Video entity recognition in compressed digital video streams
First Claim
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1. A method of detecting a video entity in a video stream having a plurality of video frames, the method comprising:
- storing a plurality of known fingerprints, wherein each of the known fingerprints includes a calculated feature corresponding to at least one frame of known video content;
receiving the video stream;
defining a plurality of regions of interest in the video frames of the received video stream;
determining a fingerprint of at least one of the video frames based on the defined regions of interest;
comparing the determined fingerprint to the plurality of known fingerprints; and
determining, based on the comparing, that the received video stream contains the video entity.
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Abstract
A method and system for detection of video segments in compressed digital video streams is presented. The compressed digital video stream is examine to determine synchronization points, and the compressed video signal is analyzed following detection of the synchronization points to create video fingerprints that are subsequently compared against a library of stored fingerprints.
144 Citations
20 Claims
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1. A method of detecting a video entity in a video stream having a plurality of video frames, the method comprising:
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storing a plurality of known fingerprints, wherein each of the known fingerprints includes a calculated feature corresponding to at least one frame of known video content; receiving the video stream; defining a plurality of regions of interest in the video frames of the received video stream; determining a fingerprint of at least one of the video frames based on the defined regions of interest; comparing the determined fingerprint to the plurality of known fingerprints; and determining, based on the comparing, that the received video stream contains the video entity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A video entity detection system for detecting a video entity in a video stream having a plurality of video frames, said system comprising:
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a memory for storing a plurality of known fingerprints wherein each of the known fingerprints includes a calculated feature corresponding to at least one frame of known video content; a receiving module configured to receive the video stream; a fingerprinting module configured to define a plurality of regions of interests in the video frames of the received video stream and to determine a fingerprint of at least one of the video frames based on the defined regions of interest; and a comparison module configured to compare the determined fingerprints to the plurality of known fingerprints and to determine that the received video stream contains the video entity based on the comparing. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification