一种人脸图像光照补偿的新方法

光照的变化容易引起人脸识别率急剧下降,针对这一难题,提出一种新的光照补偿的方法.首先通过构造原人脸图的二值图,确定出原图所属的光源方向.在除正面光源外的每个光源方向上构造出通用的平均亮度差值来进行光照补偿.结合去掉三个特征值最大的PCA特征向量的方法进行识别.实验表明,这种方法能够显著提高光照变化条件下的人脸识别率,特别是对于光照条件大范围变化的情况,也可以得到比较高的正确识别率.

Novel Illumination Compensation Method for Face Images

Face recognition rates drop sharply under various illuminations.In this paper,A novel approach of illumination compensation is proposed to handle this problem.First,a binary image is constructed from the original face image,and it can be used to determine the direction of light.And then,the original image is compensated with one average intensity difference which corresponds to the same direction of light.Finally,the face recognition is done without first three eigenfaces.Experimental results show that this...