基于脸部结构知识的三维人脸建模  

3D Human Face Modeling Based on Facial Shape Knowledge

作　　者：龚勋[1,2] 王国胤[1,2] 

机构地区：[1]西南交通大学信息科学与技术学院,成都610031 [2]重庆邮电大学计算机科学与技术研究所,重庆400065

出　　处：《系统仿真学报》2009年第14期4356-4361,共6页Journal of System Simulation

基　　金：新世纪优秀人才支持计划(NCET);重庆市计算机网络与通信重点实验室开放基金;重庆庆市自然科学基金(CSTC2007BB2445)

摘　　要：将Sibson坐标用于局部特征分析,提出了一个新的局部形变模型。该模型具有较强的局部性,可以精细地刻画人脸个性特征,且能够根据人脸形状的先验信息进行整体控制。然后,在局部形变的基础上采用双重形变,实现了两种互补的形变算法在特征级的融合,进一步提高了建模精度。实验结果表明,本算法具有较小的重建误差和较快的处理速度,能够生成光滑、逼真的三维人脸模型。A novel local deformation model was proposed by applying Sibson coordinate to local features analysis. It could elaborately depict personality traits on human faces benefiting from its good localization features, and provided overall modifications using prior assumptions regarding facial characteristics. Based on the local deformation, a double deformations model was developed to obtain more accurate face shapes by combining, in the manner of feature fusion, the strengths of two complementary deformation algorithms. Simulation results show that the proposed method outperforms the conventional routines with respect to the modeling precise and could process quickly as well, and that the 3D faces generated by the system are both smoothing and photo-realistic.

关 键 词：三维人脸建模 形变模型 Direchlet自由形变 局部特征分析 径向基函数 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]