山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 31-36.doi: 10.6040/j.issn.1672-3961.0.2015.279
刘大琨,谭晓阳
LIU Dakun, TAN Xiaoyang
摘要： 为了将人脸形状向量集的流形结构嵌入到人脸定位模型中,以人脸定位参数模型中典型的约束局部模型为基础展开研究。结合局部坐标编码理论和稀疏约束,将基于流形结构的邻近形状向量集代替点分布模型中的非刚性形变集,实现了流形学习中的局部切空间排列方法与点分布模型的融合,从而得到了一个流形嵌入的约束局部模型。经过在模拟数据、有标注的人脸部件数据库和有标注的人脸数据库的试验验证,与基于线性重建的局部约束模型拟合相比,嵌入流形结构的约束局部模型具有更好的性能。
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