Visual Inspection for Circular Objects Based on Global Symmetry

被引：2

作者：

Feng, Quandong ^{[1
]}

Zhang, Xin ^{[2
]}

机构：

[1] Beijing Forestry Univ, Coll Sci, Beijing 100086, Peoples R China

[2] Tianjin Polytechn Univ, Sch Elect Engn & Automat, Tianjin 300387, Peoples R China

来源：

CONFERENCE ON MODELING, IDENTIFICATION AND CONTROL | 2012年 / 3卷

基金：

中国国家自然科学基金;

关键词：

visual inspection; global symmetry; circular objects; finding circles; Fourier-Mellin transform; HOUGH TRANSFORM;

D O I：

10.1016/j.aasri.2012.11.088

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The research is aimed to accomplish an automatic visual inspection system for circular objects using cameras and image processing technique. The main concern of the paper is on the pattern analysis of circular objects based on image analysis. First, the authors propose a computational method using global symmetry to locate objects before the further inspection process. It aims at designing a symmetry measure based on distance weight, phase weight and intensity weight. Such measure can be used to locate centers of circles, even for those with weak contrast under uncertain complex backgrounds. Then based on the measure, similarities of arbitrary circular objects are given and tested. The experimental results for the proposed approach are promising. (C) 2012 The Authors. Published by Elsevier Ltd. Selection and/or peer review under responsibility of American Applied Science Research Institute

引用

页码：559 / 565

页数：7

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