一个视频驱动的人脸动画原型系统，详细介绍了构造该系统所涉及的人脸检测、特征提取、特征跟踪、特定人脸建模、表情动画等方面的技术。-A video-driven facial animation prototype system, detailing the structure of the system involved in face detection, feature extraction, feature tracking, specific face modeling, facial animation, such as technical.