发明名称 |
Method and system for real time judging boundary lines on tennis court |
摘要 |
There is provided a method and a system for registration of real time position of tennis ball relatively to boundary lines on tennis court. The method and system comprise sensitive to near-infrared radiation at least one video camera, outputting video image of court and the method and system further include at least one point source of near-infrared radiation, illuminating tennis court and displaced relatively to the video camera. It is suggested a simple and inexpensive way of determining if a tennis ball bounces in or out of court by determining point of intersection of trajectories of the tennis ball and its shade from near-infrared radiation and comparing the position of the determined point of intersection with previously calibrated boundary lines of court.
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申请公布号 |
US8199199(B1) |
申请公布日期 |
2012.06.12 |
申请号 |
US20070839530 |
申请日期 |
2007.08.15 |
申请人 |
SHLYAK YURIY;KOMAROV VLADIMIR |
发明人 |
SHLYAK YURIY;KOMAROV VLADIMIR |
分类号 |
H04N7/18 |
主分类号 |
H04N7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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