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New color transformation for lips segmentation

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3 Author(s)
Eveno, N. ; Lab. des Images et Signaux, Inst. Nat. Polytechnique de Grenoble, France ; Caplier, A. ; Coulon, P.Y.

A robust pre-processing algorithm for lip segmentation is presented. We define a new transformation based on RGB color space: the chromatic curve map. It aims at increasing discrimination between lips and skin. It allows robust lips detection under non uniform lighting conditions and without any particular make-up. The motivation of the present work is to extract visual information for automatic speech recognition, videoconferencing and speaker's face synthesis under natural lighting conditions

Published in:

Multimedia Signal Processing, 2001 IEEE Fourth Workshop on

Date of Conference: