基于特征点的三维人脸网格简化  

Three-dimensional facial mesh simplification based on feature points

作　　者：黎文彦[1] 耿国华[1] 周明全[1] 

机构地区：[1]西北大学信息科学与技术学院,西安710127

出　　处：《计算机应用研究》2008年第7期1992-1994,1997,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(F020503)

摘　　要：在边折叠的网格简化算法的基础上,针对特定三维网格模型—人脸,提出了一种实用的基于特征点的快速模型简化算法。该算法把人脸按特征点的分布进行分块处理,对不同区域采用不同的阈值进行调节。对于需要高细节的区域保留高度细节,而对于其他区域则进行简化。使用这种方法可以较大地减少虚拟整型手术中的数据量,同时又能保持待手术区域的高度细节。该算法实现简单、运算速度快,而且能有效保持人脸模型的重要特征。This paper presented a useful quick mesh simplification algorithm based on edge collapse for the special three-dimensional mesh model human face. According to the distribution of feature points, this algorithm dealt with the face which segmented into several areas. It adjusted different areas through giving different values. Kept the details where requsted,while other areas were simplified in an large extent. When this method was applied ,the data would be reduced and remained the high details of preparative operation in the virtual face lifting. This algorithm can keep the characteristics of the model also implement easily and execute on high speed.

关 键 词：网格简化 递进网格 特征点 边折叠 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]