Jumping snakes and parametric model for lip segmentation
作者： N. Eveno , A. Caplier , P.-Y. Coulon
DOI: 10.1109/ICIP.2003.1246818
关键词:
摘要: Lip segmentation is an essential stage in many multimedia systems such as videoconferencing, lip reading, or low bit rate coding communication systems. In this paper, we propose accurate and robust algorithm. First, the upper mouth boundary several characteristic points are detected by using a new kind of active contour : "jumping snake". Unlike classic snakes, it can be initialized far from final edge adjustment its parameters easy intuitive. second step, parametric model composed cubic curves fitted on lips. This flexible enough to reproduce specificities very different shapes. Compared existing models, brings significant accuracy realism improvement.
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