can be visually recognized showing attribute information of the 3D image, the image showing the accessory information (second image) The image is displayed on the pixel group of the corresponding pixel n _4i-3 of the LCD 12. Further, when the 3D LCD 12 is viewed from the left (when the positions of the left and right eyes are at the viewpoints P ₃ and P ₄ ), the corresponding left and right eyes can respectively recognize the same left image, and the corresponding pixel n _4i of the 3D LCD 12. _-3 , the left image is displayed on the pixel group of the pixel n _4i-2 .

The following serial in Table 1 may summarizes the image displayed by the 3D LCD 12, read image files in accordance with the 2D image file or a 3D image file, from the viewpoint _P 1 to P ₄ The image which can be visually recognized is shown.

  FIG. 8 is a diagram illustrating an example of an image displayed on the 3D LCD 12 of the 3D image display device 10. FIGS. 8A and 8B are diagrams illustrating a case where the image of the 3D image file is reproduced, respectively. FIG. 8C shows a case where the 3D LCD 12 is viewed from the left when the image of the 2D image file is being reproduced.

  8B and 8C show only the attached information of the 3D image and the attached information of the 2D image, respectively, the images are also displayed at the same time.

  [Table 2] below is a table showing images that can be viewed according to the type of image file to be reproduced (2D image file, 3D image file) and the viewing direction of the 3D LCD 12.

In the case of a 3D image file, a 2D image (left image) is displayed based on the first display information until a predetermined time elapses from the start of display. As shown in [Table 1], the viewpoints P ₁ to P ₂ are displayed. only the same left image is adapted to be visually recognized from P _4.

  As described above, when the 3D LCD 12 is viewed from the front, a 2D image or a 3D image is displayed so that the reproduced image file can be visually recognized in accordance with the 2D image file or the 3D image file. In this case, since information other than the 2D image or the 3D image (for example, attached information) is not visually recognized, the 2D image or the 3D image can be satisfactorily viewed.

  On the other hand, when the 3D LCD 12 is viewed from the right, the attached information of the 3D image can be visually recognized only when the 3D image file is played back, and when the 3D LCD 12 is viewed from the left, the 2D image file is played back. Only in the case, the attached information of the 2D image can be visually recognized. Accordingly, it is possible to intuitively identify whether the currently reproduced image is a 2D image file or a 3D image file, and it is possible to confirm the attached information of the 2D image or the 3D image.

<Modification of 3D Image Display Device 10>
FIG. 9 is a flowchart showing a modified embodiment of the 3D image display device 10. In addition, the same code | symbol is attached | subjected to the part which is common in the flowchart shown in FIG. 7, and the detailed description is abbreviate | omitted.

  In the embodiment of this modified example, in addition to a 3D image file as an MP file, a panoramic image file is also identified. When a panoramic image file is identified, a panoramic image is generated as second display information, and a panoramic image is also generated. Is different from the embodiment shown in FIG.

  In the flowchart of FIG. 9, in step S22 ′, the image type stored in the MP file based on the type information of the individual image stored in the MP file is an image such as a 3D image, a panoramic image, or other multi-angle images. Are 3D images, panoramic images, or other images. When the determined image type is a 3D image or a panoramic image (in the case of “Yes”), the process proceeds to step S24.

  Further, after the process of step S28, it is determined whether or not the image type is a 3D image in step S40. If it is determined that the image is a 3D image (in the case of “Yes”), the process proceeds to step S30. If it is determined that the image is not a 3D image (a panoramic image) (in the case of “No”), the process proceeds to step S42. .

  In step S42, second display information (panoramic image) is generated by combining the images based on all the images of the MP file (panoramic image file). The panoramic image has an aspect ratio different from that of a normal 2D image or 3D image, and therefore can be easily distinguished from these images. Accordingly, the four directional images displayed on the 3D LCD 12 are the same panoramic image (2D image).

[Second Embodiment of Three-Dimensional Image Display Device]
10 and 11 are a front view and a rear view, respectively, of a digital camera provided with the three-dimensional image display device according to the second embodiment of the present invention.

  As shown in these drawings, the digital camera 100 is provided with a pair of left and right photographing lenses 160L and 160R on the front surface (front surface), and a 3D LCD 150 and an operation unit 116 on the rear surface.

  FIG. 12 is a block diagram showing the internal configuration of the digital camera 100.

  As shown in FIG. 12, the digital camera 100 is a compound eye camera including two photographing units 112R and 112L, and a 3D image composed of a plurality of images photographed by the plurality of photographing units 112R and 112L is used for one 3D display. Can be recorded as a 3D image file.

  A main CPU 114 (hereinafter referred to as “CPU 114”) controls the overall operation of the digital camera 100 according to a predetermined control program based on an input from the operation unit 116.

  A ROM 124, an EEPROM 126, and a work memory 128 are connected to the CPU 114 via a system bus 122. The ROM 124 stores a control program executed by the CPU 114 and various data necessary for control. The EEPROM 126 stores various setting information relating to the operation of the digital camera 100 such as user setting information. The work memory 128 includes a calculation work area for the CPU 114 and a temporary storage area for image data.

  The operation unit 116 is a means for a user to perform various operation inputs, and includes a power / mode switch, a mode dial, a release switch, a cross key, a zoom button, a MENU / OK button, a DISP button, and a BACK button. . The operation display unit 118 is a means for displaying an operation input result from the operation unit 116, and includes, for example, a liquid crystal panel or a light emitting diode (LED).

  The power / mode switch is means for switching on / off the power of the digital camera 100 and switching the operation mode (playback mode and photographing mode) of the digital camera 100. When the power / mode switch is turned on, power supply from the power supply unit 120 to each unit of the digital camera 100 is started, and various operations of the digital camera 100 are started. When the power / mode switch is turned off, the supply of power from the power supply unit 120 to each unit of the digital camera 100 is stopped.

  The mode dial is an operating means for switching the shooting mode of the digital camera 100. The 2D still image shooting mode for shooting a 2D still image according to the setting position of the mode dial, and the 2D movie shooting for shooting a 2D movie. The shooting mode is switched between a mode, a 3D still image shooting mode for shooting a 3D still image, and a 3D moving image shooting mode for shooting a 3D moving image. When the shooting mode is set to the 2D still image shooting mode or the 2D moving image shooting mode, a flag indicating that the 2D mode for shooting a 2D image is set in the shooting mode management flag 130. When the shooting mode is set to the 3D still image shooting mode or the 3D moving image shooting mode, the shooting mode management flag 130 is set to indicate a 3D mode for shooting a 3D image. The CPU 114 refers to the shooting mode management flag 130 to determine the shooting mode setting.

  The release switch is composed of a two-stage stroke type switch composed of so-called “half-press” and “full-press”. When the release switch is pressed halfway in still image shooting mode, shooting preparation processing (for example, AE (Automatic Exposure) processing, AF (Auto Focus) processing, AWB (Automatic White Balance)) (Balance) processing) is performed, and when the release switch is fully pressed, still image shooting / recording processing is performed. In the moving image shooting mode, moving image shooting starts when the release switch is fully pressed, and moving image shooting ends when the release switch is fully pressed again. Note that a release switch for still image shooting and a release switch for moving image shooting may be provided separately.

  The 3D LCD 150 is a 3D image display similar to the 3D LCD 12 of the 3D image display device 10 illustrated in FIG. 1, and functions as an image display unit for displaying a captured 2D image or 3D image, and at the time of various settings. It functions as a GUI. The 3D LCD 150 functions as an electronic viewfinder for confirming the angle of view in the shooting mode.

  The vertical / horizontal shooting detection circuit 132 includes, for example, a sensor for detecting the orientation of the digital camera 100, and inputs the detection result of the orientation of the digital camera 100 to the CPU 114. The CPU 114 switches between vertical shooting and horizontal shooting when the digital camera 100 is oriented.

  Next, the shooting function of the digital camera 100 will be described. In FIG. 12, each part in each of the photographing units 112R and 112L is distinguished from each other by adding symbols R and L. However, since the function of each unit is substantially the same, in the following description, the symbols R and L are referred to. The description is omitted.

  The photographing lens 160 includes a zoom lens, a focus lens, and a diaphragm. The zoom lens and the focus lens move back and forth along the optical axis (LR and LL in the drawing) of each photographing unit. The CPU 114 performs zooming by controlling the position of the zoom lens by controlling the driving of a zoom actuator (not shown) via the photometry / ranging CPU 180, and controls the driving of the focus actuator via the photometry / ranging CPU 180. Thus, focusing is performed by controlling the position of the focus lens. Further, the CPU 114 controls the aperture amount (aperture value) of the diaphragm by controlling the driving of the diaphragm actuator via the photometry / ranging CPU 180, and controls the amount of light incident on the image sensor 162.

  When shooting a plurality of images in the 3D mode, the CPU 114 drives the shooting lenses 160R and 160L of the shooting units 112R and 112L in synchronization. That is, the photographing lenses 160R and 160L are always set to the same focal length (zoom magnification). In addition, the aperture is adjusted so that the same incident light amount (aperture value) is always obtained. Further, in the 3D mode, focus adjustment is performed so that the same subject is always in focus.

  The flash light emitting unit 176 is constituted by, for example, a discharge tube (xenon tube), and emits light as necessary when photographing a dark subject or in backlight. The charge / light emission control unit 178 includes a main capacitor for supplying a current for causing the flash light emission unit 176 to emit light. The CPU 114 transmits a flash emission command to the photometry / ranging CPU 180 to perform charge control of the main capacitor, discharge (light emission) timing of the flash light emission unit 176, control of the discharge time, and the like. Note that a light emitting diode may be used as the flash light emitting unit 176.

  The imaging unit 112 captures a distance light emitting element 186 (for example, a light emitting diode) for irradiating the subject with light and an image of the subject irradiated with light by the distance light emitting element 186 (ranging image). A distance image sensor 184.

  The photometry / ranging CPU 180 causes the distance light emitting element 186 to emit light at a predetermined timing based on a command from the CPU 114 and controls the distance imaging element 184 to photograph a distance measuring image.

  The distance measurement image captured by the distance image sensor 184 is converted into digital data by the A / D converter 196 and input to the distance information processing circuit 198.

  The distance information processing circuit 198 uses the distance measurement image acquired from the distance image sensor 184 to connect between the subject photographed by the photographing units 112R and 112L and the digital camera 100 based on the principle of so-called triangulation. The distance (subject distance) is calculated. The subject distance calculated by the distance information processing circuit 198 is recorded in the distance information storage circuit 103.

  As a method for calculating the subject distance, the light flight time from when the distance light emitting element 186 emits light until the light emitted by the distance light emitting element 186 is reflected by the subject and reaches the distance imaging element 184 is used. A TOF (Time of Flight) method for calculating the subject distance from the (delay time) and the speed of light may be used.

  The photographing unit 112 includes an interval / convergence angle driving circuit 188 and an interval / convergence angle detection circuit 190.

  The interval / convergence angle driving circuits 188R and 188L drive the imaging units 112R and 112L, respectively. The CPU 114 operates the interval / convergence angle driving circuits 188R and 188L via the interval / convergence angle control circuit 192 to adjust the interval and the convergence angle between the photographing lenses 160R and 160L.

  The interval / convergence angle detection circuits 190R and 190L include means for transmitting and receiving radio waves, for example. The CPU 114 operates the interval / convergence angle detection circuits 190R and 190L via the interval / convergence angle control circuit 92 to transmit and receive radio waves, thereby measuring the interval and the convergence angle between the photographing lenses 160R and 160L. . The measurement results of the interval between the photographing lenses 160R and 160L and the convergence angle are stored in the lens interval / convergence angle storage circuit 102.

  The image sensor 162 is constituted by a color CCD solid-state image sensor, for example. A large number of photodiodes are two-dimensionally arranged on the light receiving surface of the image sensor 162, and color filters of three primary colors (R, G, B) are arranged in predetermined photodiodes on each photodiode. Yes. The optical image of the subject formed on the light receiving surface of the image sensor 62 by the photographing lens 160 is converted into signal charges corresponding to the amount of incident light by the photodiode. The signal charge accumulated in each photodiode is sequentially read out from the image sensor 162 as a voltage signal (R, G, B signal) corresponding to the signal charge based on a drive pulse given from the TG 164 according to a command from the CPU 114. The image sensor 162 has an electronic shutter function, and the exposure time (shutter speed) is controlled by controlling the charge accumulation time in the photodiode.

  As the image sensor 162, an image sensor other than a CCD such as a CMOS sensor can be used.

  The analog signal processing unit 166 outputs a correlated double sampling circuit (CDS), R, G, and B signals for removing reset noise (low frequency) included in the R, G, and B signals output from the image sensor 162. An AGS circuit for amplifying and controlling to a certain level is included. Analog R, G, and B signals output from the image sensor 162 are subjected to correlated double sampling processing and amplified by the analog signal processing unit 166. The analog R, G, and B signals output from the analog signal processing unit 166 are converted into digital R, G, and B signals by the A / D converter 168 and input to the image input controller (buffer memory) 170. The

  The digital signal processing unit 172 includes a synchronization circuit (a processing circuit that interpolates a spatial shift of a color signal associated with a color filter arrangement pixel of a single CCD and converts the color signal into a simultaneous expression), a white balance adjustment circuit, a floor A tone conversion processing circuit (gamma correction circuit), a contour correction circuit, a luminance / color difference signal generation circuit, and the like are included. Digital R, G, and B signals input to the image input controller 170 are subjected to predetermined processing such as synchronization processing, white balance adjustment, gradation conversion, and contour correction by the digital signal processing unit 172, It is converted into a Y / C signal composed of a luminance signal (Y signal) and a color difference signal (Cr, Cb signal).

  When the live view image (through image) is displayed on the 3D LCD 150, the Y / C signal generated in the digital signal processing unit 172 is sequentially supplied to the buffer memory 144. The display controller 142 reads the Y / C signal supplied to the buffer memory 144 and outputs it to the YC-RGB conversion unit 146. The YC-RGB conversion unit 146 converts the Y / C signal input from the display controller 142 into R, G, and B signals and outputs them to the 3D LCD 150 via the driver 148. Thereby, the through image is displayed on the 3D LCD 150.

  Here, when the camera mode is the shooting mode and in the 2D mode, a recording image is shot by a predetermined one shooting unit (for example, 112R). In the 2D mode, an image photographed by the photographing unit 112R is compressed by the compression / decompression processing unit 174R. The compressed image data is recorded on the memory card 34 as an image file in a predetermined format via the memory controller 134 and the card I / F 138. For example, JPEG (Joint Photographic Experts Group) for still images, MPEG2 or MPEG4 for moving images, and H.264. It is recorded as a compressed image file conforming to the H.264 standard.

  The camera mode is a shooting mode, and in the 3D mode, images are shot in synchronization by the shooting units 112R and 112L. In the 3D mode, AF processing and AE processing are performed based on the image signal acquired by one of the imaging units 112R and 112L. In the 3D mode, the two viewpoint images captured by the imaging units 112R and 112L are respectively compressed by the compression / decompression processing units 174R and 174L, stored in one 3D image file, and recorded on the memory card 34. The 3D image file stores subject distance information, information on the distance between the taking lenses 160R and 160L, information on the convergence angle, and the like, as well as compressed image data of two viewpoints.

  On the other hand, when the operation mode of the camera is the playback mode, the last image file (last recorded image file) recorded on the memory card 34 is read out, and the compression / decompression processing unit 174 performs uncompressed Y / After being expanded to the C signal, it is input to the buffer memory 144. The display controller 142 reads the Y / C signal supplied to the buffer memory 144 and outputs it to the YC-RGB conversion unit 146. The YC-RGB conversion unit 146 converts the Y / C signal input from the display controller 142 into R, G, and B signals and outputs them to the 3D LCD 150 via the driver 148. As a result, the image of the image file recorded on the memory card 34 is displayed on the 3D LCD 150.

  Here, when the image file read from the memory card 34 is a 2D image file, the main image and its associated information are read from the 2D image file in the same manner as the 3D image display device 10 described above, and [Table 1], a 2D image for display (first image) and an image of the attached information (second image) are generated, and these images are displayed on the 3D LCD 150 as four directional images. The

On the other hand, if the image file read from the memory card 34 is a 3D image file, the viewpoint images (1), (2) (left and right images) and their associated information are read from the 3D image file. As shown in [Table 1], a left image for 3D display, a right image (first image), and an image of the associated information (second image) are generated, and these images are used as four directional images. 3D
Further, by operating the DISP button of the operation unit 116 in the playback mode, a multi-image composed of reduced images (thumbnail images) of a plurality of images can be displayed on the 3D LCD 150.

  FIGS. 13 to 15 are rear views of a digital camera in which a multi-image composed of four frames of reduced images is displayed on the 3D LCD 150.

  The lower right image of the four divided multi-images is an image generated from a 3D image file, and the other three images are images generated from a 2D image file.

  As shown in FIG. 13, when the 3D LCD 150 is viewed from the front, the image generated from the 2D image file is displayed so as to be visible as a 2D image, and the image generated from the 3D image file is visible as a 3D image. Is displayed.

  In some cases, these 2D images and 3D images cannot be identified intuitively. In particular, when a single frame image becomes small like a multi-image, it becomes more difficult to identify them.

  In this case, the digital camera 100 is tilted left and right, and the 3D LCD 150 is viewed from the right as shown in FIG. 14, or the 3D LCD 150 is viewed from the left as shown in FIG. It is possible to intuitively identify whether an image is generated from a 2D image file or an image generated from a 3D image file.

  That is, when the 3D LCD 150 is viewed from the right as shown in FIG. 14, the image of the attached information of the 3D image is visually recognized from the lower right divided area where the image generated from the 3D image file is displayed. The 2D image is visually recognized from the other divided areas where the image generated from the file is displayed.

  Further, when the 3D LCD 150 is viewed from the left as shown in FIG. 15, the left image (2D image) of the 3D image is visually recognized from the lower right divided area where the image generated from the 3D image file is displayed. On the other hand, the attached information of the 2D image is visually recognized from another divided area where the image generated from the 2D image file is displayed (see [Table 2]).

  Thus, when the 3D LCD 150 is viewed from the left-right direction, the image viewed from the front changes depending on whether it is a 2D image or a 3D image, and thus each frame constituting a multi-image is an image generated from a 2D image file. Or an image generated from a 3D image file can be intuitively identified.

[Third embodiment of three-dimensional image display apparatus]
The 3D image display device of the third embodiment is different from that of the first and second embodiments in the second display information generated from the 3D image file, and can display 6 directional images simultaneously. It is different in that it has.

  That is, as shown in FIG. 16, as the second display information generated from the 3D image file, a normal 3D image (left image, right image) visually recognized when the 3D LCD is viewed from the front (FIG. 16A ) And a 3D image (left image, right image) obtained by shifting a normal 3D image to the left, which is visible when the 3D LCD is viewed from the right (shown in FIG. 16B) Second image) and a 3D image (left image, right image) obtained by shifting a normal 3D image to the right, which is visible when the 3D LCD is viewed from the left (the second image shown in FIG. 16C). These six directional images are displayed on the 3D LCD.

  Accordingly, when an image generated from the 3D image file is displayed on the 3D LCD, when the 3D LCD is viewed from the left-right direction, the image moves in the left-right direction. Images can be identified.

[Fourth Embodiment of 3D Image Display Device]
The 3D image display device of the fourth embodiment is different from the first to third embodiments in the first display information and the second display information generated from the 3D image file.

  That is, as shown in FIGS. 17A and 17B, an image (2D image) smaller than a normal image is generated as the first display information generated from the top image of the 3D image file. In this case, the appearance according to the viewing angle of the 3D LCD is not changed at this point.

  As the second display information displayed after a lapse of a predetermined time since the first display information is displayed, a normal 3D image (left image, right image) visually recognized when the 3D LCD is viewed from the front (FIG. 17A )) And a 3D image (left image, right image) (FIG. 18B) smaller than a normal 3D image, which is viewed when the 3D LCD is viewed from the right, and generates these directional images. Is displayed on the 3D LCD.

  As a result, when the 3D LCD is viewed from the front, the image (small 2D image) shown in FIG. 17A is switched to the image (normal size 3D image) shown in FIG. It can be intuitively identified that the image is generated from a file.

  Further, even after the display of the second display information, 3D images having different sizes depending on the viewing angle of the 3D LCD can be visually recognized, and thereby, it can be intuitively identified that the image is generated from the 3D image file.

[Others]
The 3D LCD of this embodiment uses a lenticular lens, but is not limited to this, and may use a parallax barrier. In short, 3D image display means capable of simultaneously displaying two or more directional images. Anything can be used.

  The plurality of directional images to be displayed on the 3D image display means may be any one that can distinguish between the 2D image and the 3D image due to the difference in appearance depending on the viewing angle in the left-right direction of the 3D image display means. It is not limited to the embodiment.

  It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 10 ... Three-dimensional image display apparatus (3D image display apparatus), 12, 150 ... Three-dimensional liquid crystal display (3D LCD), 20, 114 ... Central processing unit (CPU), 22, 128 ... Work memory, 26, 100 ... Digital Camera, 142 ... Display controller, 28, 136 ... Buffer memory, 30, 126 ... EEPROM

Claims (16)

3D image display means capable of simultaneously displaying two or more directional images having different directivities in the left and right directions;
For playback from a recording medium in which a two-dimensional image file in which a two-dimensional image is recorded and a three-dimensional image file in which a three-dimensional image composed of a plurality of images taken from the same subject is recorded are mixed. Image acquisition means for acquiring the image file of
Determining means for determining whether the image file acquired by the image acquiring means is a two-dimensional image file or a three-dimensional image file;
When the acquired image file is determined to be a two-dimensional image file by the determining means, a plurality of first directivities including a directional image for two-dimensional display that is simultaneously displayed based on images in the two-dimensional image file. When a sex image is generated and determined to be a 3D image file, a plurality of second orientations including a 3D display directivity image having parallax to be displayed simultaneously based on the images in the 3D image file Display image generating means for generating a sex image;
Display control means for causing the three-dimensional image display means to display a two-dimensional image or a three-dimensional image based on the first directivity image or the second directivity image generated by the display image generation means. ,
The display image generation means displays at least one directional image of the first directional image and the second directional image from an image in which the three-dimensional image display means is viewed from the front and a left-right direction. A three-dimensional image display device, characterized in that the image is generated so that an image that is visually recognized is different.   The first directional image or the second directional image generated by the display image generating means is a two-dimensional image or a three-dimensional image, respectively, when the three-dimensional image display means is viewed from the front. The three-dimensional image display device according to claim 1, comprising a first image to be visually recognized.   The first directional image or the second directional image generated by the display image generating unit is different from the first image when the three-dimensional image display unit is viewed from the left-right direction. The three-dimensional image display device according to claim 2, comprising a second image that is visually recognized as an image.   The second image included in the first directional image or the second directional image generated by the display image generating means is attached to the two-dimensional image file or the three-dimensional image file recorded together with the image. The three-dimensional image display device according to claim 3, wherein the three-dimensional image display device is an image for displaying information.   The second image included in the second directivity image generated by the display image generating means is a three-dimensional image viewed from the front by the three-dimensional image display means on the three-dimensional image display means. The three-dimensional image display device according to claim 3, wherein the three-dimensional images are different three-dimensional images with different display positions in the left-right direction.   The determination unit determines whether the image file is a two-dimensional image file or a three-dimensional image file based on an extension of the image file or attached information stored in the image file. The three-dimensional image display device according to any one of 5.   The display image generation unit generates a plurality of reduced images based on the plurality of image files acquired by the image acquisition unit, and multi-images for one screen in which the plurality of reduced images are arranged in a matrix. Multi-image generating means for generating the reduced image constituting the multi-image, the first directional image according to whether the image file corresponding to each reduced image is a two-dimensional image file or a three-dimensional image file. Alternatively, the three-dimensional image display device according to claim 1, wherein the three-dimensional image display device is generated as a second directional image. The three-dimensional image file is a multi-picture file in which one or a plurality of images are continuously stored following the head image.
The display image generating means reads out an image from the acquired two-dimensional image file, and also reads out a first image reading means for reading a head image from the three-dimensional image file, and the acquired image file is a three-dimensional image file. If it is discriminated, the second image reading means reads out images other than the head image or all images including the head image from the three-dimensional image file, and is read out by the first image reading means. A first directional image for two-dimensional display is generated based on the obtained image, and when the acquired image file is determined to be a three-dimensional image file, the first image read by the first image reading means And a non-leading image read by the second image reading means, or all images read by the second image reading means. It generates two directional images,
The display control means displays a two-dimensional image on the three-dimensional image display means on the basis of the generated first directivity image, and when the second directivity image is generated, the two-dimensional image The three-dimensional image according to any one of claims 1 to 7, wherein a three-dimensional image is displayed on the three-dimensional image display means on the basis of the second directional image after a predetermined time has elapsed since the display. Display device. In a three-dimensional image display method for displaying a two-dimensional image or a three-dimensional image on a three-dimensional image display means capable of simultaneously displaying two or more directional images having different directivities in the left-right direction,
For playback from a recording medium in which a two-dimensional image file in which a two-dimensional image is recorded and a three-dimensional image file in which a three-dimensional image composed of a plurality of images taken from the same subject is recorded are mixed. Obtaining an image file of
Determining whether the acquired image file is a two-dimensional image file or a three-dimensional image file;
When the acquired image file is determined as a two-dimensional image file, a plurality of first directional images including a directional image for two-dimensional display to be displayed simultaneously based on the images in the two-dimensional image file are generated. When it is determined as a three-dimensional image file, a plurality of second directional images including a directional image for three-dimensional display having parallax to be displayed simultaneously based on the images in the three-dimensional image file are generated. And a process of
Displaying a two-dimensional image or a three-dimensional image on the three-dimensional image display means based on the generated first directional image or second directional image,
In the step of generating the display image, the directional image of at least one of the first directional image and the second directional image is converted into a left-right image and an image viewed from the front by the three-dimensional image display means. A three-dimensional image display method, wherein the image is generated so that an image viewed from a direction is different.   When the three-dimensional image display means is viewed from the front, the generated first directivity image or second directivity image is first viewed as a two-dimensional image or a three-dimensional image, respectively. The three-dimensional image display method according to claim 9, further comprising an image.   The generated first directivity image or second directivity image is visually recognized as an image different from the first image when the three-dimensional image display means is viewed from the left-right direction. The three-dimensional image display method according to claim 10, comprising two images.   The second image included in the generated first directional image or second directional image is used for displaying attached information recorded together with the image in the two-dimensional image file or the three-dimensional image file. The three-dimensional image display method according to claim 11, wherein the method is an image.   The second image included in the generated second directivity image is a display position in the left-right direction on the three-dimensional image display means, which is a three-dimensional image viewed from the front by the three-dimensional image display means. The three-dimensional image display method according to claim 11, wherein the three-dimensional images are different from each other.   10. The determining step includes determining whether the image file is a two-dimensional image file or a three-dimensional image file based on an extension of the image file or attached information stored in the image file. 14. The three-dimensional image display method according to any one of items 13 to 13.   The step of generating the display image generates a plurality of reduced images based on the acquired plurality of image files, and generates a multi-image for one screen in which the plurality of reduced images are arranged in a matrix. Each of the reduced images constituting the multi-image according to whether the image file corresponding to each reduced image is a two-dimensional image file or a three-dimensional image file. The three-dimensional image display method according to claim 9, wherein the three-dimensional image display method is generated as a sex image. The three-dimensional image file is a multi-picture file in which one or a plurality of images are continuously stored following the head image.
The step of generating the display image includes a first image reading step of reading an image from the acquired two-dimensional image file and reading a head image from the three-dimensional image file, and the acquired image file is a three-dimensional image. A second image reading step of reading an image other than the head image or all images including the head image from the three-dimensional image file when it is determined as a file, and reading out by the first image reading step. A first directional image for two-dimensional display is generated based on the obtained image, and when the acquired image file is determined to be a three-dimensional image file, the head read by the first image reading step A three-dimensional table based on an image and an image other than the top image read by the second image reading step, or all images read by the second image reading step Generating a second directional images of use,
In the step of displaying the two-dimensional image or the three-dimensional image, the two-dimensional image is displayed on the three-dimensional image display means on the basis of the generated first directivity image, and the second directivity image is generated. The three-dimensional image is displayed on the three-dimensional image display unit based on the second directivity image after a predetermined time has elapsed since the display of the two-dimensional image. The three-dimensional image display method according to any one of the above.

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