发明授权
- 专利标题: Digital video fingerprinting based on resultant weighted gradient orientation computation
- 专利标题(中): 基于加权梯度取向计算的数字视频指纹识别
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申请号: US12491896申请日: 2009-06-25
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公开(公告)号: US08385644B2公开(公告)日: 2013-02-26
- 发明人: Mihailo M. Stojancic
- 申请人: Mihailo M. Stojancic
- 申请人地址: US CA Mountain View
- 专利权人: Zeitera, LLC
- 当前专利权人: Zeitera, LLC
- 当前专利权人地址: US CA Mountain View
- 代理机构: Law Offices of Peter H. Priest, PLLC
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
Video sequence processing with various filtering rules is applied to extract dominant spatial features and generate unique set of signatures describing video content. Accurate active regions are determined for each video sequence frame. Subsequently, a video sequence is structured by tracking statistical changes in the content of a succession of video frames, and suitable frames are selected for further spatial processing. Selected video frames are processed for feature extraction and description, and compact representative signatures are generated, resulting in an efficient video database formation and search.
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