基于对称变换的瞳孔定位方法  

Pupil Precise Localization Method Based on Symmetry Transform

作　　者：张勇忠[1] 刘富[2] 孙令明[2] 唐超[2] 

机构地区：[1]长春汽车工业高等专科学校机电工程系,长春130011 [2]吉林大学通信工程学院,长春130022

出　　处：《吉林大学学报（信息科学版）》2009年第3期268-272,共5页Journal of Jilin University（Information Science Edition）

基　　金：吉林省科技发展基金资助项目(SC0701028)

摘　　要：为解决瞳孔检测中眼镜反光、眼帘遮盖、闭眼等问题,提出了一种基于改进对称变换的瞳孔定位方法。根据人脸的梯度信息、人眼瞳孔区域与眼镜反光区域梯度方向不同的现象,改进对称变换算法,以提高定位准确性,采用自评估算法对定位进行评估,并利用自采集的图像和图库中的图像进行了实验。结果表明,改进的对称变换算法能对瞳孔进行精确定位。Based on advanced symmetry transform, a pupil localization method was studied. In order to solve low accuracy problem of localization because of reflection of light bringing of glasses , overspread of eyes and closed eyes, etc, the symmetry transform method was improved based on different gradient information between area of pupil and area of reflecting light of glasses. In order to improve accuracy of localization, a self evaluation method was applied. Experiment results of collected pictures and pictures in library showed that the method can localize the situation of pupil precisely.

关 键 词：对称变换 瞳孔定位 自评估 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]