Robust face recognition using gradient map and Hausdorff distance measure
Jing Chi, Duansheng Chen, Xiaojing Lu, Xiaoli Li · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2007
A gradient-based face recognition method using Partial Hausdorff Distance (PHD) measure is proposed in this paper. First, in order to achieve a performance independent of lighting conditions, the image is transformed into a Gradient Map (GM). And then, Hausdorff distance measure is introduced to calculate the dissimilarity between two Gradient Maps. The experimental data show that the measure is suitable for face recognition. As we can see later, this distance measure is robust to lighting variations, slight pose differences and expression changes in face images. At last, recognition accuracy is given tested on AR and FERET databases, and comparisons with Edge Map (EM) and Line segment Edge Map (LEM) approaches are also presented.