System and method for constituting big screen multi-point touch screen
A multi-touch screen, large-screen technology, applied in character and pattern recognition, input/output process of data processing, instruments, etc., can solve the problems of high cost of touch screen and difficult to popularize the use of large-size multi-touch screen.
Inactive Publication Date: 2008-10-08
GUANGZHOU CHENGFENG INFORMATION TECH
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At present, there is a huge demand for large-size multi-touch screens in fields such as military sand tables and electronic entertainment games, but due to manufacturing costs, large-size touch screens are very expensive, making it difficult to popularize the use of large-size multi-touch screens
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[0034] The invention provides a system and method for constructing a large-screen multi-point touch screen, which utilizes hardware such as a relatively cheap camera device and projection equipment, and computer image processing software to realize a large-screen multi-point touch screen, thereby improving the large-screen multi-point touch screen system. flexibility, but also greatly reduce manufacturing costs.
[0035] figure 1 It is a flowchart of an embodiment of a method for constructing a large-screen multi-touch screen:
[0036] Step S01, pre-processing the image to be projected; performing necessary pre-processing for large-screen projection;
[0037] Step S02, projecting the preprocessed image onto the touch screen for fusion; projection and fusion on the large screen into a complete clear image;
[0038] Step S03, collecting images on the touch screen; that is, collecting images when the user touches the large screen;
[0039] Step S04, using image analysis techno...
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The invention provides a system and a method of constructing a multi-point touch screen of large screen. The system includes: a projection image preprocessing module, a projection device, a touch screen, an image collecting device, an image analyzing and processing module. The method includes the following steps: preprocessing the image to be projected, projecting the processed image on the touch screen to fuse, collecting the image on the touch screen, using image analysis technique to analyze the collected image, carrying out corresponding process to the image according to the analysis result of the image and generating new image, projecting and preprocessing the generated new image. The invention uses the cameras, projection devices and other hardware with low cost, and image processing software of a computer to achieve a multi-point touch screen of large screen, which improves the flexibility of multi-point touch screen of large screen, and reduces manufacturing cost largely.
Description
technical field [0001] The invention relates to the field of image display based on image analysis technology, in particular to a system and method for constructing a large-screen multi-point touch screen. Background technique [0002] At present, the known touch screen system is constructed by the principle of magnetic induction or piezoelectric induction. With the continuous improvement of human-computer interaction requirements, a multi-point touch screen system has appeared, which is now widely used on small screen devices such as mobile phones or game consoles. . At present, there is a huge demand for large-size multi-touch screens in fields such as military sand tables and electronic entertainment games. However, due to the problem of manufacturing costs, the cost of large-size touch screens is very expensive, making it difficult to popularize the use of large-size multi-touch screens. Contents of the invention [0003] The technical problem to be solved by the pres...
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Inventor 杨锋李伟军吴宇晖
Owner GUANGZHOU CHENGFENG INFORMATION TECH