摘要
利用灰度投影对人脸图像进行检测和眼睛定位是一种常用方法,但是直接采用该算法进行眼睛定位,容易将鼻子或嘴的水平位置误判为眼睛水平位置,从而导致检测准确率降低。在计算图像水平方向灰度投影时,加入像素点的位置方差特征,可以准确地找出眼睛的水平位置,从而精确地定位眼睛坐标。算法在FERET人脸数据库上测试,准确率达92.4%。
It is a common method to use gray-level projection to detect face image and eye location.But if use this method alone,the nose or mouth horizontal position may be got as the eye horizontal position,which will reduce the accuracy rate of eye location.When the eye horizontal position is calculated,a new variance feature is added.And in this method the eye horizontal position more correctly can be got.The improved algorithm is tested on the FERET face image database,and the accuracy reach 92.4%.
出处
《科学技术与工程》
2011年第16期3845-3847,共3页
Science Technology and Engineering
关键词
灰度投影
人眼定位
人脸识别
gray-level projection eye location face recongnition
