中文摘要：

为提高手语合成的真实感和可懂度,分析了手语表达中唇动和表情运动的特点,基于MPEG-4的参数化表达模型,提出了兼容于MPEG-4的口型和表情库构建方法,并基于该库完成了包含手势、唇动和表情的虚拟人手语动画.实验结果表明,包含唇动和表情的合成手语的真实感得到增强,进而说明了口型和表情库的有效性.

英文摘要：

To synthesize realistic and intelligible lip motion and expression for Chinese sign language, based on MPEG-4 parametric model, a kind of method for constructing lip motion and expression database was proposed. When the lip motion and expression database were used to synthesize Chinese sign language animation, compared with the previous synthesized result, the animation including gesture, lip motion and expression was more realistic and intelligible. Experimental results show that the method for constructing lip motion and expression is valid.