YE Feng, YE Xue-yi, LUO Xiao-han, et al. Face recognition algorithm based on class specific dictionary learning for local kernel collaborative representation-based classification[J]. 2019, (4): 18-21.
YE Feng, YE Xue-yi, LUO Xiao-han, et al. Face recognition algorithm based on class specific dictionary learning for local kernel collaborative representation-based classification[J]. 2019, (4): 18-21. DOI: 10.13873/J.1000-9787(2019)04-0018-04.
类特定字典学习-局部核协同表示分类的人脸识别法
摘要
针对人脸识别中的光照变化和遮挡等固有难题
提出一种核函数和分块相结合的人脸识别方法。对人脸图像分块
利用高斯核映射各子块到更高维空间;结合类特定字典学习得到各子块对应的局部核协同表示的每类重构误差;根据重构误差的倒数以投票完成从人脸局部到全局的识别。在Extend Yale B
AR
CMU PIE人脸库上的实验表明:提出的方法不仅具有较高的识别正确率
同时对光照变化以及遮挡的人脸图像具有较强的鲁棒性。
Abstract
Aiming at inherent problems of Illumination changes and occlusion in face recognition
a face recognition method combined with kernel function and blocking is proposed. Face images are divided into block images
each sub-block is mapped to a higher dimension space by Gaussian kernel. Each sub-block is combined with class specific dictionary learning to get the corresponding reconstruction error of each class based on local kernel collaborative representation. According to the reciprocal of the reconstruction error
the process from local discrimination to global recognition is completed by voting. Experimental results on Extend Yale B
AR and CMU PIE face database show that the proposed method not only has high recognition accuracy
but also has strong robustness to illumination changes and occluded face images.