21 September 1994 Model-based image coding using deformable 3D model for face-to-face communications
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Abstract
The model-based image coding might be the potential method for very/ultra low bit rate visual communications. However, some problems still remain for video practice, such as a finer wireframe 3-D model, precise rule for facial expressions analyzing, and automatic feature points extraction for real time application, etc. This paper proposes a feasible scheme of model-based image coding based on a deformable model which would be suitable for very/ultra low bit rates transmission. Meanwhile, some key techniques, such as automatic face feature point extraction based on a priori knowledge for real time applications and the method of AUs separation of a face on various expressions, is given.
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Defu Cai, Defu Cai, Huiying Liang, Huiying Liang, Xiangwen Wang, Xiangwen Wang, } "Model-based image coding using deformable 3D model for face-to-face communications", Proc. SPIE 2298, Applications of Digital Image Processing XVII, (21 September 1994); doi: 10.1117/12.186592; https://doi.org/10.1117/12.186592
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