光电工程, 2013, 40 (11): 89, 网络出版: 2013-12-04   

Shearlet多方向特征融合与加权直方图的人脸识别算法

Face Recognition Based on Shearlet Multi-orientation Features Fusion and Weighted Histogram
作者单位
轻工过程先进控制教育部重点实验室 (江南大学 ), 江苏 无锡 214122
摘要
针对 Shearlet变换在提取特征数据时存在冗余性以及无法对全局特征进行稀疏表征的缺点, 提出了一种 Shearlet多方向特征融合与加权直方图的人脸识别算法。首先, 对原始图像采用 Shearlet变换得到多尺度多方向的人脸特征, 然后按照两种编码方式将同一尺度下不同方向的特征进行编码融合, 并将融合后的尺度图像划分为若干大小相等的不重叠矩形块, 利用 Shannon熵理论对各子模式进行加权融合。在 ORL、FERET和 YALE人脸库中做了多组实验, 充分证明该算法相对于传统 Shearlet滤波器在分类识别上更具有优势。
Abstract
The Shearlet multi-orientation features fusion and weighted histogram are proposed to overcome the disadvantage of Shearlet transform, which has data redundance in extracting features and cannot sparsely represent the global characters. First, Shearlet transform is used to extract the multi-orientation facial features. Then two coding methods are proposed to fuse the features from different directions of the same scale into a single feature, and the fused image is divided into a number of equal-sized nonoverlapping rectangular blocks, weighted fusion of each model using the Shannon entropy theory. Many experiments have been done on the ORL, FERET and YALE face database, which fully proved that this method has more advantages in terms of recognition than the traditional Shearlet.

周霞, 张鸿杰, 王宪. Shearlet多方向特征融合与加权直方图的人脸识别算法[J]. 光电工程, 2013, 40(11): 89. ZHOU Xia, ZHANG Hongjie, WANG Xian. Face Recognition Based on Shearlet Multi-orientation Features Fusion and Weighted Histogram[J]. Opto-Electronic Engineering, 2013, 40(11): 89.

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