Stadium marker line-based method and system for determining camera exterior parameters
A technology for marking lines and stadiums, applied in image data processing, image analysis, instruments, etc., to achieve the effect of improving accuracy
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[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0054] In order to facilitate those skilled in the art to better understand the present invention, the method for calculating the camera calibration parameters will be briefly described below by taking the insertion of a 3D animation in a TV broadcast of a sports game as an example.
[0055] In order to insert a 3D animation at a predetermined position in the TV screen, it is necessary to know the corresponding relationship between the spatial position of the object and the imaging position of the object on the TV image, that is, it is necessary to establish the 3D world coordinates of the spatial point and its projection on the image The mapping relationship between the two-dimensional pixel coordinates of points.
[0056] This m...
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