Optimal automatic capture of facial movements and expressions in video sequences
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United States of America Patent
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Sep 8, 2015
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N/A
app pub date -
Mar 12, 2013
filing date -
May 22, 2012
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Abstract
Computerized methods for creating tracks of locations across frames of a video corresponding to a facial feature of a human. A set of feature location hypotheses is generated, as applied to images derived from the sequence of frames representing images of the human. Each hypothesis is refined, and a first set of confidence measures is associated with each hypothesis. A second set of confidence measures is associated with interframe transition, and a cost function that is a combination of hypotheses and transition confidence measures is minimized. A set of tracks is generated, characterizing each of a plurality of facial features within each frame of the sequence of frames. Performance analysis data may further be derived in a performance driven animation production pipeline, based on the generated tracks.
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