摘要
在已经实现的一个MPEG-4兼容的人脸动画系统的基础上,设计并实现了一个MPEG-4兼容的语音动画系统。MEPG-4是国际上第一个人脸动画标准,本文首先介绍了该标准的定义和我们实现的与MPEG-4标准兼容的人脸语音动画的系统结构,并在此基础上,详细介绍了该系统实现过程中的关键技术,包括人脸动画、中文可视音素的定义、可视音素过渡、表情过渡、可视音素与表情混合、语音与动画同步等。我们的语音动画系统具有计算方法简单,系统通信开销小的特点,在普通微机上就能够产生带有表情的高质量的语音动画。
Based on the MPEG-4 compliant facial animation system we developed, an MPEG-4 compliant speech animation system was designed and implemented. The MPEG-4 is the first international standard at facial animation. In this paper, we give the definition of the standard and the structure of our MPEG-4 compliant speech animation system and then, describe in detail the key techniques in implementation, including facial animation, the definition of Chinese viseme, viseme transmission, expression transmission, viseme and expression blending, and speech-animation synchronization. Because the computing method is simple and the communication cost is small, the system can produce high-quality speech animation with expression in an ordinary microcomputer
出处
《系统仿真学报》
CAS
CSCD
2002年第7期925-927,944,共4页
Journal of System Simulation
基金
中国科学技术大学青年科学基金资助
