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Automatic Extraction Of The Lips Shape Via Statistical Lips Modelling and Chromatic Feature

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2 Author(s)
Moran, L.E.L. ; Centro de Investigacion y Desarrollo Tecnologico, Cuernavaca ; Pinto, R.E.

In this work we assume a frontal view of a face for the lips shape extraction, then the first step is locate a face inside a digital image, for this task we use techniques based in color to extract only the pixels with skin tone, a templates based in integral projections are applied to verify and locate the face, using chromatic feature of the lips and integral projections, we locate and define a region of interest for lips. Previously a statistical model of lips (ASM) was created, in this model we try to capture a variation of a closed lips to an opened lips. For the search task the gradient vector flow (GVF) is used. The initial contour can even start far and across from the boundaries and will converge to boundary concavities. When ASM converge, the lips shape is extracted and recognized.

Published in:

Electronics, Robotics and Automotive Mechanics Conference, 2007. CERMA 2007

Date of Conference:

25-28 Sept. 2007