Independent Gabor Analysis of Illumination Insensitive Isophote-angle for Face Recognition
A new independent Gabor analysis of the isophote angle is proposed for face recognition. The isophote is the curve of constant intensity in image, which represents the geometric object contour. Isophote angles are proved to be insensitive to the illumination; therefore, they are adopted in our method for recognition under low-level lighting conditions. Then, a bank of Gabor filters is built to exact Gabor representations of the isophote angles. Last, the higher-order statistical relationships among variables are extracted for classifier, where the cosine distance function computed in gradient domain achieves the best performance. The experimental results demonstrate that our method outperform the conventional methods under varying illumination and other outliers (pose, expression, distance, etc.), especially in the large scale face databases.
illumination insensitive isophote angle,gradientface face recognition
Gaoyun An Jiying Wu Qiuqi Ruan
Institute of Information Science, Beijing Jiaotong University, Beijing 100044, China Beijing Key Lab China Certification & Inspection (Group) Co., LTD
国际会议
北京
英文
253-256
2011-11-27（万方平台首次上网日期，不代表论文的发表时间）