Invention Grant
- Patent Title: Full-length video fingerprinting
- Patent Title (中): 全长视频指纹识别
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Application No.: US12536907Application Date: 2009-08-06
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Publication No.: US08229219B1Publication Date: 2012-07-24
- Inventor: Sergey Ioffe
- Applicant: Sergey Ioffe
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Fenwick & West LLP
- Main IPC: G06K9/00
- IPC: G06K9/00

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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