JP2004274485A - Stereoscopic image generating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stereoscopic image generating apparatus which can remarkably enhance a real time property of displaying a stereoscopic image. <P>SOLUTION: The stereoscopic image generating apparatus includes a compositing means for reading and compositing the parallactic images recorded in a recording means and corresponding to n pieces of parallactic angles, a frame buffer for writing the composited image, and an output means for outputting the composite image written in the frame buffer to an n-ocular stereoscopic image display means having a stereoscopic display element for generating n-ocular parallax from the composite image via a barrier having a predetermined shape. The parallactic image has a parallactic image number indicating the corresponding parallactic angle and coordinates for specifying the image position. The compositing means selects the color components of one pixel necessary for the composite image from the n pixels for constituting the parallactic images based on a predetermined stereoscopic image format based on the barrier shape of the stereoscopic display element, and composites the selected color components so as to coincide with the coordinates on the original parallactic image. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a stereoscopic image generation device. In particular, the present invention relates to a stereoscopic image generation device in a stereoscopic image display device capable of observing n-eye stereoscopic vision.
[0002]
[Prior art]
2. Description of the Related Art In recent years, a stereoscopic image display device that allows a viewer to perform stereoscopic observation without using a special instrument has been developed. The principle of such a stereoscopic image display device utilizes binocular parallax generated by the distance between the right eye and the left eye, and displays different parallax images for the right eye and the left eye on a stereoscopic display element (display) having a lenticular or parallax barrier. By giving it, the observer feels stereoscopic vision.
[0003]
Extending this principle, an n-eye stereoscopic image display device can be obtained by giving different parallax images for the right and left eyes for each of the viewing angles to the stereoscopic display elements corresponding to a plurality of viewing angles.
[0004]
FIG. 1 is a diagram illustrating a specific example of a parallax image. S = 0 to 3 are collections of images having different parallax angles when observing an object in a three-dimensional space while changing the viewing direction. Each image is a group of pixels having coordinates x and y, which are constituted by RGB components which are three primary colors of light.
[0005]
Such a parallax image can be generated by calculating and imaging a three-dimensional space virtually modeled by computer graphic (CG) technology, or by digitizing an image captured by a video camera or the like.
[0006]
In the stereoscopic image display device, such a group of parallax images is decomposed at the color component level, and an image synthesized according to different rules depending on the barrier shape of the stereoscopic display element (display) is displayed on the stereoscopic display element, so that the viewer can see the stereoscopic image. A typical image can be sensed (for example, Patent Document 1). The rule that varies depending on the barrier shape is referred to as a stereoscopic image format in the following description.
[0007]
Therefore, in the stereoscopic image display device, a process of converting the parallax image data into a stereoscopic image format corresponding to the stereoscopic display element using the parallax image data is required. As a method of this processing, for example, there is a method of once writing pixels of a parallax image in a frame buffer, and then reassembling color components so as to conform to a stereoscopic image format (for example, Patent Document 2).
[0008]
[Patent Document 1]
Japanese Patent No. 3096613
[Patent Document 2]
JP-A-2002-77940
[Problems to be solved by the invention]
However, in the conventional processing method of converting parallax image data into a stereoscopic image format as described in Patent Literature 2, the number of accesses to a frame buffer increases, and the real-time property of stereoscopic image display may be impaired.
[0011]
Accordingly, an object of the present invention is to significantly reduce the access to the frame buffer, to obtain a significant performance improvement in both the bandwidth and the capacity, and as a result, to improve the real-time property of the stereoscopic image display dramatically. An image generation device is provided.
[0012]
[Means for Solving the Problems]
A first aspect of a stereoscopic image generating apparatus according to the present invention that achieves the above object is to read and combine n parallax images recorded in a recording unit and corresponding to n parallax angles from the recording unit. Combining means;
A frame buffer in which the synthesized image is written;
Output means for outputting the synthesized image written in the frame buffer to an n-eye stereoscopic image display means having a stereoscopic display element for generating n-eye parallax from the synthesized image by a barrier having a predetermined shape; And
The parallax image has a parallax image number indicating a corresponding parallax angle, and coordinates specifying an image position,
The synthesizing unit includes a parallax image number and coordinates, and a predetermined stereoscopic image format based on a barrier shape of the stereoscopic display element. It is characterized in that a color component for one pixel is selected, and the selected color component is synthesized so as to match the coordinates on the original parallax image.
[0013]
According to a second aspect of the stereoscopic image generating apparatus according to the present invention that achieves the above object, in the first aspect, the synthesizing unit includes: a table in which a combination of the parallax image number and the coordinates is set; It is characterized by having means for selecting a color component necessary for the stereoscopic image format according to the obtained combination.
[0014]
According to a third aspect of the stereoscopic image generating apparatus according to the present invention that achieves the above object, in the first aspect, the frame buffer has three banks corresponding to each of RGB colors. It is characterized by having a display controller which generates horizontal and vertical synchronizing signals and addresses synchronizing therewith to access the three banks in common.
[0015]
A fourth aspect of the stereoscopic image generation apparatus according to the present invention that achieves the above object is a recording apparatus, which records a parallax image number corresponding to n parallax angles, a parallax image number indicating the corresponding parallax angle, and an image position. Reading means for reading n parallax images having coordinates to be specified from the recording means;
RGB of the parallax image based on the parallax image number and coordinates, and a predetermined stereoscopic image format based on the barrier shape of the stereoscopic display element that generates n-eye parallax from the composite image by a barrier having a predetermined shape. Image generation means for selecting a color component for one pixel required for the stereoscopic image format from among n pixels constituting each parallax image for each color, and outputting an address, and output from the image generation means A frame buffer having three banks corresponding to each color of RGB in which the selected parallax image is written at an address, horizontal and vertical synchronizing signals of the three-dimensional display element, and synchronizing therewith to access the three banks in common It has a display controller for generating an address.
[0016]
According to a fifth aspect of the stereoscopic image generation apparatus according to the present invention that achieves the above object, in the fourth aspect, the image generation unit includes: a table in which a combination of the parallax image number and coordinates is set; And a means for selecting a color component necessary for the stereoscopic image format according to a combination obtained from the above.
[0017]
A sixth aspect of the stereoscopic image generating apparatus according to the present invention that achieves the above object is a parallax image number recorded in a recording unit, corresponding to n parallax angles, and indicating a corresponding parallax image number and an image position. Reading means for reading n parallax images having coordinates to be specified from the recording means;
Based on the parallax image number and coordinates, and a predetermined stereoscopic image format based on the barrier shape of the stereoscopic display element that generates n-eye parallax from the composite image by a barrier having a predetermined shape, Image generation means for selecting any of the plurality of parallax images and outputting an address;
A frame buffer in which the selected RGB color of the plurality of parallax images is written to an address output from the image generation unit;
A horizontal / vertical synchronization signal of the stereoscopic display element, and a display controller for reading out and controlling the written RGB colors from a display coordinate of the stereoscopic display element and an address of the frame buffer corresponding to the coordinate. When,
Means for buffering RGB colors output from the display controller in correspondence with the plurality of parallax angles, based on display coordinates of the stereoscopic display element output from the display controller;
Based on display coordinates of the three-dimensional display element output from the display controller, an RGB color output from the buffering unit is selected for each of the RGB colors corresponding to any of the plurality of parallax angles. It is characterized by having image regenerating means.
[0018]
Further, in a seventh aspect of the stereoscopic image generating apparatus according to the present invention for achieving the above object, in the sixth aspect, the image regenerating means sets a combination of color component selection and display of the three-dimensional display element. And a means for selecting a color component necessary for the stereoscopic image format according to a combination obtained from the table.
[0019]
The features of the present invention will become more apparent from the embodiments of the present invention described below with reference to the drawings.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, as an embodiment of the present invention, a case where stereoscopic display using four viewing angles is performed will be described. However, the application of the present invention is not limited to the case of using four viewing angles, and the present invention is applied so as to correspond to a stereoscopic image format required by a stereoscopic display element, thereby enabling at least one n-eye type. Applicable to
[0021]
In the following description, it is assumed that the respective parallax image numbers are S = 0 to 3 as parameters for distinguishing four parallax images corresponding to four viewing angles. Each parallax image has the same number of pixels as the resolution of the stereoscopic display element (display).
[0022]
The stereoscopic image generating apparatus according to the present invention has a function of converting a stereoscopic image format required by the stereoscopic display element, for example, an image format shown in FIG.
[0023]
FIG. 3 is a block diagram of a stereoscopic image generation device according to the present invention. In FIG. 3, a block 1 is a stereoscopic image generating apparatus according to the present invention, in which a parallax image 10 is given as an input, a stereoscopic image format shown in FIG. 2 is generated, and is repeatedly output to a corresponding stereoscopic display element 11. A stereoscopic image is displayed. In FIG. 3, arrows between blocks indicate the flow of data.
[0024]
As shown in FIG. 1, four parallax images 10 corresponding to four viewing angles are input to the color buffer 100 of the stereoscopic image generation device 1. Here, as described above, the parallax image 10 can be created by calculating a three-dimensional space virtually modeled by the CG technique and converting it into an image, or by digitizing an image captured by a video camera or the like. Therefore, the formation of such a parallax image is not directly related to the present invention, and a description of a method of forming the parallax image is omitted.
[0025]
FIG. 4 shows an embodiment of the color buffer 100. Each pixel RGB of the parallax image shown in FIG. 1 is input to the color buffer 100 together with a parallax image number S as a parameter and coordinates x and y on the parallax image.
[0026]
The input pixels RGB are input to the decoder 101 and are stored at corresponding positions of the color buffer memory 102 determined according to the coordinates x. As a result, parallel conversion is performed so that four pixels continue in the x direction. If the parallax image 10 is input in this state from the beginning, the color buffer memory 102 can be omitted.
[0027]
When the pixel is subjected to parallel conversion by the decoder 101, the coordinates x and y and the parallax image number S when the coordinate x is a multiple of 4 are buffered in the corresponding buffer memories 103, 104 and 105, respectively. Here, as long as the order of the input pixels is within a range in which the parallel conversion is normally performed, there is no limitation on the coordinates of the input pixels and the order of the parallax image numbers.
[0028]
Next, the input pixels are output from the color buffer memory 100 together with the coordinates x and y and the parallax image number S for each color component after the parallel conversion is completed. The pixels separated for each color component are shown as R0 to R3, G0 to G3, and B0 to B3 in association with the x coordinates of the original pixels, respectively, as shown in FIG.
[0029]
FIG. 5 shows the stereoscopic image generation unit 110, which is a central part of the present invention. The stereoscopic image generation unit 110 uses the color components R0 to R3, G0 to G3, and B0 to B3 input in parallel from the color buffer memory 100 in FIG. Is selected and output so as to match.
[0030]
At this time, an address to be stored on the frame buffer 120 is generated until the color component selected and output is displayed. This process is performed for each of the R, G, and B color components. Therefore, as shown in FIG. 5, pixel generators 111, 112, and 113 are provided for each of the R, G, and B color components. Since each of the pixel generators 111, 112, and 113 has essentially the same configuration, the details of the pixel generator 111 corresponding to the R component shown in FIG. 6 will be described below as a representative.
[0031]
The actual color component selection and address generation are performed in the address generation unit 111c based on the coordinates Tr, the coordinates x and y and the parallax image number S, and the value Tr with reference to a table value preset in the table 111a.
[0032]
According to the well-known principle of the three-dimensional display element, the selected color component is one pixel out of four pixels input in parallel, and the address stored in the frame buffer 120 is the original parallax image of the selected color component. Generate so that the coordinates are the same as the coordinates above. Thus, the data can be stored in the frame buffer 120 without overlapping with the processing results of other pixels.
[0033]
FIG. 7 is an example of a truth table of an output Tr from the table 111a. The output Tr is set corresponding to the combination of the coordinate y and the parallax image number S. In this embodiment, the coordinate x is not related to the determination of the output Tr, but more generally, the coordinate x is also related.
[0034]
In FIG. 7, the same applies to the corresponding pixel generators 112 and 113 for the other color components G and B, and the output Tg from the table in the pixel generators 112 and 113 corresponding to the table 111a of the pixel generator 111, An example of the truth value of Tb is also shown.
[0035]
According to the output Tr, one pixel is selected by the 4-to-1 selector 111b from among R0, R1, R2, and R3 for four pixels corresponding to the parallax image numbers S = 0 to 3 in the R component. FIG. 8A in FIG. 8 is a truth table of the output R output from the selector 111b. Similarly, FIGS. 8B and 8C are truth tables of outputs G and B output from selectors corresponding to the selector 111b in the corresponding pixel generators 112 and 113 for the other color components G and B, respectively.
[0036]
Next, the address generator 111c generates and outputs an address Ar according to the following relational expression as a function of x, y, and T.
[0037]
Ar (x, y, Tr) = w × y + x + Tr
Here, w is a constant and is the x size of the parallax image, and x is a multiple of 4 at the output stage from the color buffer 100. Similar processing is performed for the pixel generators 112 and 113, except that the outputs from the table are Tg and Tb.
[0038]
At this stage, color components that do not need to be included in the pixels to display the stereoscopic image are removed. For this reason, compared to a conventional system in which pixels of a parallax image are written to the frame buffer 120 and then color components are reconfigured to match the stereoscopic image format, access to the frame buffer 120 is greatly reduced, and both bandwidth and capacity are greatly increased. It can be easily understood that the performance improvement is obtained. This makes it possible to dramatically improve the real-time property of displaying a stereoscopic image.
[0039]
The table 111a can be arbitrarily reset by configuring the table 111a with a memory. For this reason, in the system to which the present invention is applied, the adopted stereoscopic display element (display) is changed, and accordingly, the required stereoscopic image format is changed, or a general display not intended for stereoscopic display is used. Even for this, it is possible to easily cope with the situation by resetting the table 111a.
[0040]
Furthermore, depending on the observer's observation position, a parallax image to be observed by each of the left and right eyes may be in a state called reverse vision, but Tr, Tg, and Tb are changed depending on the observer's observation position. This pseudoscopic state can be corrected by dynamically modifying the output table.
[0041]
FIG. 18 shows the result of performing the above processing for all the pixels of all the parallax images, and this is the drawing state of the frame buffer 120.
[0042]
Here, in FIG. 18, as shown in FIGS. 18A, 18B, and 18C, the frame buffer 120 stores the R, G, and B color components processed by the stereoscopic image generation unit 110 in FIG. Are composed of three banks corresponding to the color components of.
[0043]
The reason why the banks are independent in this way is to cope with the fact that the address to be recorded differs for each color component as a result of processing by the stereoscopic image generation unit 110.
[0044]
In FIG. 18, it can be seen that the same state as the stereoscopic image format shown in FIG. 2 is obtained by extracting the color components of the same coordinates from each bank.
[0045]
In FIG. 2, for example, R000, G001, and B002 are stored at buffer positions corresponding to coordinates (x, y) = 0, 0. When this is compared with the parallax image of FIG. 1, R000 is the R component included in the pixel of the coordinates (x, y) = 0, 0 of the parallax number S = 0, and G001 is the coordinate (x , Y) = 0, 0, and B002 is a B component included in the pixel of coordinates (x, y) = 0, 0 of the parallax number S = 2.
[0046]
FIG. 9 shows an embodiment of the display controller 130. In the display controller 130, the HV counter 131 periodically counts up in response to the horizontal-vertical synchronization signal, and the horizontal and vertical synchronization signals H-Sync and V-Sync required for display on the stereoscopic display element 11 are displayed. The display coordinates h and v are converted by the read interface 132 into addresses (Ar, Ag, Ab) on the frame buffers 120 of the three banks shown in FIG. 2, and the color components RGB of the corresponding addresses are read.
[0047]
Here, Ar = Ag = Ab = w × v + h where w is a constant and is the x size of the visual field coordinates.
[0048]
As described above, the address is common across three banks. The read pixels RGB are output to the three-dimensional display element 11 together with the synchronization signal, and display a three-dimensional image to an observer.
[0049]
Here, in the stereoscopic image generating apparatus shown in FIG. 5, the color components stored at the same address in each of the three banks are output on the stereoscopic display element 11 as if they are the color components constituting the pixels of the same coordinates. I have to.
[0050]
For this reason, since the pixels are arranged in the stereoscopic image format required by the stereoscopic image display element 11 at the stage of storage in the frame buffer 120, each bank of the frame buffer 120 is Thus, the observer can observe the stereoscopic image only by giving the same address in order and outputting the read color component to the stereoscopic image display element 11.
[0051]
Here, in the above-described embodiment, since the frame buffer 120 has a three-bank configuration, there is a problem that the number of memory elements and a bus for accessing the memory elements increase.
[0052]
Therefore, an embodiment in which the frame buffer 120 is constituted by one bank will be discussed below. FIG. 10 is a block diagram showing a configuration of the stereoscopic image generation device 1 having a configuration in which the frame buffer 120 is used as one bank.
[0053]
From the principle of a well-known stereoscopic display element, only one R, G, and B color component is extracted from each of four consecutive pixels in the x direction belonging to the same parallax image. For this reason, three R, G, and B color components generated by the stereoscopic image generation unit 110 shown in FIG. 3 are collectively recorded at the same address on the frame buffer.
[0054]
More specifically, three color elements generated by the stereoscopic image generation unit 110 in FIG. 5 are stored together at the same address on the frame buffer 120, and FIG. Configuration.
[0055]
In the embodiment of the stereoscopic image generation device 1 in FIG. 10 instead of the stereoscopic image generation unit 110 in FIG. 5, the stereoscopic image generation unit 110 is configured as shown in FIG. The stereoscopic image generation unit 110 in FIG. 11 includes an address generator 114 and pixel generators 111, 112, and 113 corresponding to each of R, G, and B color components.
[0056]
Since each of the pixel generators 111, 112, and 113 has essentially the same configuration, the configuration of the pixel generator 111 corresponding to the R component is representatively shown in FIG. The pixel generator 111 is basically the same as that of the embodiment shown in FIG. 6, but has an independent address generator 114 as described above, so that each pixel generator has an address generator 111c. Not required. The table 111a and the 4-to-1 selector 111b are the same as those described with reference to FIG. The same applies to the G and B components.
[0057]
Here, the address A output from the address generator 114 in the stereoscopic image generation unit 110 in FIG. 11 is obtained by adding an offset based on the parallax image number of the parallax image to the x-coordinate of the input pixel as follows. Ask for.
[0058]
A = w ^* y + x + S
Here, w is a constant and is the x size of the parallax image, and x is a multiple of 4 at the output stage from the color buffer 100.
[0059]
FIG. 13 shows a drawing state of the frame buffer 120 after processing all the pixels of the all-parallax image in the stereoscopic image generation device 1 of FIG. As shown in FIG. 13, the frame buffer 120 has a one-bank configuration.
[0060]
Here, it is important that by rearranging the color components included in the four pixels continuous in the x direction, a state equivalent to the frame buffer in FIG. 2 can be created. The color components are selected from the four pixels so as to conform to the stereoscopic image format and output to the stereoscopic display element 11.
[0061]
In the embodiment of FIG. 10, the display controller 130 is configured as shown in FIG. 14 to perform such control. In FIG. 14, in the display controller 130, the HV counter 131 counts up periodically, and generates synchronization signals H-Sync, V-Sync and display coordinates h, v necessary for display of the three-dimensional display element. I have.
[0062]
The display coordinates h and v are converted by the read interface 132 into an address A on the frame buffer 120 having a one-bank configuration shown in FIG. 13, and the pixel RGB of the corresponding address is read from the frame buffer 120.
[0063]
Here, A = w × v + h where w is a constant and is the x size of the visual field coordinates.
[0064]
The read coordinates RGB are added again to the read pixels RGB by the read interface 132 and output to the display buffer 140. The synchronization signal is output in consideration of the latency until the pixel is output to the stereoscopic display element 11.
[0065]
FIG. 15 is a configuration example of the display buffer 140. The input pixels RGB pass through the decoder 141 and are stored in the buffer 142 corresponding to the input display coordinates h, so that four pixels are continuously converted in the h direction. The buffer 142 is composed of a plurality of banks, buffers the time required to read out the pixels from the frame buffer 120, and also has a role of continuously outputting the pixels to the subsequent stage.
[0066]
The display coordinates h and v when the coordinate h is a multiple of 4 when the pixel is parallel-converted are also buffered in the buffers 143 and 144, respectively. The pixels separated for each color component are R0 to R3, G0 to G3, and B0 to B3, respectively, corresponding to the h coordinate of the original pixel.
[0067]
FIG. 16 is a configuration example of the stereoscopic image regenerating unit 150. The stereoscopic image regenerating unit 150 converts the color components R0 to R3, G0 to G3, B0 to B3 input in parallel from the display buffer 140 of FIG. Are output while being selected by selectors 151, 152, and 153.
[0068]
Four pixels can be output to the three-dimensional display element 11 with one input, and a new input is repeatedly obtained from the color buffer 100 every time four pixels are output. In the stereoscopic image regenerating unit 150, selection of a color component is performed for each color component. Since the selectors 151, 152, and 153 corresponding to the RGB components are essentially the same, FIG. 17 shows the configuration of only the R component as a representative.
[0069]
The actual selection of the color components is performed by the 4-to-1 selector 151 referring to the table values of the table 151a by the display coordinates h and v input together with the color components R0 to R3. Similar processing is performed for the G and B components, except that the output from the table is different.
[0070]
These tables can be set arbitrarily. In addition, by setting such a table, it is possible to perform a response in the case where the stereoscopic display element 11 is changed and a correction of the reverse viewing state by the same mechanism as that of the stereoscopic image generating apparatus 1 in FIG.
Finally, the stereoscopic display element 11 displays a stereoscopic image to an observer based on the synchronization signals h and v output from the display controller 130 and the color components output from the stereoscopic image regenerating unit 150 in FIG. Can be.
[0071]
In addition, in the above-described embodiment, in writing and reading data to and from the frame buffer, different offsets are added to the addresses to be accessed, and the offsets are appropriately controlled to wait for the reading for display to be completed. If the configuration is such that the next and subsequent frames can be drawn at another address on the frame buffer without further processing, the real-time property of stereoscopic image display can be further enhanced.
[0072]
【The invention's effect】
As described above, the embodiment of the present invention has been described with reference to the drawings. Therefore, the access to the frame buffer is significantly reduced from the stereoscopic image generating apparatus according to the present invention, and a significant performance improvement is obtained. It is possible to provide a stereoscopic image display device that can dramatically improve the stereoscopic image display device.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a specific example of a parallax image.
FIG. 2 is a diagram illustrating an example of a stereoscopic image format.
FIG. 3 is a block diagram of a stereoscopic image generation device according to the present invention.
FIG. 4 is a configuration of an embodiment of a color buffer 100;
FIG. 5 is a diagram showing a stereoscopic image generation unit 110.
FIG. 6 is a diagram illustrating a configuration of a pixel generator 111 corresponding to an R component.
FIG. 7 is an example of a truth table of a table output of the pixel generators 111, 112, and 113;
FIG. 8 is an example of a truth table of selector outputs of the pixel generators 111, 112, and 113.
FIG. 9 shows an embodiment of a display controller.
FIG. 10 is a configuration block diagram of a stereoscopic image generation device 1 configured to use a frame buffer as one bank.
FIG. 11 is a diagram showing a configuration of a stereoscopic image generation unit 110.
FIG. 12 is a diagram illustrating a configuration of a pixel generator 111 corresponding to an R component.
13 is a diagram illustrating a drawing state of a frame buffer 120 after processing all pixels of an all-parallax image in the stereoscopic image generation device 1 in FIG.
FIG. 14 is a diagram showing a configuration of a display controller 130.
15 is a configuration example of a display buffer 140. FIG.
FIG. 16 is a diagram illustrating a configuration example of a stereoscopic image regenerating unit 150.
FIG. 17 is a diagram illustrating a configuration of a selector for an R component.
FIG. 18 is a diagram illustrating a drawing state of the frame buffer 120 as a result of performing the process on all pixels of all parallax images.
[Explanation of symbols]
Reference Signs List 10 parallax image 11 stereoscopic display element 100 color buffer 110 stereoscopic image generating unit 120 frame buffer 130 display controller 140 display buffer 150 stereoscopic image regenerating unit

Claims (7)

Combining means for reading n parallax images recorded in the recording means and corresponding to the n parallax angles from the recording means and combining them,
A frame buffer in which the synthesized image is written;
Output means for outputting the synthesized image written in the frame buffer to an n-eye stereoscopic image display means having a stereoscopic display element for generating n-eye parallax from the synthesized image by a barrier having a predetermined shape; And
The parallax image has a parallax image number indicating a corresponding parallax angle, and coordinates specifying an image position,
The synthesizing unit includes a parallax image number and coordinates, and a predetermined stereoscopic image format based on a barrier shape of the stereoscopic display element. A stereoscopic image generation apparatus characterized in that a color component for one pixel is selected, and the selected color component is synthesized so as to match the coordinates on the original parallax image. 2. The method according to claim 1, wherein the synthesizing unit selects a table in which a combination of the parallax image number and coordinates is set, and a color component necessary for the stereoscopic image format according to a combination obtained from the table. Stereoscopic image generation device. 2. The frame buffer according to claim 1, wherein the frame buffer has three banks corresponding to respective colors of RGB.
Further, a stereoscopic image generating apparatus is provided with a display controller for generating horizontal and vertical synchronizing signals of the stereoscopic display element and an address synchronized with the horizontal and vertical synchronizing signals to access the three banks in common. Reading means for reading from the recording means n parallax images recorded in the recording means, corresponding to the n parallax angles, and having a parallax image number indicating the corresponding parallax angle and coordinates specifying the image position; ,
RGB of the parallax image based on the parallax image number and coordinates, and a predetermined stereoscopic image format based on the barrier shape of the stereoscopic display element that generates n-eye parallax from the composite image by a barrier having a predetermined shape. Image generation means for selecting a color component for one pixel required for the stereoscopic image format from among n pixels constituting each parallax image for each color, and outputting an address;
A frame buffer having three banks corresponding to each of RGB colors in which the selected parallax image is written at an address output from the image generation unit;
A stereoscopic image generation apparatus, comprising: a display controller that generates horizontal and vertical synchronization signals of the stereoscopic display element and an address synchronized with the horizontal and vertical synchronization signals to access the three banks in common. In claim 4,
The image generating means has a table in which a combination of the parallax image number and coordinates is set, and a means for selecting a color component necessary for the stereoscopic image format according to a combination obtained from the table. Stereoscopic image generation device. Reading means for reading from the recording means n parallax images recorded in the recording means, corresponding to the n parallax angles, and having a parallax image number indicating the corresponding parallax angle and coordinates specifying the image position; ,
Based on the parallax image number and coordinates, and a predetermined stereoscopic image format based on the barrier shape of the stereoscopic display element that generates n-eye parallax from the composite image by a barrier having a predetermined shape, Image generation means for selecting any of the plurality of parallax images and outputting an address;
A frame buffer in which the selected RGB color of the plurality of parallax images is written to an address output from the image generation unit;
A horizontal / vertical synchronization signal of the stereoscopic display element, and a display controller for reading out and controlling the written RGB colors from a display coordinate of the stereoscopic display element and an address of the frame buffer corresponding to the coordinate. When,
Means for buffering RGB colors output from the display controller in correspondence with the plurality of parallax angles, based on display coordinates of the stereoscopic display element output from the display controller;
Based on display coordinates of the three-dimensional display element output from the display controller, an RGB color output from the buffering unit is selected for each of the RGB colors corresponding to any of the plurality of parallax angles. A stereoscopic image generation device comprising an image regenerating unit. In claim 6,
The image regenerating unit has a table in which a combination of color component selection and display coordinates of the three-dimensional display element is set, and a unit that selects a color component necessary for the three-dimensional image format according to a combination obtained from the table. A stereoscopic image generation device, characterized in that:

Images