• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2010, Vol. 32 ›› Issue (7): 140-142.doi: 10.3969/j.issn.1007130X.2010.

• 论文 • 上一篇    下一篇

嵌入式机器视觉实时定位与测量的方法

杨文浩,白瑞林,尚佳良   

  1. (江南大学智能控制研究所,江苏 无锡 214122)
  • 收稿日期:2008-11-06 修回日期:2009-02-20 出版日期:2010-06-25 发布日期:2010-06-25
  • 通讯作者: 杨文浩 E-mail:yangwenhao1984@sina.com
  • 作者简介:杨文浩(1984),男,江苏连水人,硕士生,研究方向为嵌入式系统与图像处理;白瑞林,教授,研究方向为智能控制与嵌入式系统;尚佳良,硕士生,研究方向为嵌入式系统。
  • 基金资助:

    “嵌入式机器视觉控制器的研究与开发”项目(合同号:07398)资助

The Method of RealTime Positioning andMeasurement in Embedded MachineVision Systems

YANG Wenhao,BAI Ruilin,SHANG Jialiang   

  1. (Institute of Intelligent Control,Jiangnan University,Wuxi 214122,China)
  • Received:2008-11-06 Revised:2009-02-20 Online:2010-06-25 Published:2010-06-25
  • Contact: YANG Wenhao E-mail:yangwenhao1984@sina.com

摘要:

本文提出了一种嵌入式机器视觉实时定位与测量相结合的测控方法。根据视觉测控系统中的定位与测量问题,利用点集、Hough变换和最小二乘等方法,解决了图像处理理论算法运算量大、工业检测实时性与准确性低等问题。测试结果表明,该方法检测工件的准确性高(基于公差),检测时间≤2.0ms/次。

关键词: 机器视觉, 嵌入式系统, 定位, 测量

Abstract:

A detection and control methold based on the combination of the positioning and measurement in the realtime embedded machine vision systems is presented. To solve the problem that the industrial detection is of lower accuracy and can not be completed in a realtime way by embedded machine vision systems due to large computation cost, a detection method is proposed based on the point set, the Hough transformation and the leastsquare fitting algorithm. The industrial detection experimental results show the workpiece detection accuracy based on the method is better,the tolerance is higher, and the detection time is lower than 2.0ms/time.

Key words: machine vision;embedded systems;position;measure