A Reference Point Recognition Method Applied to Video Projection Target Positioning
A technology of target positioning and identification method, applied in image analysis, image enhancement, instrument and other directions, can solve the problem of low positioning accuracy, and achieve the effect of small calculation amount, strong stability, and good error correction and recovery ability.
Active Publication Date: 2018-05-25
WUHAN UNIV +1
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Problems solved by technology
[0005] Aiming at the problem of low positioning accuracy of the video projection moving target positioning system in large-scale physical space, a high-precision and high-robust infrared reference point encoding method applied to the moving target positioning system of large-scale physical space video projection is designed. Minimize the number of reference points to provide a good basis for reference point identification
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[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples of implementation. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.
[0021] The infrared light source is binarized on the image to form a number of scattered bright blocks. Each bright block is composed of pixels with a pixel value of 1, and the pixel value of the non-bright blocks is 0. figure 1 As an example of bright block distribution, each bright block is replaced by a black dot, and each bright block forms an area with other bright blocks around it, which is called a reference point, and each reference point is represented by the number of bright blocks it contains Numbers are labels, which are recorded as 3, 4, 5, and 6 from left to right. The minimum distance between bright blocks in non-same area is greater than 3 / 2 times of the...
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A reference point identifying method applied to positioning of a video projection target. Aiming at the problem of low positioning accuracy of a large-range physical space video projection movement target positioning system, the present invention designs an infrared reference point encoding mode which has high accuracy and high robustness and is applied to the large-range physical space video projection movement target positioning system; and aiming at the problem of a low positioning speed of the large-range physical space video projection movement target positioning system, the present invention discloses the infrared reference point identifying method which is efficient and robust and is applied to the large-range physical space video projection movement target positioning system. The reference point identifying method avoids discomfort which is possibly generated for people in the positioning process, is easy to carry out identification in the video acquisition process, has a small image processing calculation quantity, is easy to carry out installation and debugging, has high stability and does not influence game experience.
Description
technical field [0001] The method is suitable for video projection moving target positioning in a large-scale physical space, and in particular relates to a reference point recognition system applied to video capture infrared reference points for target calibration. Background technique [0002] Spatial positioning of moving objects in large-scale physical space video projection is the key technology of entertainment and optical tracking systems in virtual reality scenes, in which positioning accuracy and positioning speed are the key to realize spatial positioning of moving objects in large-scale physical space video projection The key technical indicators are directly related to the success or failure of the entire technology, and are also the bottleneck of the spatial positioning technology of moving objects in the current large-scale physical space video projection. Large-scale physical space video projection with high positioning accuracy and high positioning speed The ...
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IPC IPC(8): G06T7/246G06T7/73
CPCG06T2207/10016G06T2207/10048
Inventor 种衍文黄瑞佳潘少明王泽文
Owner WUHAN UNIV