Keyframe selection to represent a video
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United States of America Patent
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-
Mar 23, 2004
Grant Date -
N/A
app pub date -
Sep 5, 2000
filing date -
Sep 5, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A key frame representative of a sequence of frames in a video file is selected by applying face detection to a video to select a key frame which may include people and has particular application to indexing video files located by a search engine web crawler. A key frame, one frame representative of a video file, is extracted from the sequence of frames. The sequence of frames may include multiple scenes or shots, for example, continuous motions relative to a camera separated by transitions, cuts, fades and dissolves. To extract a key frame face detection is performed in each frame and a key frame is selected from the sequence of frames based on a sum of detected faces in the frame.
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