This paper presented a location method for the human eye pupil with single camera, which was divided into three stages,face region detection,eye region detection and pupil center location. In the face region detection stage, combining the method of regional growth,it separated the face region by the space character of face's skin color and lip color under different chromaticity. In the eye region detection stage, using the face region positioned, according to prior knowledge, it narrowed the search area, and then searched the eye area with the genetic algorithm. Finally, it positioned pupil center by the geometrical properties of round. Simulation results indicate this algorithm is effective in complex background and circumstances of head de-flection.%提出了一种单目摄像头下定位人眼瞳孔的方法,分为人脸区域检测、人眼区域检测、瞳孔中心定位三个阶段.在人脸区域检测阶段,利用人脸的肤色和唇色在不同色度空间下的特性,结合区域增长的方法分割出人脸区域;在人眼区域检测阶段,利用定位出的人脸区域,根据先验知识缩小搜索区域,再结合遗传算法搜索眼部区域;最后利用圆的几何性质定位瞳孔中心.实验结果证明了本算法在复杂背景和头部偏转情况下的有效性.
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