基于模板匹配的目标点三维坐标值测量

作者：王 飞，乌日图，张晓晖，田正冲 日期：2007-07-06/span> 浏览：3503 查看PDF文档

基于模板匹配的目标点三维坐标值测量
王 飞，乌日图，张晓晖，田正冲
(内蒙古工业大学 机械学院,内蒙古 呼和浩特 010051)

摘 要：针对机械手抓取的目标物其空间位置难以确定的现状，提出了在采集到的图像中利用模板匹配找到目标物，测定其中心点的坐标，并将其坐标值代入摄像头的成像模型中,进而算出该点的三维坐标值的方法。该方法具有精度高、适用性强的特点。实验结果表明，用该方法确定目标物位置，能够使机械手抓取达到所需的精度要求。
关键词：模板匹配；坐标测量；成像模型；摄像机标定

Threedimensional coordinate measuring of target based on template matching
WANG Fei, WU Ritu, ZHANG Xiaohui, TIAN Zhengchong
(College of Mechanical Engineering, Inner Mongolia University of Technology, Huhhot 010051, China)

Abstract: In view of the target manipulatorsnatching difficult to determine their spatial position, the method was proposed. Using the template matching to find the object in the collected image, and find the center coordinates, then put coordinate values of the image into the imaging model and calculate the threedimensional coordinates of the point. This kind of method has high accuracy, applicability characteristics. The experimental results show that using this kind of method to determine the location of the target can meet the manipulatorsnatching accuracy requirements.
Key words: template matching; coordinate measuring; imaging model; camera calibration

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