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电子学报  2013 

基于视觉感知和边缘保持的光照不变人脸识别

DOI: 10.3969/j.issn.0372-2112.2013.08.008, PP. 1500-1505

Keywords: 人脸识别,光照不变人脸图像,视觉感知,各向异性扩散,边缘保持

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Abstract:

提出一种具有视觉感知特性和边缘保持特性的光照不变人脸识别方法.方法在各向异性扩散算法基础上引入视觉感知机制,提出具有视觉感知特性的图像梯度替代传统的图像空间梯度,使算法更符合人类视觉系统特性;同时,考虑到传统各向异性扩散算法采用的传递系数受参数影响较大,易产生明显的边缘锐化现象,提出一种新的传递系数,该系数不受参数影响,能够始终保持良好的边缘保持特性.新方法所获的光照不变人脸图像保持了良好的边缘,并极大程度上消除了光晕和白斑现象.在EYaleB和CMUPIE人脸图像库上的实验验证了该方法的有效性.

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