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Extraction of Lip Contour from Face


Author : Riti Kushwaha, Neeta Nain and Promila Jangra

Pages : 265-269
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Abstract

 

Lip segmentation is an essential stage in many multimedia systems such as video-conferencing, lip reading, or low bit rate coding communication systems. It is also useful in various image / video acquisition devices encouraged the development of many computer vision applications, such as vision-based surveillance, vision based man machine interfaces, vision-based biometrics, and so on. Hence extraction of lip becomes a broad field. This paper presents an algorithm for extraction of lip contour. We have used two algorithms for this. Our first algorithm is a color based algorithm derived from a quadratic polynomial, with the assumption that color of lips should lie in the range of blue. The accuracy of the first proposed algorithm is 91% in case of normal skin people, and 95% in case of fairer skin color people. Our second algorithm is model a based algorithm which gives accuracy up to 96%.

Keyword: Lip contour detection, Lip segmentation, Lip extraction from face.

 

Article published in International Journal of Current  Engineering  and Technology, Vol.2,No.2 (June 2012)

 

 

 

 

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