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Digital video content fingerprinting based on scale invariant interest region detection with an array of anisotropic filters
Digital video content fingerprinting based on scale invariant interest region detection with an array of anisotropic filters
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机译:基于尺度不变兴趣区检测和各向异性滤波器的数字视频内容指纹识别
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摘要
Video sequence processing is described with various filtering rules applied to extract dominant features for content based video sequence identification. Active regions are determined in video frames of a video sequence. Video frames are selected in response to temporal statistical characteristics of the determined active regions. A two pass analysis is used to detect a set of initial interest points and interest regions in the selected video frames to reduce the effective area of images that are refined by complex filters that provide accurate region characterizations resistant to image distortion for identification of the video frames in the video sequence. Extracted features and descriptors are robust with respect to image scaling, aspect ratio change, rotation, camera viewpoint change, illumination and contrast change, video compression/decompression artifacts and noise. Compact, representative signatures are generated for video sequences to provide effective query video matching and retrieval in a large video database.
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