Region-based approach to robust lip contour extraction
Alan Wee‐Chung Liew, S.H. Leung, W.H. Lau · Electronics Letters · 2000
A lip contour extraction algorithm based on a deformable geometric model is proposed. The algorithm employs a stochastic cost function to find an optimum partition of an image into lip and non-lip regions such that the joint probability of the two regions is maximised. Experiments show that robust lip contour extraction from colour lip images is possible.