Face Orientation Normalization Using Eye Positions

作     者：Audrius Bukis Rimvydas Simutis 

作者机构：Department of Process Control Kaunas University of Technology Kaunas LT-5136 Lithuania 

出 版 物：《Computer Technology and Application》 (计算机技术与应用（英文版）)

年 卷 期：2013年第4卷第10期

页      面：513-521页

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

主　　题：Face recognition support vector machine orientation normalization and facial features 

摘      要：Despite the fact that progress in face recognition algorithms over the last decades has been made, changing lighting conditions and different face orientation still remain as a challenging problem. A standard face recognition system identifies the person by comparing the input picture against pictures of all faces in a database and finding the best match. Usually face matching is carried out in two steps： during the first step detection of a face is done by finding exact position of it in a complex background （various lightning condition）, and in the second step face identification is performed using gathered databases. In reality detected faces can appear in different position and they can be rotated, so these disturbances reduce quality of the recognition algorithms dramatically. In this paper to increase the identification accuracy we propose original geometric normalization of the face, based on extracted facial feature position such as eyes. For the eyes localization lbllowing methods has been used： color based method, mean eye template and SVM （Support Vector Machine） technique. Experimental investigation has shown that the best results for eye center detection can be achieved using SVM technique. The recognition rate increases statistically by 28% using face orientation normalization based on the eyes position.