JP2006071681A - Image display system, optical projection display device, program and method for controlling optical projection display device display data processing apparatus and method for controlling program and display data processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a preferable image display system for displaying to overlay two projection images, using a projection display device. <P>SOLUTION: The image display system 1 includes a first projector 2, capable of processing display data and capable of light projecting an image corresponding to the display data, a second projector 3 capable of light projecting an image corresponding to display data, and a screen 4 for displaying light projected images. Furthermore, the first projector 2 and the second projector 3 are connected to be mutually communicating by a communication cable 100. In the first projector 2, the display data after processing are transmitted to the second projector 3 via the communication cable 100, and the images of the display data after processing light projected by the first projector 2 and the second projector 3 are displayed by being overlaid on the screen 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data display system suitable for displaying two projected images in an overlapping manner using a projection display device.

  Announcements that use a light projection display device such as a data projector to display new product images and new project schedules on a screen, and then make presentations while showing the displayed images to the audience There is a form. In such a form of presentation, for example, when people from a plurality of companies gather to make a product announcement, display data created by various tools is provided for each presenter of each company. Then, according to the order of presentation, each presenter operates a PC connected to the light projection type display device and activates application software corresponding to the display data held by each person, thereby displaying the display data on the screen. The corresponding image is optically projected and displayed. In other words, when the application software is started, the display data is converted into a video signal by, for example, a video card provided in the PC, and the display data converted into the video signal is input to the light projection display device, thereby displaying the display data. The corresponding image is optically projected and displayed on the screen by the projection function of the projection display device. The presenter proceeds with the presentation while pointing the display data displayed by light projection in this way with a mouse cursor, a laser pointer, or the like.

  In such a presentation, there may be a demand for displaying the display data of two different companies side by side or displaying them in a superimposed manner. For example, it is a case where an image of a product of company A (tea cup) and an image of a product of company B (tea saucer) are desired to be displayed on the screen. In such a case, when two pieces of display data are displayed by being superimposed on one projection display device, it is necessary to devise such as combining two images before display. For example, there is a projector described in Patent Document 1 as a technique for displaying two types of images superimposed on one projector. In this method, frame image data is acquired in synchronization with input image data, and the acquired image data is combined and displayed. By providing image data combining means inside the projector, the image data is separated from another device ( This makes it possible to easily see a composite image without taking the trouble of taking it into a PC or the like.

However, in the projector disclosed in Patent Document 1, it is necessary to convert the data format when two display data having different data formats are combined and displayed. Such processing is described in the specification. Not listed.
Therefore, the present inventors have proposed to display each projection image on the screen by using two projectors in response to the desire to display the two display data in a superimposed manner. With such a configuration, the projected images are simply superimposed, so that the two display data can be easily superimposed and displayed regardless of the format of the display data.
JP 2003-140594 A

However, if the projected images are displayed on the screen using the two projectors, light and light are projected at the same position, so that, for example, the brightness (or brightness) of one image is displayed. Is higher than the brightness (or lightness) of the other image, there arises a problem that the display content becomes unclear, such as the other image being affected by the influence.
In addition, such a problem is caused by the brightness (brightness) balance between the two images to be displayed. Depending on the brightness balance between the input image and the frame image, this problem may also occur in the projector of Patent Document 1 that synthesizes the images. is there.

  Therefore, the present invention has been made paying attention to such an unsolved problem of the conventional technology, and is an image suitable for displaying two projected images in a superimposed manner using a projection display device. To provide a display system, a light projection display device, a display data processing device, a light projection display device control program, a display data processing device control program, a light projection display device control method, and a display data processing device control method Yes.

[Invention 1] In order to achieve the above object, an image display system of Invention 1 is a system for displaying two images to be light projected on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
A second light projection type display device capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
Display data processing means capable of processing each display data based on display data respectively projected from the first light projection display device and the second light projection display device;
An image projected from the first light projection display device and an image projected from the second light projection display device are displayed so as to overlap each other on the display portion.

With such a configuration, each display data can be processed based on the display data projected from the first light projection display device and the second light projection display device by the display data processing means. There is an effect that it is possible to remove or alleviate a problem related to image quality and the like that occurs when two images are superimposed on the display portion and displayed by light projection.
Furthermore, since the image projected from the first light projection type display device and the image projected from the second light projection type display device are simply superimposed on the display portion, the two images are simply superimposed on the display portion. Can be displayed.

  Here, the light projection type display device enlarges and projects light from a projector or the like, and forms an image on a display portion such as a screen at a remote position. There are mainly three types of projectors using a cathode ray tube (CRT), a liquid crystal element, and a DMD (Digital Micromirror Device). Hereinafter, the image display system of the invention 2, 3 and 4, the light projection type display device of the invention 12, the display data processing device of the invention 19, the light projection type display device control program of the invention 25, the display data processing device control program of the invention 32 This is the same in the light projection display device control method of the invention 38 and the display data processing device control method of the invention 45.

  The display data is image data that can be projected and displayed by the projector, and pixel values indicating the luminance (or brightness) levels of the pixels are stored for all the pixels of the image. If the image is color data, for example, the luminance values for each of the three primary colors of RGB (red, green, blue) light are stored for all pixels of the image. Hereinafter, the image display system of the invention 2, 3 and 4, the light projection type display device of the invention 12, the display data processing device of the invention 19, the light projection type display device control program of the invention 25, the display data processing device control program of the invention 32 This is the same in the light projection display device control method of the invention 38 and the display data processing device control method of the invention 45.

  Further, the processing process refers to a process for changing the pixel value of an image. For example, a desired display result is obtained by changing the luminance (or brightness) level of the pixel for each color. Hereinafter, the image display system of the invention 2, 3 and 4, the light projection type display device of the invention 12, the display data processing device of the invention 19, the light projection type display device control program of the invention 25, the display data processing device control program of the invention 32 This is the same in the light projection display device control method of the invention 38 and the display data processing device control method of the invention 45.

[Invention 2] On the other hand, in order to achieve the above object, the image display system of Invention 2 is a system for displaying two images to be light-projected on a display portion,
Display data acquisition means for acquiring first display data constituting the first image and second display data constituting the second image;
Display data analysis means for analyzing the first display data and the second display data acquired by the display data acquisition means;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on the first display data that has undergone the processing;
A second light projection type display device capable of independently controlling the light projection display process on the display portion of the second image based on the second display data that has undergone the processing,
The first image and the second image projected from the first light projection display device and the second light projection display device are displayed so as to overlap each other on the display portion.

  With such a configuration, the display data acquisition means can acquire the first display data constituting the first image and the second display data constituting the second image, and the display data analysis means. The first display data and the second display data acquired by the display data acquisition means can be analyzed by the display data processing means based on the analysis result of the display data analysis means. It is possible to process the display data and the second display data.

Further, the first light projection type display device can independently control the light projection display process on the display portion of the first image based on the first display data that has undergone the processing process. The light projection display device can independently control the light projection display process on the display portion of the second image based on the first display data that has undergone the processing.
Therefore, the problem relating to the image quality, etc., which occurs when the two images projected from the first light projection display device and the second light projection display device are superimposed on the display portion for light projection display, The effect that it can be removed or alleviated is obtained.

  Furthermore, the image projected from the first light projection type display device and the image projected from the second light projection type display device can be easily and overlaid on the display portion with a relatively good image quality. An effect is obtained.

[Invention 3] On the other hand, in order to achieve the above object, the image display system of Invention 3 is a system for displaying two images to be light-projected on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on first display data constituting the first image;
A second light projection type display device capable of independently controlling the light projection display process on the display portion of the second image based on the second display data constituting the second image,
The first light projection display device includes:
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmission means for transmitting the second display data that has undergone the processing to the second light projection type display device,
The second light projection type display device includes:
Comprising display data receiving means for receiving second display data transmitted from the first light projection display device;
The first image and the second image projected from the first light projection type display device and the second light projection type display device respectively corresponding to the first display data and the second display data that have undergone the processing. The second image is displayed so as to overlap the display portion.

  If it is such composition, the 1st above-mentioned light projection type display device can acquire the 1st display data and the 2nd display data by display data acquisition means, and by display data analysis means, The first display data and the second display data can be analyzed, and the display data processing means processes the first display data and the second display data based on the analysis result of the display data analysis means. It is possible to perform processing, and the display data transmitting means can transmit the second display data that has undergone the processing to the second light projection display device.

Further, the second light projection display device can receive the second display data transmitted from the first light projection display device by a display data receiving means.
Therefore, the problem relating to the image quality, etc., which occurs when the two images projected from the first light projection display device and the second light projection display device are superimposed on the display portion for light projection display, The effect that it can be removed or alleviated is obtained. Furthermore, since the image projected from the first light projection type display device and the image projected from the second light projection type display device are simply superimposed on the display portion, the two images are simply superimposed on the display portion. Can be displayed.

  Furthermore, the image projected from the first light projection type display device and the image projected from the second light projection type display device can be easily and overlaid on the display portion with a relatively good image quality. An effect is obtained.

[Invention 4] On the other hand, in order to achieve the above object, an image display system according to Invention 4 is a system that displays two light-projected images superimposed on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on first display data constituting the first image;
A second light projection type display device capable of independently controlling light projection display processing on the display portion of the second image based on second display data constituting the second image;
A display data processing device,
The display data processing device includes:
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmitting means for transmitting the first display data and the second display data that have undergone the processing to the first light projection display device and the two light projection display device, respectively,
The first light projection display device includes first display data receiving means for receiving first display data transmitted from the display data processing device,
The second light projection display device includes second display data receiving means for receiving second display data transmitted from the display data processing device,
The first image and the second image projected from the first light projection type display device and the second light projection type display device respectively corresponding to the first display data and the second display data that have undergone the processing. The second image is displayed so as to overlap the display portion.

  With such a configuration, the display data processing device can acquire the first display data and the second display data by a display data acquisition unit, and the display data analysis unit can acquire the first display data. It is possible to analyze the display data and the second display data, and the display data processing means performs processing of the first display data and the second display data based on the analysis result of the display data analysis means. The display data transmitting means transmits the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. It is possible.

Further, the first light projection type display device can receive the first display data transmitted from the display data processing device by the first display data receiving means.
In addition, the second light projection display device can receive the second display data transmitted from the display data processing device by the second display data receiving means.

[Invention 5] The image display system according to Invention 5 is the image display system according to any one of Inventions 2 to 4, in which one of the first image and the second image is set as a foreground image. And an image setting means capable of setting the other as a background image,
The display data analyzing means is capable of extracting a main image portion from the display data, and calculating a degree of brightness of the background image based on the display data of the background image, and the calculated degree Compare with a predetermined threshold,
The display data processing means determines that the brightness level of the main image portion of the foreground image is lower than the predetermined threshold when the brightness level of the background image is smaller than the predetermined threshold from the comparison result. The display data corresponding to the foreground image is processed so as to increase.

  With such a configuration, when the degree of brightness of the background image is smaller than a predetermined threshold, the degree of brightness of the main image portion of the foreground image is larger than the predetermined threshold. Since it is possible to process the display data corresponding to the foreground image, it is possible to prevent the main image portion of the foreground image from being unclearly displayed due to the brightness of the background image.

  Here, as the degree of brightness, brightness or brightness may be considered. The brightness is obtained by extracting the degree of light intensity with Max as white, Min as black, and the pure color with the highest saturation as the middle. On the other hand, the brightness (standard) is obtained by extracting the brightness with white and the pure color having the highest saturation as Max and black as Min. The result is very similar to the brightness, but it calculates the average of each RGB value. Therefore, in the lightness (standard), the value of “yellow / light blue / purple” and the value of “blue / red / green” is higher in the former, but is the same in luminance.

  [Invention 6] Further, the image display system of Invention 6 is the image display system of Invention 5, wherein the display data processing means is configured such that the brightness level of the background image is smaller than the predetermined threshold value. The brightness level of the main image portion in the foreground image is larger than the predetermined threshold value, and the brightness level of the background portion other than the main image portion in the foreground image is smaller than the predetermined threshold value. As described above, the display data corresponding to the foreground image is processed.

  With such a configuration, when the brightness level of the background image is smaller than the predetermined threshold value, the brightness level of the main image portion in the foreground image is larger than the predetermined threshold value. Thus, the display data corresponding to the foreground image can be processed so that the brightness level of the background portion other than the main image portion in the foreground image is smaller than the predetermined threshold. The main image portion of the foreground image can be prevented from being unclearly displayed due to the brightness of the background image, and the image other than the portion overlapping the main image portion of the background image is unclear due to the brightness of the foreground image. An effect of preventing display can be obtained.

[Invention 7] Furthermore, the image display system of Invention 7 is the image display system of Invention 5 or Invention 6, wherein the display data processing means is configured such that the degree of brightness of the background image is greater than the predetermined threshold value. In addition, the display data corresponding to the background image is processed so that the degree of brightness of the background image is smaller than the predetermined threshold value.
With such a configuration, when the brightness level of the background image is larger than the predetermined threshold value, the background image is set so that the brightness level of the background image becomes smaller than the predetermined threshold value. Since the display data corresponding to the image can be processed, an effect is obtained that the main image portion of the foreground image can be prevented from being unclearly displayed due to the brightness of the background image.

[Invention 8] The image display system according to Invention 8 is the image display system according to any one of Inventions 2 to 6, in which the first image and the second image are overlapped on the display portion. An overlap state determination means for determining
The display data processing means is characterized in that the display data is processed based on the determination result of the overlap state determination means.

  With such a configuration, it is possible to determine the overlapping state of the first image and the second image on the display target portion by the overlapping state determination unit, and thereby the foreground image. The display data can be processed by determining the overlapping position of the image and the background image.

  [Invention 9] Further, the image display system of Invention 9 is the image display system of Invention 8, wherein the display data processing means is based on a determination result of the overlap state determination means and the main image of the foreground image in the background image. Process the display data corresponding to the background image so that the degree of brightness of the image area is smaller than the predetermined threshold for the image area of the predetermined range including the part where the image part and the background image overlap and its vicinity It is characterized by doing.

  In such a configuration, based on the determination result of the overlap state determination means, an image region in a predetermined range including a portion where the main image portion of the foreground image and the background image overlap in the background image and the vicinity thereof is included. Since the display data corresponding to the background image can be processed so that the brightness level of the image area is smaller than the predetermined threshold value, the display content of the foreground image is obscured by the background image. The effect that it can prevent is acquired.

[Invention 10] The image display system according to Invention 10 is the image display system according to any one of Inventions 1 to 9, in which the first image projected from the first light projection display device and the second image display system. A display position matching means for matching the display position on the display portion with the second image projected from the light projection type display device is provided.
With such a configuration, the first image projected from the first light projection display device and the second image projected from the second light projection display device on the display portion. There is an effect that the display positions can be easily matched.

[Invention 11] On the other hand, in order to achieve the above object, an image display system according to Invention 11 is a system that displays a plurality of light-projected images superimposed on a display portion.
A plurality of light projection display devices capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
Display data processing means for processing each display data based on display data corresponding to each of the plurality of light projection display devices,
A plurality of images corresponding to a plurality of display data subjected to the processing and projected by the plurality of light projection display devices are displayed in an overlapping manner on the display portion.

  With such a configuration, the display data processing means can process each display data based on the display data projected from each of the plurality of light projection type display devices, so that a plurality of images are displayed on the display portion. There is an effect that it is possible to remove or alleviate a problem related to image quality or the like that occurs when the light projection display is superimposed.

[Invention 12] On the other hand, in order to achieve the above object, the light projection type display device according to Invention 12 onto the display portion of the first image based on the first display data constituting the first image. A first light projection display device capable of independently controlling the light projection display processing, and light projection display of the second image on the display portion based on the second display data constituting the second image. A second light projection type display device capable of independently controlling processing, and processing in the first light projection type display device projected from the first light projection type display device and the second light projection type display device The light projection type that can be applied to a system that displays the first image and the second image corresponding to the first display data and the second display data that have undergone processing on the display target portion, respectively. A display device,
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
And display data transmitting means for transmitting the second display data that has undergone the processing to the second light projection display device.
Here, the present invention is a light projection type display device applicable to the image display system of the third aspect, and the same effect as the third aspect can be obtained.

[Invention 13] Furthermore, the light projection display device of Invention 13 is the light projection display device of Invention 12, wherein either one of the first image and the second image is set as a foreground image, and the other is set. Image setting means that can be set as a background image,
The display data analyzing means is capable of extracting a main image portion from the display data, and calculating a degree of brightness of the background image based on the display data of the background image, and the calculated degree Compare with a predetermined threshold,
The display data processing means determines that the brightness level of the main image portion of the foreground image is lower than the predetermined threshold when the brightness level of the background image is smaller than the predetermined threshold from the comparison result. The display data corresponding to the foreground image is processed so as to increase.
Here, the present invention is a light projection type display device applicable to the image display system of the invention 5 subordinate to the invention 3, and the same effect as the invention 5 can be obtained.

[Invention 14] Further, the light projection display device of Invention 14 is the light projection display device of Invention 13, wherein the display data processing means is such that the degree of brightness of the background image is smaller than the predetermined threshold value. Sometimes, the brightness level of the main image portion in the foreground image is larger than the predetermined threshold, and the brightness level of the background portion other than the main image portion in the foreground image is the predetermined level. The display data corresponding to the foreground image is processed so as to be smaller than the threshold value.
Here, the present invention is a light projection type display device applicable to the image display system of the invention 6 subordinate to the invention 3, and the same operation effect as the invention 6 can be obtained.

[Invention 15] Further, the light projection type display device of the invention 15 is the light projection type display device of the invention 13 or the invention 14, wherein the display data processing means is such that the degree of brightness of the background image is the predetermined value. The display data corresponding to the background image is processed so that the degree of brightness of the background image is smaller than the predetermined threshold when the threshold value is larger than the threshold value.
Here, the present invention is a light projection type display device applicable to the image display system of the seventh aspect subordinate to the third aspect, and the same effect as the seventh aspect can be obtained.

[Invention 16] Furthermore, the light projection display device of Invention 16 is the light projection display device according to any one of Inventions 12 to 14, in which the first image and the second image on the display portion. An overlap state determination means for determining an overlap state with the image,
The display data processing means is characterized in that the display data is processed based on the determination result of the overlap state determination means.
Here, the present invention is a light projection type display device applicable to the image display system of the invention 8 subordinate to the invention 3, and the same operation effect as that of the invention 8 is obtained.

[Invention 17] Further, the light projection type display device of the invention 17 is the light projection type display device of the invention 16, wherein the display data processing means is based on a determination result of the overlap state determination means, Corresponding to the background image such that the brightness level of the image area is smaller than the predetermined threshold, the image area in a predetermined range including a portion where the main image portion of the foreground image and the background image overlap and its vicinity. It is characterized by processing display data.
Here, the present invention is a light projection type display device applicable to the image display system of the ninth aspect subordinate to the third aspect, and the same effect as the ninth aspect is obtained.

[Invention 18] Furthermore, the light projection display device according to Invention 18 is the light projection display device according to any one of Inventions 12 to 17, and the first image projected from the first light projection display device. And a display position matching means for matching the display position on the display portion with the second image projected from the second light projection display device.
Here, the present invention is a light projection type display device applicable to the image display system of the tenth invention subordinate to the third invention, and the same effect as the tenth invention can be obtained.

[Invention 19] On the other hand, in order to achieve the above object, the display data processing device of Invention 19 provides light to the display portion of the first image based on the first display data constituting the first image. A first light projection type display device capable of independently controlling the projection display process, and a light projection display process on the display portion of the second image based on the second display data constituting the second image. In the display data processing device, comprising a second light projection type display device that can be controlled independently, and a display data processing device, projected from the first light projection type display device and the second light projection type display device. The display data that can be applied to a system that displays the first image and the second image corresponding to the first display data and the second display data that have undergone a processing process on the display target portion, respectively. A processing device comprising:
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmitting means for transmitting the first display data and the second display data that have undergone the processing to the first light projection type display device and the two light projection type display device, respectively. Yes.
Here, the present invention is a display data processing apparatus applicable to the image display system according to the fourth aspect of the present invention, and the same effect can be obtained.

[Invention 20] Furthermore, the display data processing device of Invention 20 is the display data processing device of Invention 19, wherein one of the first image and the second image is set as a foreground image, and the other is a background image. Image setting means that can be set as
The display data analyzing means is capable of extracting a main image portion from the display data, and calculating a degree of brightness of the background image based on the display data of the background image, and the calculated degree Compare with a predetermined threshold,
The display data processing means determines that the brightness level of the main image portion of the foreground image is lower than the predetermined threshold when the brightness level of the background image is smaller than the predetermined threshold from the comparison result. The display data corresponding to the foreground image is processed so as to increase.
Here, the present invention is a display data processing apparatus applicable to the image display system according to the fifth aspect subordinate to the fourth aspect, and the same effect as the fifth aspect is obtained.

[Invention 21] Furthermore, the display data processing device of Invention 21 is the display data processing device of Invention 20, wherein the display data processing means is configured such that the degree of brightness of the background image is smaller than the predetermined threshold value. The brightness level of the main image portion in the foreground image is larger than the predetermined threshold value, and the brightness level of the background portion other than the main image portion in the foreground image is higher than the predetermined threshold value. The display data corresponding to the foreground image is processed so as to be smaller.
Here, the present invention is a display data processing apparatus applicable to the image display system according to the sixth aspect subordinate to the fourth aspect, and the same effect as the sixth aspect can be obtained.

[Invention 22] Further, the display data processing device of Invention 22 is the display data processing device of Invention 20 or Invention 21, wherein the display data processing means is such that the degree of brightness of the background image is greater than the predetermined threshold value. The display data corresponding to the background image is processed so that the brightness level of the background image is smaller than the predetermined threshold when it is large.
Here, the present invention is a display data processing apparatus applicable to the image display system according to the seventh aspect subordinate to the fourth aspect, and the same effect as the seventh aspect can be obtained.

[Invention 23] The display data processing device of Invention 23 is the display data processing device of any one of Inventions 19 to 21, in which the first image and the second image on the display portion are An overlap state determination means for determining the overlap state of
The display data processing means is characterized in that the display data is processed based on the determination result of the overlap state determination means.
Here, the present invention is a display data processing apparatus applicable to the image display system according to the eighth aspect subordinate to the fourth aspect, and the same operational effects as the eighth aspect are obtained.

[Invention 24] Furthermore, the display data processing device according to [24] is the display data processing device according to [23], in which the display data processing means is based on a determination result of the overlap state determination means, and the foreground image in the background image. Display data corresponding to the background image so that the brightness level of the image area is smaller than the predetermined threshold, including an area where the main image portion of the image overlaps the background image and the vicinity thereof. It is characterized by processing.
Here, the present invention is a display data processing apparatus applicable to the image display system of the ninth aspect subordinate to the fourth aspect, and the same effect as that of the ninth aspect is obtained.

[Invention 25] On the other hand, the light projection display device control program according to Invention 25 performs light projection display processing on the display portion of the first image based on first display data constituting the first image. Independently controllable first light projection display device and light projection display process on the display portion of the second image based on the second display data constituting the second image The first light projection display device and the first light projection display device projected from the first light projection display device and the second light projection display device, and processed through the first light projection display device. A computer for controlling the light projection type display device in a system for displaying the first image and the second image corresponding to the display data and the second display data, respectively, on the display portion. An executable program,
A display data acquisition step of acquiring the first display data and the second display data;
A display data analysis step for analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the display data analysis step;
A display data transmission step of transmitting the second display data that has undergone the processing process to the second light projection display device.
Here, the present invention is a program applicable to the image display system of the third invention, and thereby, the same effect as the third invention can be obtained.

[Invention 26] Furthermore, the light projection display device control program according to the invention 26 is the light projection display device control program according to the invention 25, wherein either one of the first image and the second image is set as a foreground image. And an image setting step capable of setting the other as a background image,
In the display data analysis step, it is possible to extract a main image portion from the display data, and calculate the degree of brightness of the background image based on the display data of the background image, and the calculated degree And a predetermined threshold,
In the display data processing step, when the brightness level of the background image is smaller than the predetermined threshold value from the comparison result, the brightness level of the foreground image is larger than the predetermined threshold value. In addition, the display data corresponding to the foreground image is processed.
Here, the present invention is a program applicable to the image display system of the invention 5 subordinate to the invention 3, and the same effect as that of the invention 5 is thereby obtained.

[Invention 27] Furthermore, the light projection display device control program according to the invention 27 is the light projection display device control program according to the invention 26, wherein, in the display data processing step, the brightness level of the background image is greater. When the brightness is smaller than a predetermined threshold, the brightness of the main image portion in the foreground image is larger than the predetermined threshold, and the brightness of the background portion other than the main image portion in the foreground image is set. The display data corresponding to the foreground image is processed so that the degree is smaller than the predetermined threshold value.
Here, the present invention is a program applicable to the image display system of the invention 6 that is subordinate to the invention 3, and thereby, the same effect as that of the invention 6 can be obtained.

[Invention 28] Further, the light projection type display device control program according to the invention 28 is the light projection type display device control program according to the invention 26 or the invention 27, wherein in the display data processing step, the degree of brightness of the background image is determined. The display data corresponding to the background image is processed so that the brightness level of the background image is smaller than the predetermined threshold when the direction is larger than the predetermined threshold.
Here, the present invention is a program applicable to the image display system according to the seventh aspect subordinate to the third aspect, and thereby the same effect as the seventh aspect can be obtained.

[Invention 29] Furthermore, the light projection display device control program according to the invention 29 is the light projection display device control program according to any one of the invention 25 to the invention 27, wherein the first image on the display portion is An overlapping state determination step for determining an overlapping state with the second image;
In the display data processing step, the display data is processed based on the determination result in the overlap state determination step.
Here, the present invention is a program that can be applied to the image display system of the invention 8 that is subordinate to the invention 3, and thereby, the same effect as that of the invention 8 can be obtained.

[Invention 30] Furthermore, the light projection display device control program according to Invention 30 is the light projection display device control program according to Invention 29, wherein the display data processing step is based on the determination result in the overlap state determination step. In a background image, an image region in a predetermined range including a portion where the main image portion of the foreground image overlaps the background image and the vicinity thereof is set such that the brightness level of the image region is smaller than the predetermined threshold value. It is characterized by processing display data corresponding to a background image.
Here, the present invention is a program applicable to the image display system of the ninth aspect subordinate to the third aspect, and thereby, the same effect as the ninth aspect can be obtained.

[Invention 31] Furthermore, the light projection type display device control program of the invention 31 is the light projection type display device control program according to any one of the inventions 25 to 30, wherein the first light projection type display device projects the first one. And a display position matching step of matching the display positions of the first image and the second image projected from the second light projection display device on the display target portion.
Here, the present invention is a program applicable to the image display system of the tenth invention subordinate to the third invention, and thereby, the same effect as the tenth invention can be obtained.

[Invention 32] On the other hand, in order to achieve the above object, the display data processing device control program of the invention 32 is directed to the display portion of the first image based on the first display data constituting the first image. A first light projection display device capable of independently controlling the light projection display processing, and light projection display of the second image on the display portion based on the second display data constituting the second image. The display data processing, comprising: a second light projection display device capable of independently controlling processing; and a display data processing device, projected from the first light projection display device and the second light projection display device The display data processing in a system that displays the first image and the second image corresponding to the first display data and the second display data, respectively, that have undergone processing in the apparatus, overlaid on the display portion. To control the equipment A computer executable program,
A display data acquisition step of acquiring the first display data and the second display data;
A data analysis step of analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the data analysis step;
A display data transmission step of transmitting the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. Yes.
Here, the present invention is a program applicable to the image display system according to the fourth aspect, and thereby, the same effect as the fourth aspect can be obtained.

[Invention 33] Further, the display data processing device control program of the invention 33 is the display data processing device control program of the invention 32, wherein either one of the first image and the second image is set as a foreground image, An image setting step capable of setting the other as a background image;
In the display data analysis step, it is possible to extract a main image portion from the display data, and calculate the degree of brightness of the background image based on the display data of the background image, and the calculated degree And a predetermined threshold,
In the display data processing step, when the brightness level of the background image is smaller than the predetermined threshold value from the comparison result, the brightness level of the foreground image is larger than the predetermined threshold value. In addition, the display data corresponding to the foreground image is processed.
Here, the present invention is a program that can be applied to the image display system of the invention 5 that is subordinate to the invention 4, and the same effect as that of the invention 5 is thereby obtained.

  [Invention 34] The display data processing device control program according to the invention 34 is the display data processing device control program according to the invention 33. In the display data processing step, the brightness level of the background image is greater than the predetermined value. When the threshold value is smaller than the threshold value, the brightness level of the main image portion in the foreground image is larger than the predetermined threshold value, and the brightness level of the background portion other than the main image portion in the foreground image is set. The display data corresponding to the foreground image is processed so as to be smaller than the predetermined threshold value.

  Here, the present invention is a program applicable to the image display system of invention 6 that is subordinate to invention 4, whereby the same effects as those of invention 6 can be obtained.

[Invention 35] Further, the display data processing device control program of the invention 35 is the display data processing device control program of the invention 33 or 34, wherein the brightness level of the background image is greater in the display data processing step. The display data corresponding to the background image is processed so that the brightness level of the background image is smaller than the predetermined threshold when the threshold is larger than the predetermined threshold.
Here, the present invention is a program applicable to the image display system according to the seventh aspect subordinate to the fourth aspect, and the same effect as the seventh aspect can be obtained.

[Invention 36] Furthermore, the display data processing device control program according to the invention 36 is the display data processing device control program according to any one of the inventions 32 to 34, wherein the first image and the first image on the display portion are displayed. An overlapping state determining step for determining an overlapping state with the two images;
In the display data processing step, the display data is processed based on the determination result in the overlap state determination step.
Here, the present invention is a program that can be applied to the image display system of the invention 8 that is subordinate to the invention 4, and thereby the same effect as that of the invention 8 can be obtained.

[Invention 37] Further, the display data processing device control program according to the invention 37 is the display data processing device control program according to the invention 36, wherein, in the display data processing step, the background image is based on a determination result in the overlap state determination step. In the image area in a predetermined range including a portion where the main image portion of the foreground image and the background image overlap and the vicinity thereof, the background image is set so that the degree of brightness of the image region is smaller than the predetermined threshold. It is characterized by processing display data corresponding to.
Here, the present invention is a program applicable to the image display system of the ninth aspect subordinate to the fourth aspect, and the same effect as the ninth aspect can be obtained.

[Invention 38] On the other hand, the light projection display device control method according to Invention 38 performs light projection display processing on the display portion of the first image based on the first display data constituting the first image. The first light projection display device that can be controlled independently, and the light projection display processing on the display portion of the second image based on the second display data constituting the second image can be independently controlled. The first light projection type display device and the first light projection type display device projected from the first light projection type display device and the second light projection type display device. A method for controlling the light projection display device in a system that displays the first image and the second image respectively corresponding to display data and the second display data on the display target portion. There,
A display data acquisition step of acquiring the first display data and the second display data;
A display data analysis step for analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the display data analysis step;
A display data transmission step of transmitting the second display data that has undergone the processing process to the second light projection display device.
Thereby, an effect equivalent to that of the image display system of aspect 3 is obtained.

[Invention 39] Furthermore, the light projection display device control method according to the invention 39 is the light projection display device control method according to the invention 38, wherein either one of the first image and the second image is set as a foreground image. And an image setting step for setting the other as a background image,
In the display data analysis step, a main image portion is extracted from the display data, and the brightness level of the background image is calculated based on the display data of the background image, and the calculated level and a predetermined threshold value are calculated. Compare
In the display data processing step, when the brightness level of the background image is smaller than the predetermined threshold from the comparison result, the brightness level of the foreground image set in the image setting step is the predetermined level. The display data corresponding to the foreground image is processed so as to be larger than the threshold value.
Thereby, the same effect as that of the image display system of the invention 5 subordinate to the invention 3 can be obtained.

[Invention 40] Furthermore, the light projection display device control method according to the invention 40 is the light projection display device control method according to the invention 39, wherein, in the display data processing step, the degree of brightness of the background image is greater. When the brightness is smaller than a predetermined threshold, the brightness of the main image portion in the foreground image is larger than the predetermined threshold, and the brightness of the background portion other than the main image portion in the foreground image is set. The display data corresponding to the foreground image is processed so that the degree is smaller than the predetermined threshold value.
Thereby, an effect equivalent to that of the image display system of the invention 6 subordinate to the invention 3 is obtained.

[Invention 41] Furthermore, the light projection display device control method of the invention 41 is the light projection display device control method of the invention 39 or the invention 40. In the display data processing step, the degree of brightness of the background image is determined. The display data corresponding to the background image is processed so that the brightness level of the background image is smaller than the predetermined threshold when the direction is larger than the predetermined threshold.
Thereby, an effect equivalent to that of the image display system of the invention 7 subordinate to the invention 3 is obtained.

[Invention 42] Furthermore, the light projection display device control method according to the invention 41 is the light projection display device control method according to any one of the invention 38 to the invention 40, wherein the first image on the display portion is An overlapping state determining step for determining an overlapping state with the second image,
In the display data processing step, the display data is processed based on the determination result in the overlap state determination step.
Thereby, an effect equivalent to that of the image display system according to the eighth aspect subordinate to the third aspect is obtained.

[Invention 43] The light projection display control method according to Invention 43 is the light projection display control method according to Invention 42, wherein the display data processing step is based on the determination result in the overlap state determination step. In a background image, an image region in a predetermined range including a portion where the main image portion of the foreground image overlaps the background image and the vicinity thereof is set such that the brightness level of the image region is smaller than the predetermined threshold value. It is characterized by processing display data corresponding to a background image.
Thereby, the same effect as that of the image display system of the ninth aspect dependent on the third aspect can be obtained.

[Invention 44] Furthermore, an optical projection display device control method according to an invention 44 is the optical projection display device control method according to any one of the inventions 38 to 43, in which the first light projection display device projects. A display position matching step for matching the display positions of the first image and the second image projected from the second light projection display device on the display target portion.
Thereby, an effect equivalent to that of the image display system according to the tenth aspect dependent on the third aspect is obtained.

[Invention 45] On the other hand, in order to achieve the above object, the display data processing device control method of Invention 45 is directed to the display portion of the first image based on the first display data constituting the first image. A first light projection display device capable of independently controlling the light projection display processing, and light projection display of the second image on the display portion based on the second display data constituting the second image. The display data processing, comprising: a second light projection display device capable of independently controlling processing; and a display data processing device, projected from the first light projection display device and the second light projection display device The display data processing in a system that displays the first image and the second image corresponding to the first display data and the second display data, respectively, that have undergone processing in the apparatus, overlaid on the display portion. Method for controlling a device Because
A display data acquisition step of acquiring the first display data and the second display data;
A data analysis step of analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the data analysis step;
A display data transmission step of transmitting the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. Yes.
Thereby, an effect equivalent to that of the image display system of aspect 4 is obtained.

[Invention 46] Further, the display data processing device control method of the invention 46 is the display data processing device control method of the invention 45, wherein either one of the first image and the second image is set as a foreground image, Including an image setting step of setting the other as a background image,
In the display data analysis step, a main image portion is extracted from the display data, and the brightness level of the background image is calculated based on the display data of the background image, and the calculated level and a predetermined threshold value are calculated. Compare
In the display data processing step, when the brightness level of the background image is smaller than the predetermined threshold from the comparison result, the brightness level of the foreground image set in the image setting step is the predetermined level. The display data corresponding to the foreground image is processed so as to be larger than the threshold value.
Thereby, an effect equivalent to that of the image display system of the invention 5 subordinate to the invention 4 is obtained.

[Invention 47] Furthermore, the light projection display device control method according to the invention 47 is the light projection display device control method according to the invention 46, wherein, in the display data processing step, the degree of brightness of the background image is greater. When the brightness is smaller than a predetermined threshold, the brightness of the main image portion in the foreground image is larger than the predetermined threshold, and the brightness of the background portion other than the main image portion in the foreground image is set. The display data corresponding to the foreground image is processed so that the degree is smaller than the predetermined threshold value.
Thereby, an effect equivalent to that of the image display system according to the sixth aspect subordinate to the fourth aspect is obtained.

[Invention 48] Further, the light projection display device control method of the invention 48 is the light projection display device control method of the invention 46 or the invention 47, wherein in the display data processing step, the degree of brightness of the background image is determined. The display data corresponding to the background image is processed so that the brightness level of the background image is smaller than the predetermined threshold when the direction is larger than the predetermined threshold.
Thereby, an effect equivalent to that of the image display system of the invention 7 subordinate to the invention 4 is obtained.

[Invention 49] Furthermore, the light projection display device control method of the invention 49 is the light projection display device control method of any one of the inventions 45 to 47, wherein the first image on the display portion is An overlapping state determining step of determining an overlapping state with the second image,
In the display data processing step, the display data is processed based on the determination result in the overlap state determination step.
Thereby, the same effect as that of the image display system according to the eighth aspect dependent on the fourth aspect can be obtained.

[Invention 50] Furthermore, the light projection display device control method according to the invention 50 is the light projection display device control method according to the invention 49, wherein the display data processing step is based on the determination result in the overlap state determination step. In a background image, an image region in a predetermined range including a portion where the main image portion of the foreground image overlaps the background image and the vicinity thereof is set such that the degree of brightness of the image region is smaller than the predetermined threshold. It is characterized by processing display data corresponding to a background image.
Thereby, an effect equivalent to that of the image display system of the ninth aspect dependent on the fourth aspect is obtained.

[First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. FIGS. 1-10 is a figure which shows 1st Embodiment of the image display system based on this invention.
First, the configuration of the image display system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is an overview diagram showing a configuration of an image display system 1 according to the first embodiment of the present invention.

  The image display system 1 can process the display data based on the display data and can project an image corresponding to the display data by light projection, and an image corresponding to the display data based on the display data. The configuration includes a second projector 3 capable of light projection and a screen 4 for displaying the light-projected image. Further, the first projector 2 and the second projector 3 are communicably connected to each other via a communication cable 100, and the first projector 2 transmits display data after processing through the communication cable 100. It is possible to transmit to the second projector 3.

Further, a detailed configuration of the first projector 2 will be described with reference to FIG. FIG. 2 is a block diagram showing a detailed configuration of the first projector 2.
As shown in FIG. 2, the first projector 2 acquires a first display data acquisition unit 2 a that acquires display data via a card-type storage medium, and a first display data acquisition unit that acquires display data via a card-type storage medium. 2 display data acquisition unit 2b, a data control unit 2c that controls each component of the first projector 2, and display data acquired via the first display data acquisition unit 2a and the second display data acquisition unit 2b A data storage unit 2d that stores data necessary for each process, a data selection unit 2e that can select arbitrary display data from display data stored in a card-type storage medium, and a data selection unit 2e. A data analysis unit 2f for analyzing the displayed data, a data processing unit 2g for processing the display data based on the analysis result of the data analysis unit 2f, and a second project that has undergone the processing The data communication unit 2h for data communication with the second projector 3 such as transmitting display data for 3 to the second projector 3 and the display data for the first projector 2 that has undergone the processing process Calculated based on the display position information acquired by the data display unit 2i capable of projecting the projected image, the display position acquisition unit 2j for acquiring the display position information of the image projected on the screen, and the display position acquisition unit 2j. And a projection position matching unit 2k that corrects the projection position of the image based on the correction information and matches the image display position of the second projector 3.

The first display data acquisition unit 2a and the second display data acquisition unit 2b have a function of making it possible to acquire data stored in the storage medium through electrical contact with the card-type storage medium. .
The data control unit 2c acquires data from a card-type storage medium via the first display data acquisition unit 2a and the second display data acquisition unit 2b, stores the acquired data in the data storage unit 2d, Data between components such as reading data stored in the storage unit 2d and transmitting the read data to each component or relaying data processed in each component to other components The projection position matching unit 2k calculates a control amount for correcting the projection position of the first projector 2 based on the data acquired from the display position acquisition unit 2j. It has functions.

The data storage unit 2d stores, in a memory, data acquired via the first display data acquisition unit 2a, the second display data acquisition unit 2b, the data communication unit 2h, and the like in accordance with a control command from the data control unit 2c. , And has a function of outputting data stored in the memory in accordance with a control command of the data control unit 2c.
The data selection unit 2e has a function of arbitrarily selecting display data to be projected on the first projector 2 and the second projector 3 from display data stored in a card-type storage medium. In the present embodiment, it is possible to perform a setting in which one of the first display data acquisition unit 2a and the second display data acquisition unit 2b is a foreground image and the other is a background image. Therefore, for example, by setting the display data acquired through the first display data acquisition unit 2a as the foreground image and the display data acquired through the second display data acquisition unit 2b as the background image, the data control unit 2c In accordance with this setting, attributes of the foreground image and background image are added to the display data and stored in the data storage unit 2d.

  The data analysis unit 2f has a function of analyzing display data acquired via the data control unit 2c. In the present embodiment, the acquired display data is foreground or background setting information, format information indicating what kind of application software is supported, information on main parts (character data, etc.) included in the display data, It is possible to obtain by analysis the information of the overlapping state when the display data projected by the first projector 2 and the second projector 3 are overlapped. Furthermore, in this embodiment, it has the function to extract a main part from display data based on the information of the said main part. In addition, each display data that has undergone the extraction process is converted into a format (pixel value data) that can be projected by the projector, and based on the pixel value data, the brightness of the background image is calculated, and the calculated brightness and the prepared brightness are prepared in advance. A process of comparing the threshold value is performed. Each analysis information described above, the pixel value data composed of the extracted main part, and the luminance comparison result are transmitted to the data control unit 2c as analysis result information.

  The data processing unit 2g obtains a total of two display data obtained by the first projector 2 and the second projector 3 one by one acquired through the data control unit 2c, and analysis result information of the data analysis unit 2f. Based on the above, each display data is processed. In this embodiment, the luminance information of each pixel value data is processed so that the foreground image is not obscured by the luminance of the background image from the overlapping state of the foreground image and the background image, the luminance comparison result, and the like. . In addition, when the main part is not included in the background image, it is also possible to perform a processing process in which the peripheral area including the main part of the foreground image in the background image is a black image (image having the minimum luminance). is there. In addition, various processing processes such as reducing the brightness of the entire background image and increasing the brightness of the main part of the foreground image are possible. In the present embodiment, the processing content can be flexibly set according to the display data for these processing processes.

Display data (pixel value data) subjected to the processing is transmitted to the data control unit 2c. In addition, when it is not necessary to perform processing, display data (pixel value data) is transmitted to the data control unit 2c as it is without being processed.
The data communication unit 2h transmits display data for the second projector 3 processed by the data processing unit 2g to the second projector 3 or transmitted from the second projector 3 via the communication cable. Controls data communication with external devices connected via a communication cable, such as receiving data.

The data display unit 2i is made of an optical material such as a light source lamp and a lens, and forms an optical image corresponding to the display data on the screen by modulating light from the light source according to the display data. Is possible. The optical configuration of the data display unit 2i will be described later.
The display position acquisition unit 2j captures an image projected on a screen by an imaging device (not shown) and acquires display position information. The acquired display position information is transmitted to the data control unit 2c.

The projection position matching unit 2k calculates the control amount for correcting the projection position from the data control unit 2c using the display position information transmitted to the data control unit 2c, and determines the projection position based on the calculated control amount. Correct it. Here, in the present embodiment, the mechanism is such that the position of the projection lens can be adjusted by controlling a motor or the like according to the control amount.
Here, the first projector 2 includes a processor (not shown), a RAM (Random Access Memory), and a ROM (Read Only Memory) in which a dedicated program is stored, and the processor executes the dedicated program. By doing so, the function of each of the above parts is achieved. Further, in the present embodiment, the above-described units are mixed with ones that perform their functions only by a dedicated program, and those that perform their functions by controlling hardware using a dedicated program.

Further, the optical configuration of the data display unit 2i will be described with reference to FIG. FIG. 3 is a diagram illustrating an optical configuration of the data display unit 2 i in the first projector 2.
As shown in FIG. 3, the optical configuration 300 of the data display unit 2i disperses unevenness in the luminance of light from the light source 10 such as an ultra-high pressure mercury lamp or a xenon lamp, and uniform illumination on the irradiation surface. A color modulator 14 that modulates the luminances of the three primary colors of RGB in the wavelength range of the light incident through the fly-eye lenses 32a, 32b, and two fly-eye lenses 32a, 32b for obtaining the distribution; 14 includes a projection unit 16 that projects light incident from 14 onto a screen (not shown).

  The color modulator 14 includes three liquid crystal light valves 40R, 40G, and 40B having a configuration in which a plurality of pixels whose transmittance can be controlled independently are arranged in a matrix, and five field lenses 42R, 42G, and 42B1 to 42B3. And two dichroic mirrors 44a and 44b, three mirrors 46a, 46b and 46c, and a dichroic prism 48.

  The operation of the optical configuration 300 will be briefly described. First, light from the light source 10 incident on the color modulation unit 14 via the two fly-eye lenses 32a and 32b is red, green, and blue by the dichroic mirrors 44a and 44b. Are split into the three primary colors of RGB and incident on the liquid crystal light valves 40R-40B via field lenses 42R, 42G, 42B1-42B3 and mirrors 46a-46c. Then, the brightness of the RGB three primary colors is modulated by the liquid crystal light valves 40R to 40B, and the modulated RGB three primary colors are condensed by the dichroic prism 48 and incident on the projection unit 16. Furthermore, the projection unit 16 projects incident light onto the screen using a projection lens.

Further, the configuration of the second projector 3 will be described with reference to FIG. FIG. 4 is a block diagram showing the configuration of the second projector 3.
As shown in FIG. 4, the second projector 3 receives data transmitted from the first projector 2 via the communication cable 100 or transmits data to the first projector 2 via the communication cable 100. Obtained from the first projector 2, a data communication unit 3 a for performing data communication with the first projector 2, a data control unit 3 b for controlling each component of the second projector 3, and the like. A configuration including a data storage unit 3c that stores display data and other data necessary for display processing, and a data display unit 3d that can project an image corresponding to the display data for the second projector 3 that has undergone the processing. It has become.

The data control unit 3b stores display data received from the first projector 2 via the data communication unit 3a in the data storage unit 3c, and transmits the stored display data to the data display unit 3d.
Since the data display unit 3d has the same configuration as the data display unit 2i in the first projector 2, description thereof is omitted.

  Here, the second projector 3 includes a processor (not shown), a RAM (Random Access Memory), and a ROM (Read Only Memory) in which a dedicated program is stored, and the processor executes the dedicated program. By doing so, the function of each of the above parts is achieved. In addition, the above-described units include a mixture of a unit that fulfills its function with only a dedicated program, a unit that performs hardware control by a dedicated program, and the like.

Hereinafter, a more specific operation of the image display system 1 will be described with reference to FIGS. 5 and 6. FIG. 5 is a diagram illustrating a first example in which display data is processed and two projection images are displayed in an overlapping manner. FIG. 6 is a second example in which display data is processed and two projection images are displayed in a superimposed manner. FIG.
First, the first example shown in FIG. 5 will be described.

  Here, in the data selection unit 2e, the display data acquired through the first display data acquisition unit 2a is set in advance as the foreground image, and the display data acquired through the second display data acquisition unit 2b is set as the background image in advance. Suppose that Further, in response to a selection instruction from the system user, the display data of the image 50 shown in FIG. 5 is selected by the data selection unit 2e via the first display data acquisition unit 2a, and the display data of the image 51 is second. It is assumed that the selection is made via the display data acquisition unit 2b. In this embodiment, the display data is selected by selecting, for example, a file name list that is recognized as display data from the storage contents of the card-type storage medium inserted in the card insertion unit of the first display data acquisition unit 2a. A list is displayed on a display unit (not shown) as thumbnails, and arbitrary display data is selected from the list. On the first projector 2 side, it is possible to set which of the first projector 2 and the second projector 3 projects the foreground image and which projects the background image. Here, the first projector 2 is set to project a foreground image, and the second projector 3 is set to project a background image.

  When the display data of the image 50 and the image 51 is selected from the display data displayed in a list, the data control unit 2c reads the display data of the image 50 via the first display data acquisition unit 2a, An attribute indicating a foreground image is assigned and stored in the data storage unit 2d. Similarly, the display data of the image 51 is read out via the second display data acquisition unit 2b, and an attribute indicating that it is a background image is given to this and stored in the data storage unit 2d.

When the display data to which the attribute is given is stored in such a procedure, the data control unit 2c reads the stored display data and passes the read display data to the data analysis unit 2f. Hereinafter, display data corresponding to the foreground image is appropriately referred to as foreground data, and display data corresponding to the background image is appropriately referred to as background data.
The data analysis unit 2f first analyzes the foreground data and the background data, and extracts the main part. In the present embodiment, for extracting the main part, information (character data, changes in brightness and brightness, etc.) for determining the main part in the display data is set in advance. Automatically extracted by analysis or pattern recognition. The extraction of the main part may be performed in accordance with a direct instruction from the system user using an input device or the like. Here, as shown in FIG. 5, the character part in the display data of the image 50 which is a foreground image is extracted as a main part. On the other hand, it is determined that the main part is not included in the image 51 which is the background image, and the main part is not extracted. Whether or not to extract the main part may be set for each display data. For example, display data set not to perform extraction processing is handled as one image as a whole. In the present embodiment, position information of main parts with respect to the entire image is also acquired. Thereby, the overlapping state of the main part of the foreground image and the background image is understood from the extracted position information of the main part.

Here, when the display data is a structured document format such as XML (eXtensible Markup Language), the main part may be extracted based on the structure. For example, if the <title> and <text> elements in the display data are regarded as main parts, the main parts can be extracted by a simple method.
Further, the luminance of the main part of the image 50 that is the extracted foreground image and the luminance of the image 51 that is the background image (for example, the average luminance of the entire image), and a preset luminance threshold value (for example, displayable luminance) The median of the range). For this reason, it is necessary to determine the luminance values of the main part of the foreground image, the background image, and the like used for comparison by calculating their average values. In this comparison process, display data in a file format specific to application software that is not pixel value data is obtained by using the luminance values for the three primary colors of RGB (red, green, blue) light for all pixels of the image. It is converted into stored data (pixel value data). Here, it is assumed that the luminance of the main part and the luminance of the background image are determined to be smaller than the threshold value by the comparison. The comparison result, the extraction result, and the data of the overlapping state are passed to the data processing unit 2g through the data control unit 2c together with the display data (pixel value data) as analysis result information.

  On the other hand, the data processing unit 2g processes display data based on the analysis result information. As shown in FIG. 5, the display data is processed by processing the pixel value of the main part (character part of “Guide for new product” in FIG. 5) extracted from the foreground image to make the brightness larger than the above threshold value. At the same time, the pixel value of the background portion is processed to reduce the luminance to the minimum luminance (for example, black). Further, from the overlapped data, a process is performed to make the luminance on the background image side of the portion where the main portion of the foreground image overlaps the background image smaller than the threshold value. In this case, the luminance of the entire background image is lower than the threshold value. Since it is small, no processing is performed.

When the processing process ends, the data control unit 2c passes the foreground image data that has undergone the processing process to the data display unit 2i, while the background image data that has undergone the processing process passes through the data communication unit 2h to the second projector. 3 to send.
The data display unit 2i modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the RGB colors based on the processed display data, and synthesizes the modulated light in the dichroic prism 48. Then, the combined light is enlarged and projected on the screen 4 in the projection unit 16.

  On the other hand, when the second projector 3 receives the display data transmitted from the first projector 2 via the data communication unit 3a, the data control unit 3b sends the received display data to the data storage unit 3c. The data is stored and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

  When the first projector 2 projects an image corresponding to the display data on the screen 4, the display position acquisition unit 2j acquires information on the projection positions of the image 50 and the image 51 and passes the information to the data control unit 2c. The data control unit 2c compares the acquired projection position information of the image 50 and the image 51, and when the projection positions of both are shifted, the projection position of the image 50 is the same as the projection position of the image 51. A control amount is calculated, and the projection position matching unit 2k is controlled by the calculated control amount. Thereby, as shown in an image 52 in FIG. 5, the image 50 projected by the first projector 2 and the image 51 projected by the second projector 3 are displayed so as to overlap each other on the screen 4. At this time, in the image 52, the main portion of the foreground image has a high luminance and the background portion has a minimum luminance (for example, black). Therefore, the main portion of the foreground image is a background image whose luminance is lower than the threshold value. Even if they overlap, they are clearly displayed.

Further, a second example shown in FIG. 6 will be described.
Here, it is assumed that the various settings of the first projector 2 are the same as in the example of FIG.
When a card-type storage medium is inserted into the insertion unit of the first display data acquisition unit 2a and the second display data acquisition unit 2b and a list of display data is displayed, data is displayed in accordance with a selection instruction from the system user. 6, the display data of the image 60 shown in FIG. 6 is selected via the first display data acquisition unit 2a, and the display data of the image 61 is selected via the second display data acquisition unit 2b. When display data is selected, the data control unit 2c reads the display data of the image 60 via the first display data acquisition unit 2a, and assigns an attribute indicating that it is a foreground image to the data storage unit 2d. To remember. Similarly, the display data of the image 61 is read out via the second display data acquisition unit 2b, and an attribute indicating that it is a background image is given to this and stored in the data storage unit 2d.

When the display data to which the attribute is given is stored in such a procedure, the data control unit 2c reads the stored display data and passes the read display data to the data analysis unit 2f.
The data analysis unit 2f first analyzes the display data of the foreground image and extracts the main part (here, the characters “Guidance of new product”). Further, the position information of the main part with respect to the entire image is also acquired. Thereby, the overlapping state of the main part of the foreground image and the background image is understood from the extracted position information of the main part. Further, the brightness of the main part of the image 60 that becomes the extracted foreground image and the brightness of the image 61 that becomes the background image are compared with a preset brightness threshold (for example, the median value of the displayable brightness range). . Here, it is assumed that the luminance of the main part of the foreground image is determined to be lower than the threshold and the luminance of the background image is higher than the threshold. The comparison result, the extraction result, and the data of the overlapping state are passed to the data processing unit 2g through the data control unit 2c together with the display data (pixel value data) as analysis result information.

  On the other hand, the data processing unit 2g processes display data based on the analysis result information. As shown in FIG. 6, since the luminance of the main part of the foreground image is smaller than the threshold and the luminance of the background image is larger than the threshold, the display data is processed from the overlapped data based on the comparison result. The position where the main part of the image and the background image overlap and the pixel value of the background image around it are processed so that the luminance is lower than the threshold value (62 in FIG. 6).

When the processing process ends, the data control unit 2c passes the foreground image data that has undergone the processing process to the data display unit 2i, while the background image data that has undergone the processing process passes through the data communication unit 2h to the second projector. 3 to send.
The data display unit 2i modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the RGB colors based on the processed display data, and synthesizes the modulated light in the dichroic prism 48. Then, the combined light is enlarged and projected on the screen 4 in the projection unit 16.

  On the other hand, when the second projector 3 receives the display data transmitted from the first projector 2 via the data communication unit 3a, the data control unit 3b sends the received display data to the data storage unit 3c. The data is stored and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

Here, the projection position matching process is the same as in the example of FIG.
Finally, as shown in an image 63 in FIG. 6, the image 60 projected by the first projector 2 and the image 62 projected by the second projector 3 are displayed overlapping each other on the screen 4. . At this time, in the image 63, the position where the main part of the foreground image and the background image overlap and the pixel value of the background image in the vicinity thereof are processed so that the luminance is lower than the threshold value, so the main part of the foreground image is Even if it overlaps with the background image, it is clearly displayed. Here, when the processing of the background image is not performed, the display of the main part of the foreground image becomes unclear due to the luminance of the background image, as in the image 64 shown in FIG.

Further, the flow of the operation process of the first projector 2 will be described with reference to FIG. FIG. 7 is a flowchart showing an operation process of the first projector 2.
As shown in FIG. 7, first, the process proceeds to step S100, where the data control unit 2c determines whether display data corresponding to the foreground image and the background image is selected by the data selection unit 2e, and determines that the selection has been made. If yes (Yes), the process proceeds to step S102. If not (No), the process waits until it is selected.

When the process proceeds to step S102, the data control unit 2c assigns the attribute of the foreground image or the background image to the selected display data and stores it in the data storage unit 2d, and the process proceeds to step S104.
In step S104, the data control unit 2c reads the two display data stored in the data storage unit 2d, transmits the read display data to the data analysis unit 2f, and proceeds to step S106.

In step S106, the data analysis unit 2f performs display data analysis processing, passes the analysis result information to the data control unit 2c, and proceeds to step S108.
In step S108, the data control unit 2c transmits display data and analysis result information from the data analysis unit 2f to the data processing unit 2g, and the process proceeds to step S110.
In step S110, the data processing unit 2g processes the display data based on the analysis result information from the data analysis unit 2f, passes the processed display data to the data control unit 2c, and proceeds to step S112.

In step S112, the display data of the foreground image (which may be a background image depending on the setting) that has undergone the processing process is transmitted to the data display unit 2i by the data control unit 2c, and the background image that has undergone the processing process (the foreground image depending on the setting). Display data (which may be an image) is transmitted to the second projector 3 via the data communication unit 2h, and the process proceeds to step S114.
In step S114, the data display unit 2i projects an image of the display data on the screen 4 based on the display data of the foreground image that has undergone the processing, and the process proceeds to step S116.

In step S116, the display position acquisition unit 2j acquires display position information of the image projected on the screen 4, passes the acquired position information to the data control unit 2c, and proceeds to step S118.
In step S118, the data control unit 2c determines whether or not the projection positions match based on the position information acquired from the display position acquisition unit 2j. If it is determined that they match (Yes), step S118 is performed. The process proceeds to S100, and if not (No), the process proceeds to Step S120.

When the process proceeds to step S120, the data control unit 2c calculates a control amount for correcting the display position based on the position information acquired from the display position acquisition unit 2j, and the projection position matching unit 2k is calculated based on the calculated control amount. Control is performed to correct the display position, and the process proceeds to step S116.
Furthermore, based on FIG. 8, the flow of the operation processing of the data analysis unit 2f in the first projector 2 will be described. FIG. 8 is a flowchart showing an operation process of the data analysis unit 2 f in the first projector 2.

As shown in FIG. 8, first, the process proceeds to step S200, where it is determined whether display data has been acquired from the data control unit 2c. If it is determined that the display data has been acquired (Yes), the process proceeds to step S202; If (No), wait until acquisition.
When the process proceeds to step S202, based on the extraction condition, the main part extraction process and the main part position information acquisition process are performed from the display data to be the foreground image and the background image, and the process proceeds to step S204.

In step S204, based on the acquired position information of the main part, the overlapping state of the foreground image and the background image is determined, and the process proceeds to step S206.
In step S206, the brightness value of the background image is compared with a preset brightness threshold, and the process proceeds to step S208.
In step S208, the data of the extraction result, the overlap state, and the comparison result are transmitted to the data control unit together with the display data, and the process proceeds to step S200.

Furthermore, based on FIG. 9, the flow of operation processing of the data processing unit 2g in the first projector 2 will be described. FIG. 9 is a flowchart showing an operation process of the data processing unit 2g in the first projector 2.
As shown in FIG. 9, first, the process proceeds to step S300, where it is determined whether or not display data and analysis result information have been acquired from the data control unit 2c. If not (No), wait until acquisition.

When the process proceeds to step S302, the foreground image display data is processed based on the analysis result information, and the process proceeds to step S304.
In step S304, based on the analysis result information, the display data of the background image is processed and the process proceeds to step S306.
In step S306, the display data subjected to the processing is transmitted to the data control unit, and the process proceeds to step S300.

Further, the flow of operation processing of the second projector 3 will be described with reference to FIG. FIG. 10 is a flowchart showing an operation process of the second projector 3.
As shown in FIG. 10, the process first proceeds to step S400, where the data control unit 3b determines whether or not display data from the first projector 2 has been received via the data communication unit 3a. If it is determined (Yes), the process proceeds to step S402. If not (No), the process waits until reception.

When the process proceeds to step S402, the data control unit 3b stores the received display data in the data storage unit 3c and transmits it to the data display unit 3d, and the process proceeds to step S404.
In step S404, the data display unit 3d projects an image of the display data on the screen 4 based on the display data subjected to the processing, and the process proceeds to step S400.

  As described above, according to the image display system 1 in the first embodiment, the data analysis unit 2f in the first projector 2 analyzes the two display data corresponding to the foreground image and the background image, respectively, and extracts the main part. It is possible to compare the foreground image and the background image with each other, the background image brightness and the threshold value, and the data processing unit 2g can increase the brightness of the main part based on the analysis result information. It is possible to process the display data such as reducing the brightness of the background image around the position where the main part of the foreground image overlaps with the background image. In the projector 2 and the second projector 3, for example, the foreground image is projected on the screen 4 and the background image is projected on the screen 4. It is possible to display the main portion of the foreground image is displayed superimposed two images in a state not to obscure.

The display positions of the two images projected by the first projector 2 and the second projector 3 can be matched by the data control unit 2c, the display position acquisition unit 2j, and the projection position matching unit 2k.
In the first embodiment, the first projector 2 corresponds to the first light projection display device according to any one of the inventions 1, 2, 3, 10, 12, 18, 25, 31, 38, and 44. .

In the first embodiment, the first display data acquisition unit 2a and the second display data acquisition unit 2b correspond to any one of 2, 3, and 12 display data acquisition means.
In the first embodiment, the data analysis unit 2f corresponds to the display data analysis unit according to any one of the inventions 2, 3, 5, 12, and 13.
In the first embodiment, the data processing unit 2g corresponds to any one of the display data processing means of the inventions 1, 2, 3, 5-9, and 11-17.

In the first embodiment, the foreground image and background image setting processing in the data selection unit 2e corresponds to the image setting means of the invention 5 or 13.
In the first embodiment, the process of determining the overlapping state of the images in the data analyzing unit 2f corresponds to any one of the overlapping state determining means of the eighth, ninth, sixteenth, and seventeenth aspects.

In the first embodiment, the process of matching the projection positions of the two images by the data control unit 2c, the display position acquisition unit 2j, and the projection position matching unit 2k is performed by the display position matching unit according to the tenth or eighteenth aspect of the invention. Correspond.
[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. FIGS. 11-15 is a figure which shows 2nd Embodiment of the image display system based on this invention.

First, the configuration of an image display system according to the second embodiment of the present invention will be described with reference to FIG. FIG. 11 is an overview diagram showing a configuration of an image display system 5 according to the second embodiment of the present invention.
The image display system 5 includes two second projectors 3 capable of optically projecting an image corresponding to the display data based on the display data, and a display data processing device 6 capable of processing the display data based on the display data. And a screen 4 for displaying the light-projected image. Further, the display data processing device 6 and the two second projectors 3 are connected to each other via the communication cable 100 and the hub 200 so that they can communicate with each other. The display data processing device 6 displays the display after the processing. Data can be transmitted to the two second projectors 3 via the communication cable 100 and the hub 200, respectively.

Further, a detailed configuration of the display data processing device 6 will be described with reference to FIG. FIG. 12 is a block diagram showing a detailed configuration of the display data processing device 6.
As shown in FIG. 12, the display data processing device 6 includes a display data acquisition unit 6 a that acquires display data via a card-type storage medium and the like, and data control that controls each component of the display data processing device 6. Arbitrary display data can be selected from the display unit 6b, the data storage unit 6c that stores display data acquired via the display data acquisition unit 6a and data necessary for each process, and display data stored in the storage medium Data selection unit 6d, data analysis unit 6e for analyzing the display data selected by data selection unit 6d, data processing unit 6f for processing display data based on the analysis result of data analysis unit 6e, and processing And a data communication unit 6g for performing data communication with the second projector 3 such as transmitting the display data having undergone the above to the second projector 3 and the like. To have.

The display data acquisition unit 6a has a function of making it possible to acquire data stored in the storage medium from a card-type storage medium or the like via electrical contact, magnetic contact, or the like.
The data control unit 6b acquires data from the storage medium via the display data acquisition unit 6a, stores the acquired data in the data storage unit 6c, or reads the data stored in the data storage unit 6c. It has a function for overall control of data exchange between each component, such as sending the read data to each component, and relaying the data processed in each component to other components .

The data storage unit 6c stores the data acquired via the display data acquisition unit 6a, the data communication unit 6g, etc. in a memory according to the control command of the data control unit 6b, or according to the control command of the data control unit 6b. And has a function of outputting data stored in the memory.
The data selection unit 6d has a function of arbitrarily selecting display data to be projected on the two second projectors 3 from display data stored in the storage medium. In the present embodiment, any one of the selected display data can be set as a foreground image and the other as a background image. Accordingly, the data control unit 6b adds the attributes of the foreground image to one of the two selected display data and the background image to the other according to the setting contents, and stores them in the data storage unit 6c.

  The data analysis unit 6e has a function of analyzing display data acquired via the data control unit 6b. In the present embodiment, the acquired display data is foreground or background setting information, format information indicating what kind of application software is supported, information on main parts (character data, etc.) included in the display data, It is possible to obtain information on the overlapping state when two pieces of display data are overlaid by analysis. Furthermore, in this embodiment, it has the function to extract a main part from display data based on the information of the said main part. In addition, each display data that has undergone the extraction process is converted into a format (pixel value data) that can be projected by the projector, and the brightness of the foreground image and the background image is calculated based on the pixel value data. A process of comparing with a prepared threshold value is performed. Each analysis information described above, the pixel value data composed of the extracted main part, and the luminance comparison result are transmitted to the data control unit 6b as analysis result information.

  The data processing unit 6f displays each display based on a total of two pieces of display data, which are obtained via the data control unit 6b and projected one by one in each second projector 3, and analysis result information of the data analysis unit 6e. Process the data. In this embodiment, the luminance information of each pixel value data is processed so that the foreground image is not obscured by the luminance of the background image from the overlapping state of the foreground image and the background image, the luminance comparison result, and the like. . In addition, when the main part is not included in the background image, it is possible to perform a processing process in which the peripheral area including the main part of the foreground image in the background image is a black image (image having the minimum luminance). is there. In addition, various processing processes such as reducing the brightness of the entire background image and increasing the brightness of the main part of the foreground image are possible. In the present embodiment, the processing content can be flexibly set according to the display data for these processing processes.

Display data (pixel value data) subjected to the processing is transmitted to the data control unit 6b. Note that when it is not necessary to perform the processing, the display data (pixel value data) is transmitted to the data control unit 6b as it is without being processed.
The data communication unit 6g transmits display data for the second projector 3 processed by the data processing unit 6f to each of the two second projectors 3 via the communication cable, or from the second projector 3 Data communication with an external device connected via the communication cable 100 and the hub 200, such as receiving transmitted data, is controlled.

  Here, the display data processing device 6 includes a processor (not shown), a RAM (Random Access Memory), and a ROM (Read Only Memory) in which a dedicated program is stored, and the processor executes the dedicated program. By doing so, the function of each of the above parts is achieved. Further, in the present embodiment, the above-described units are mixed with ones that perform their functions only with dedicated programs, and those that perform their functions by controlling hardware with dedicated programs.

Further, since the detailed description of the second projector 3 has already been described in the first embodiment, the description thereof will be omitted.
Hereinafter, a more specific operation of the image display system 5 will be described with reference to FIGS. 13 and 14. FIG. 13 is a diagram illustrating a third example in which the display data is processed and two projection images are superimposed and displayed. FIG. 14 is a fourth example in which the display data is processed and two projection images are superimposed and displayed. It is a figure which shows the example of.

First, a third example shown in FIG. 13 will be described.
Here, the data selection unit 6d selects one of the display data acquired via the display data acquisition unit 6a as the foreground image and the other as the background image. Here, it is assumed that the display data of the image 130 shown in FIG. 13 is selected as the foreground image and the display data of the image 131 is selected as the background image by the data selection unit 6d according to the selection instruction of the system user. In this embodiment, the display data is selected by selecting a file name list or thumbnail that is recognized as display data from the storage contents of a storage medium such as a card-type storage medium, CD-R, or DVD-R. A list is displayed on a display unit (not shown), and arbitrary display data is selected from the list. Further, which of the two second projectors 3 projects the foreground image and which projects the background image can be set by the unique information of each second projector 3 or the like.

  When the display data of the image 130 and the image 131 is selected from the display data displayed in a list, the data control unit 6b reads the display data of the image 130 and the image 131 via the display data acquisition unit 6a. An attribute indicating the foreground image is assigned to the display data 130, and an attribute indicating the background image is assigned to the display data of the image 131, and each is stored in the data storage unit 6c.

  When the display data to which the attribute is given is stored in such a procedure, the data control unit 6b reads out the stored display data and passes the read display data to the data analysis unit 6e. The data analysis unit 6e first analyzes the foreground data and the background data, and extracts the main part. In the present embodiment, for extracting the main part, information (character data, changes in brightness, brightness, etc.) for determining the main part in the display data is set in advance, and characters, images, etc. are converted into data based on this information. Automatically extracted by analysis or pattern recognition. The extraction of the main part may be performed in accordance with a direct instruction from the system user using an input device or the like. Here, as shown in FIG. 13, the character portion in the display data of the image 130 which is the foreground image is extracted as the main portion. On the other hand, it is determined that the main part is not included in the image 131 that is the background image, and the main part is not extracted. Whether or not to extract the main part may be set for each display data. For example, display data set not to perform extraction processing is handled as one image as a whole. In the present embodiment, position information of main parts with respect to the entire image is also acquired. Thereby, the overlapping state of the main part of the foreground image and the background image can be understood from the extracted position information of the main part.

  Further, the luminance of the main part of the image 130 that is the extracted foreground image and the luminance of the image 131 that is the background image (for example, the average luminance of the entire image), and a preset luminance threshold value (for example, displayable luminance) The median of the range). For this reason, the luminance values of the main part of the foreground image and the background image used for the comparison need to be determined by calculating their average values and the like. In this comparison process, display data in a file format specific to application software that is not pixel value data is obtained by using the luminance values for the three primary colors of RGB (red, green, blue) light for all pixels of the image. It is converted into stored data (pixel value data). Here, it is assumed that the luminance of the main part of the image 130 and the luminance of the background image are both determined to be smaller than the threshold value by the comparison. These comparison results, extraction results, and overlapping state data are passed to the data processing unit 6f via the data control unit 6b together with display data (pixel value data) as analysis result information.

  On the other hand, the data processing unit 6f processes the display data based on the analysis result information. As shown in FIG. 13, the display data is processed by first processing the pixel value of the main part extracted from the foreground image (the character part of “New Product Guide” in FIG. 13) to make the luminance larger than the above threshold. At the same time, the pixel value of the background portion is processed to reduce the luminance to the minimum luminance (for example, black). Further, in the example of FIG. 13, the pixel value of the entire background image is processed to make the luminance smaller than the threshold (here, the luminance is reduced to the minimum luminance so that it can be visually recognized without reducing the luminance). ).

When the processing process ends, the data control unit 2c transmits the display data of the foreground image that has undergone the processing process to one of the second projectors 3 via the data communication unit 6g, and the data of the background image that has undergone the processing process as data. It transmits to the other of the 2nd projector 3 via the communication part 2h.
When one of the second projectors 3 receives the display data of the foreground image transmitted from the display data processing device 6 via the data communication unit 3a, the data control unit 3b stores the received display data in the data storage. The data is stored in the unit 3c and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

  On the other hand, when the other of the second projectors 3 receives the display data of the background image transmitted from the display data processing device 6 via the data communication unit 3a, the data control unit 3b receives the received display data. The data is stored in the data storage unit 3c and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

  Accordingly, as shown in an image 132 in FIG. 13, an image projected by one of the second projectors 3 and an image projected by the other of the second projectors 3 are displayed so as to overlap each other on the screen 4. The At this time, in the image 132, the main part of the foreground image is increased in luminance, the background part thereof is set to the minimum luminance, and the luminance of the entire background image is set lower than the threshold value. Even if they overlap, they are clearly displayed.

Further, a fourth example shown in FIG. 14 will be described.
Here, it is assumed that the display data of the image 140 shown in FIG. 14 is selected as the foreground image and the display data of the image 141 is selected as the background image by the data selection unit 6d according to the selection instruction of the system user.
When the display data is selected, the data control unit 6b reads the display data of the image 140 and the image 141 via the display data acquisition unit 6a, and gives the display data of the image 140 an attribute indicating that it is a foreground image. The display data of the image 141 is given an attribute indicating that it is a background image and stored in the data storage unit 6c.

  When the display data to which the attribute is given is stored in such a procedure, the data control unit 6b reads out the stored display data and passes the read display data to the data analysis unit 6e. The data analysis unit 6e first analyzes the foreground data and the background data, and extracts the main part. Here, as shown in FIG. 14, the mug image in the display data of the image 140 that is the foreground image is extracted as a main part (140a in FIG. 14), while the saucer in the display data of the image 141 that is the background image Are extracted as main parts (141a in FIG. 14). In the present embodiment, position information of main parts with respect to the entire image is also acquired. Thereby, the overlapping state of the main part of the foreground image (hereinafter referred to as the foreground part) and the main part of the background image (hereinafter referred to as the background part) is understood from the extracted position information of the main part.

  Further, the brightness of the extracted foreground portion and the brightness of the background portion are compared with a preset brightness threshold value (for example, the median value of the displayable brightness range). Here, it is assumed that the brightness of the foreground part and the brightness of the background part are determined to be larger than the threshold value by the comparison. These comparison results, extraction results, and overlapping state data are passed to the data processing unit 6f via the data control unit 6b together with display data (pixel value data) as analysis result information.

  On the other hand, the data processing unit 6f processes the display data based on the analysis result information. As shown in FIG. 14, the processing of the display data is based on the comparison result, since the brightness of the foreground part and the brightness of the background part are larger than the threshold, the brightness of the image other than the foreground part in the foreground data is set to the minimum brightness (FIG. 14). 142), the pixel value of each data is processed so that the luminance of the image other than the background portion in the background data is set to the minimum luminance (143 in FIG. 14). Furthermore, from the overlapped data, the portion where the foreground portion and the background portion overlap in the background portion and the surrounding pixel values are processed so that the luminance of the image of that portion becomes the minimum luminance value (FIG. 14). 141b).

When the processing process ends, the data control unit 6b transmits the display data of the foreground image that has undergone the processing process to one of the second projectors 3 via the data communication unit 6g, and the display data of the background image that has undergone the processing process. Is transmitted to the other of the second projector 3 via the data communication unit 6g.
When one of the second projectors 3 receives the display data of the foreground image transmitted from the display data processing device 6 via the data communication unit 3a, the data control unit 3b stores the received display data in the data storage. The data is stored in the unit 3c and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

  On the other hand, when the other of the second projectors 3 receives the display data of the background image transmitted from the display data processing device 6 via the data communication unit 3a, the data control unit 3b receives the received display data. The data is stored in the data storage unit 3c and transferred to the data display unit 3d. Similarly to the data display unit 2i, the data display unit 3d modulates the light from the light source 10 in the liquid crystal light valves 40R to 40B corresponding to the respective RGB colors based on the display data, and the dichroic light of each of the modulated colors. The light is combined by the prism 48 and the combined light is enlarged and projected onto the screen 4 by the projection unit 16.

  Thereby, as shown in an image 144 in FIG. 14, an image projected by one of the second projectors 3 and an image projected by the other of the second projectors 3 are displayed so as to overlap each other on the screen 4. The At this time, in the image 144, the brightness of the image part other than the foreground part in the foreground image is set to the minimum brightness, the brightness of the image part other than the background part in the background image is set to the minimum brightness, and further, the foreground part and the background part in the background part Since the luminance of the image portion where and the surrounding image portions overlap is set to the minimum luminance value, both are clearly displayed even if the foreground portion and the background portion overlap.

Further, the flow of operation processing of the display data processing device 6 will be described with reference to FIG. FIG. 15 is a flowchart showing the operation process of the display data processing device 6.
As shown in FIG. 15, the process first proceeds to step S500, where the data control unit 6b determines whether display data corresponding to the foreground image and the background image is selected by the data selection unit 6d, and determines that the selection has been made. If yes (Yes), the process proceeds to step S502. If not (No), the process waits until it is selected.

When the process proceeds to step S502, the data control unit 6b assigns the attribute of the foreground image or the background image to the selected display data and stores them in the data storage unit 6c, and the process proceeds to step S504.
In step S504, the data control unit 6b reads the two display data stored in the data storage unit 6c, transmits the read display data to the data analysis unit 6e, and proceeds to step S506.

In step S506, the data analysis unit 6e performs display data analysis processing, passes the analysis result information to the data control unit 6b, and proceeds to step S508.
In step S508, the data control unit 6b transmits display data and analysis result information from the data analysis unit 6e to the data processing unit 6f, and the process proceeds to step S510.
In step S510, the data processing unit 6f processes the display data based on the analysis result of the data analysis unit 6b, passes the processed display data to the data control unit 6b, and proceeds to step S512.

  In step S512, the data control unit 6b transmits display data of the foreground image (which may be a background image depending on settings) that has undergone the processing process to one of the two second projectors via the data communication unit 6g. Further, the display data of the background image (which may be a foreground image depending on the setting) that has undergone the processing is transmitted to the other of the second projector 3 via the data communication unit 6g, and the process proceeds to step S500.

Here, detailed operation processing in the data analysis unit 6e and the data processing unit 6f is the same as that in the flowcharts of FIGS. 8 and 9 in the first embodiment, and a description thereof will be omitted.
As described above, according to the image display system 5 in the second embodiment, the data analysis unit 6e in the display data processing unit 6 analyzes the two display data respectively corresponding to the foreground image and the background image, and extracts the main part. The foreground image and the background image can be overlapped, the background image brightness and the threshold can be compared, and the data processing unit 6f can increase the brightness of the main part based on the analysis result information. It is possible to perform display data processing such as reducing the brightness of the image portion of the background image in which the main portion of the foreground image and the main portion of the background image overlap and the surrounding image portion. In the second projector 3 having two units, for example, the foreground image is projected on the screen 4 and the background image is projected on the screen 4 on the other side. Ri, it is possible to display the main part of the main portion and the background image of the foreground image is displayed superimposed two images in a state not to obscure respectively.

In the second embodiment, the display data processing device 6 corresponds to any one of the display data processing devices of inventions 4, 19 to 24, 32 to 37, 45 and 46.
In the second embodiment, the display data acquisition unit 6a corresponds to the display data acquisition unit of the invention 4 or 19.
In the second embodiment, the data analysis unit 6e corresponds to the display data analysis unit according to any one of the inventions 4, 5, 19, and 20.

Moreover, in the said 2nd Embodiment, the data process part 6f respond | corresponds to the display data processing means of any one of invention 4-9, 19-24.
In the second embodiment, the foreground image and background image setting processing in the data selection unit 6d corresponds to the image setting means of the invention 5 or 20.
In the second embodiment, the process of determining the image overlap state in the data analysis unit 6e corresponds to any one of the overlap state determination means of the inventions 8, 9, 23, and 24.

  In the above embodiment, the two images respectively projected by the two projectors are displayed so as to overlap each other on the display portion (screen 4). However, the present invention is not limited to this. The projector may be configured to include two image projection units (data display units) that can be controlled independently, and is not limited to the configuration of two projectors, and each projector may project a plurality of (three or more) projectors. A plurality of (three or more) images to be displayed may be superimposed on the display portion. Here, when a plurality of (three or more) images are displayed in an overlapping manner, the overlapping order of the images is set, and the overlapping state is determined based on the overlapping order, and each image is displayed as another image. It is desirable to process the data so as not to obscure.

In the above-described embodiment, the projector and the display processing device are connected to be communicable with each other by the communication cable 100. However, the present invention is not limited to this, and may be configured to be communicably connected to each other by existing wireless communication means. good. In this case, it is possible to reduce labor for connecting the devices with the communication cable 100.
Moreover, in the said embodiment, although it was set as the structure which acquires display data via a card-type storage medium, not only this but display data may be beforehand memorize | stored in a data storage part, data A configuration may be adopted in which display data is acquired from an external device connected to the network via a communication unit.

1 is an overview diagram showing a configuration of an image display system 1 according to a first embodiment of the present invention. 2 is a block diagram showing a detailed configuration of a first projector 2. FIG. FIG. 3 is a diagram illustrating an optical configuration of a data display unit 2 i in the first projector 2. 4 is a block diagram showing a configuration of a second projector 3. FIG. It is a figure which shows the 1st example which processes display data and displays two projection images in piles. It is a figure which shows the 2nd example which processes display data and displays two projection images in piles. 4 is a flowchart showing an operation process of the display data processing device 6. 4 is a flowchart showing an operation process of a data analysis unit 2f in the first projector 2. 4 is a flowchart showing an operation process of a data processing unit 2g in the first projector 2. 7 is a flowchart showing an operation process of the second projector 3. It is a general-view figure which shows the structure of the image display system 5 which concerns on the 2nd Embodiment of this invention. 3 is a block diagram showing a detailed configuration of a display data processing device 6. FIG. It is a figure which shows the 3rd example which processes display data and displays two projection images in piles. It is a figure which shows the 3rd example which processes display data and displays two projection images in piles. 4 is a flowchart showing an operation process of the display data processing device 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,5 ... Image display system, 2 ... 1st projector, 2a ... 1st display data acquisition part, 2b ... 2nd display data acquisition part, 2c ... Data control part, 2d ... Data storage part, 2e ... Data selection part 2f ... Data analysis unit, 2g ... Data processing unit, 2h ... Data communication unit, 2i ... Data display unit, 2j ... Display position acquisition unit, 2k ... Projection position matching unit, 3 ... Second projector, 3a ... Data communication Unit, 3b ... data control unit, 3c ... data storage unit, 3d ... data display unit, 4 ... screen, 6 ... display data processing device, 6a ... display data acquisition unit, 6b ... data control unit, 6c ... data storage unit, 6d ... Data selection unit, 6e ... Data analysis unit, 6f ... Data processing unit, 6g ... Data communication unit, 100 ... Communication cable, 200 ... Hub, 300 ... Optical configuration

Claims (17)

A system for displaying two images to be projected in a superimposed manner on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
A second light projection type display device capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
Display data processing means capable of processing each display data based on display data respectively projected from the first light projection display device and the second light projection display device;
An image display system characterized in that an image projected from the first light projection type display device and an image projected from the second light projection type display device are displayed superimposed on the display portion. A system for displaying two images to be projected in a superimposed manner on a display portion,
Display data acquisition means for acquiring first display data constituting the first image and second display data constituting the second image;
Display data analysis means for analyzing the first display data and the second display data acquired by the display data acquisition means;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on the first display data that has undergone the processing;
A second light projection type display device capable of independently controlling the light projection display process on the display portion of the second image based on the second display data that has undergone the processing,
An image characterized in that the first image and the second image projected from the first light projection display device and the second light projection display device are superimposed on the display target portion. Display system. A system for displaying two images to be projected in a superimposed manner on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on first display data constituting the first image;
A second light projection type display device capable of independently controlling the light projection display process on the display portion of the second image based on the second display data constituting the second image,
The first light projection display device includes:
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmission means for transmitting the second display data that has undergone the processing to the second light projection type display device,
The second light projection type display device includes:
Comprising display data receiving means for receiving second display data transmitted from the first light projection display device;
The first image and the second image respectively projected from the first light projection display device and the second light projection display device and corresponding to the first display data and the second display data that have undergone the processing. An image display system characterized in that two images are displayed on the display target portion. A system for displaying two images to be projected in a superimposed manner on a display portion,
A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on first display data constituting the first image;
A second light projection type display device capable of independently controlling light projection display processing on the display portion of the second image based on second display data constituting the second image;
A display data processing device,
The display data processing device includes:
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmitting means for transmitting the first display data and the second display data that have undergone the processing to the first light projection display device and the two light projection display device, respectively,
The first light projection display device includes first display data receiving means for receiving first display data transmitted from the display data processing device,
The second light projection display device includes second display data receiving means for receiving second display data transmitted from the display data processing device,
The first image and the second image respectively projected from the first light projection display device and the second light projection display device and corresponding to the first display data and the second display data that have undergone the processing. An image display system characterized in that two images are displayed on the display target portion. Image setting means capable of setting one of the first image and the second image as a foreground image and the other as a background image;
The display data analyzing means is capable of extracting data of a main image portion from the display data, and calculating the degree of brightness of the background image based on the display data of the background image. Compare the degree with a predetermined threshold,
The display data processing means determines that the brightness level of the main image portion of the foreground image is lower than the predetermined threshold value when the brightness level of the background image is smaller than the predetermined threshold value from the comparison result. The image display system according to any one of claims 2 to 4, wherein display data corresponding to the foreground image is processed so as to increase.   The display data processing means is arranged such that when the brightness level of the background image is smaller than the predetermined threshold value, the brightness level of the main image portion in the foreground image is larger than the predetermined threshold value. In addition, the display data corresponding to the foreground image is processed so that the degree of brightness of a background portion other than the main image portion in the foreground image is smaller than the predetermined threshold. 5. The image display system according to 5.   The display data processing means is configured such that when the degree of brightness of the background image is larger than the predetermined threshold, the degree of brightness of the background image is smaller than the predetermined threshold. 7. The image display system according to claim 5 or 6, wherein display data corresponding to is processed. Overlap state determination means for determining an overlap state of the first image and the second image on the display portion;
The image display system according to any one of claims 2 to 6, wherein the display data processing unit performs processing of the display data based on a determination result of the overlap state determination unit.   The display data processing means, based on the determination result of the overlap state determination means, an image area of a predetermined range including a portion where the main image portion of the foreground image and the background image overlap and the vicinity thereof in the background image, 9. The image display system according to claim 8, wherein display data corresponding to the background image is processed so that a degree of brightness of the image area is smaller than the predetermined threshold value.   Display position matching that matches the display position on the display portion between the first image projected from the first light projection display device and the second image projected from the second light projection display device. The image display system according to claim 1, further comprising a unit. A system for displaying a plurality of light-projected images superimposed on a display portion,
A plurality of light projection display devices capable of independently controlling light projection display processing on the display portion of the image based on display data constituting the image;
Display data processing means for processing each display data based on display data corresponding to each of the plurality of light projection display devices,
An image display system, wherein a plurality of images corresponding to a plurality of display data subjected to the processing process and projected by the plurality of light projection type display devices are displayed superimposed on the display target portion. A first light projection type display device capable of independently controlling light projection display processing of the first image on the display portion based on first display data constituting the first image; and a second image A second light projection type display device capable of independently controlling light projection display processing on the display portion of the second image based on the second display data constituting the first light projection type, The first image projected from the display device and the second light projection type display device, the first image corresponding to the first display data and the second display data respectively processed through the first light projection type display device, and The light projection type display device can be applied to a system that displays the second image superimposed on the display target portion.
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmitting means for transmitting the second display data that has undergone the processing to the second light projection display device, and a light projection display device. A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on the first display data constituting the first image; and a second image A second light projection type display device capable of independently controlling the light projection display processing of the second image on the display portion based on the second display data constituting the display data processing device, The first display data projected from the first light projection display device and the second light projection display device and corresponding to the first display data and the second display data respectively processed through the display data processing device. The display data processing apparatus applicable to a system that displays an image and the second image on the display target portion,
Display data acquisition means for acquiring the first display data and the second display data;
Display data analysis means for analyzing the first display data and the second display data;
Display data processing means for processing the first display data and the second display data based on the analysis result of the display data analysis means;
Display data transmitting means for transmitting the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. Display data processing device. A first light projection type display device capable of independently controlling light projection display processing of the first image on the display portion based on first display data constituting the first image; and a second image A second light projection type display device capable of independently controlling light projection display processing on the display portion of the second image based on the second display data constituting the first light projection type, The first image projected from the display device and the second light projection type display device, the first image corresponding to the first display data and the second display data respectively processed through the first light projection type display device, and A computer-executable program for controlling the light projection display device in a system that displays the second image superimposed on the display portion,
A display data acquisition step of acquiring the first display data and the second display data;
A display data analysis step for analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the display data analysis step;
A display data transmission step of transmitting the second display data that has undergone the processing process to the second light projection display device, and a light projection display device control program. A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on the first display data constituting the first image, and a second image A second light projection type display device capable of independently controlling light projection display processing of the second image on the display portion based on the second display data to constitute, and a display data processing device, The first display data projected from the first light projection display device and the second light projection display device and corresponding to the first display data and the second display data respectively processed through the display data processing device. A computer-executable program for controlling the display data processing device in a system for displaying an image and the second image superimposed on the display portion,
A display data acquisition step of acquiring the first display data and the second display data;
A data analysis step of analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the data analysis step;
A display data transmission step of transmitting the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. Display data processor control program to be executed. A first light projection type display device capable of independently controlling light projection display processing of the first image on the display portion based on first display data constituting the first image; and a second image A second light projection type display device capable of independently controlling light projection display processing on the display portion of the second image based on the second display data constituting the first light projection type, The first image projected from the display device and the second light projection type display device, the first image corresponding to the first display data and the second display data respectively processed through the first light projection type display device, and A method for controlling the light projection display device in a system in which the second image is displayed on the display portion,
A display data acquisition step of acquiring the first display data and the second display data;
A display data analysis step for analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the display data analysis step;
A display data transmission step of transmitting the second display data that has undergone the processing process to the second light projection type display device, and a method for controlling the light projection type display device. A first light projection type display device capable of independently controlling light projection display processing on the display portion of the first image based on the first display data constituting the first image, and a second image A second light projection type display device capable of independently controlling light projection display processing of the second image on the display portion based on the second display data to constitute, and a display data processing device, The first display data projected from the first light projection display device and the second light projection display device and corresponding to the first display data and the second display data respectively processed through the display data processing device. A method for controlling the display data processing device in a system for displaying an image and the second image on the display target portion,
A display data acquisition step of acquiring the first display data and the second display data;
A data analysis step of analyzing the first display data and the second display data;
A display data processing step for processing the first display data and the second display data based on the analysis result in the data analysis step;
A display data transmission step of transmitting the first display data and the second display data that have undergone the processing process to the first light projection display device and the two light projection display device, respectively. Display data processing apparatus control method

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