基于MPEG-4的三维人脸动画系统

An MPEG-4 Facial Animation System

为了解决基于模型编码的新一代多媒体压缩标准中的MPEG-4人脸动画技术,引入了一个MPEG-4三维人脸动画系统.首先用3D Scanner获取的主体对象的深度信息和纹理信息特定化通用网格模型;然后采用参数模型和肌肉模型相结合的方法控制模型网格点的变化,生成人脸动画;同时引入人脸功能区的划分并定义了人脸动画表.实验表明:此方法可以在FAP(facial animation parameter)流的驱动下生成理想的三维人脸动画.

MPEG-4 facial animation is one of the key technologies in the next generation model based on compress coding. The authors present an entire system for MPEG-4 facial animation, develop a method that begins with cylindrical range and re-flectance data acquired by a Cyberware 3D Scanner and construct an efficient and fully functional model of the subject's head from a generic mesh model. The authors combine parameterized mode with muscle model to manipulate the subject's head model and then synthesize facial expression. Using those methods, the authors get a good result.