亚像素检测方法在图像检测点提取中的应用  

Sub-pixel detection on extracting image detection point

作　　者：芦宁[1] 朱睽[1] 喻擎苍[1] 冯精武[2] 

机构地区：[1]浙江理工大学信息电子学院,浙江杭州310018 [2]浙江理工大学机械与自动控制学院,浙江杭州310018

出　　处：《机电工程》2011年第3期350-353,共4页Journal of Mechanical & Electrical Engineering

摘　　要：图像检测点的提取是图像定位于检测系统中的关键问题。为解决利用二值细化提取图像检测点技术精度不足等问题,将亚像素检测定位技术应用到图像检测点提取中。通过试验比较了三种亚像素定位算法图像定位中的优缺点,进行了通过光条中心线的提取试验以及通过两条光条中心线交叉点提取图像检测点的试验,对亚像素检测定位技术作出评价。研究结果表明,将亚像素检测技术运用到提取结构光图像检测点中,所达到的精度要高于利用二值细化方法提取图像检测点的提取精度。Extracting image detection point is critical in image location and detection system.In order to solve the problems of the lower accuracy of binarization on extracting image detection point,sub-pixel location was used to extract image detection point.The advantages and disadvantages of three methods of sub-pixel location were proved according experiments.The sub-pixel location was evaluated on the experiments of stripe center line extracting and cross point of stripe center line extracted image detection point.The experiment results show that sub-pixel location is more accurate than the binarization on extracting image detection point.

关 键 词：检测点 亚像素 二值化 

分 类 号：TP242.6[自动化与计算机技术—检测技术与自动化装置]