发明授权
US09060164B2 Intelligent use of scene and test pattern analyses for traffic camera diagnostics
有权
智能使用场景和测试模式分析用于交通摄像机诊断
- 专利标题: Intelligent use of scene and test pattern analyses for traffic camera diagnostics
- 专利标题(中): 智能使用场景和测试模式分析用于交通摄像机诊断
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申请号: US13610907申请日: 2012-09-12
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公开(公告)号: US09060164B2公开(公告)日: 2015-06-16
- 发明人: Wencheng Wu , Edul N. Dalal
- 申请人: Wencheng Wu , Edul N. Dalal
- 申请人地址: US CT Norwalk
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Norwalk
- 代理机构: Fay Sharpe LLP
- 主分类号: H04N17/00
- IPC分类号: H04N17/00 ; G08G1/04
摘要:
A method for determining a response to misalignment of a camera monitoring a desired area includes acquiring temporal related frames from the camera including a reference frame. A pixel location is determined of a reference object from the frames. Using the pixel location of the reference object, a displacement of the camera between a current frame and the reference frame is determined. For the displacement exceeding a first threshold, a new displacement of the camera is measured by introducing at least one additional object to a camera field of view and comparing the new displacement to a second threshold. For the new displacement not exceeding the second threshold, the camera is recalibrated using a determined pixel location and a physical location of the at least one additional object. For the new displacement exceeding the second threshold, notification is provided of a misalignment to an associated user device.
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