Lip features automatic extraction

Lip features automatic extraction

An algorithm for speaker's lip segmentation and features extraction is presented. A color video sequence of speaker's face is acquired, under natural lighting conditions and without any particular make-up. First, a logarithmic color transform is performed from the RGB to HI (hue, intensity...

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Hauptverfasser: Lievin, M., Luthon, F.
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Sprache:eng
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Feature extraction
Markov random fields
Spatiotemporal phenomena
Video sequences
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Luthon, F.
description An algorithm for speaker's lip segmentation and features extraction is presented. A color video sequence of speaker's face is acquired, under natural lighting conditions and without any particular make-up. First, a logarithmic color transform is performed from the RGB to HI (hue, intensity) color space. Second, a statistical approach using Markov random field modeling determines the red hue prevailing region and motion in a spatiotemporal neighborhood. Third, the final label field is used to extract ROI (region of interest) and geometrical features.
doi_str_mv 10.1109/ICIP.1998.727160
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subjects Feature extraction
Markov random fields
Spatiotemporal phenomena
Video sequences
title Lip features automatic extraction
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