宓 翔,邱飞岳.基于CCD的瞳孔自动识别方法的设计与实现[J].轻工机械,2012,30(1): |
基于CCD的瞳孔自动识别方法的设计与实现 |
Design and Implementation of Pupil Automatic Recognition Based on CCD |
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DOI: |
中文关键词: 计算机视觉 瞳孔识别 中心点定位 帧图片 |
英文关键词:computer vision pupil recognition center positioning picture frame |
基金项目: |
宓 翔 邱飞岳 |
浙江工业大学 信息工程学院, 浙江 杭州 310014 |
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中文摘要: |
研究了从视频流中识别人眼瞳孔并定位瞳孔中心点的问题。基于CCD人眼图像采集平台,图像预处理采用高斯算子进行低通滤波,去除采集过程中的尖锐点。利用Hough算法对瞳孔进行粗定位,利用椭圆拟合的方法,根据瞳孔的平面几何特征,最终达到定位瞳孔的中心点。经过大量的帧图片验证,其系统能够以较高的准确性和较快的速度在帧图片中识别瞳孔边界及定位瞳孔中心。 |
英文摘要: |
The problem of recognizing the pupil from the video stream and positioning the center of pupil was studied. On the platform of eye images collection based on CCD,Gauss operator is used with the image preprocessing as low pass filter to remove the sharp points. As Hough algorithm is used for rough positioning of pupil, ellipse fitting method is used to position the center of pupil. By testing of a large number of photographs, it shows that the system can recognize the pupil and position the center with high accuracy and fast speed in the video stream. |
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