Full-length video fingerprinting
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United States of America Patent
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Jul 24, 2012
Grant Date -
N/A
app pub date -
Aug 6, 2009
filing date -
Aug 6, 2009
priority date (Note) -
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Abstract
A full-length fingerprint is generated for a video that represents characteristics of the entire duration of the video in a small amount of data. A plurality of subfingerprints for the video, each subfingerprint encoding features of a corresponding segment of the video, is accessed. A plurality of subhistograms is generated for the video, each subhistogram encoding a frequency of subfingerprint features for subfingerprints included in a subset of the plurality of accessed subfingerprints. A master histogram for the video is generated that encodes a frequency of subhistogram features for the plurality of generated subhistograms for the video. A hashing procedure is applied to the master histogram to produce the full-length fingerprint. Clustering can be performed on full-length video fingerprints for videos in a database to detect near-duplicate videos.
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