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一种基于局部描述符的三维人脸识别方法

, PP. 45-53

Keywords: 三维人脸识别,局部描述符,点对应

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Abstract:

提出一种局部描述符进行三维人脸识别。每个采样点的局部特征定义为该点根据其法向量与3个主轴之间的角度自适应选取的邻域点集向人脸主轴平面投影所得的面积。文中提出的三维人脸识别算法首先对人脸进行预处理,归一化到较统一的姿态后,提取与鼻尖等距的轮廓线,并对轮廓线进行重采样以剔除无用点。然后对每个采样点提取局部特征。最后建立人脸之间的点对应关系,将加权融合后的局部特征用于识别。通过实验认证,文中方法识别效果较好,且对遮挡和噪声有较好的鲁棒性。

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