[1]胡涛,郭宝平,郭轩.基于游程分析轮廓提取算法的改进[J].深圳大学学报理工版,2009,26(4):405-410.
 HU Tao,GUO Bao-ping,and GUO Xuan.An improved run-based boundary extraction algorithm[J].Journal of Shenzhen University Science and Engineering,2009,26(4):405-410.
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基于游程分析轮廓提取算法的改进()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第26卷
期数:
2009年4期
页码:
405-410
栏目:
光电与信息工程
出版日期:
2009-10-31

文章信息/Info

Title:
An improved run-based boundary extraction algorithm
文章编号:
1000-2618(2009)04-0405-06
作者:
胡涛12郭宝平2郭轩12
1)华中科技大学光电子科学与工程学院,武汉 430074;
2)深圳大学光电子学研究所,深圳 518060
Author(s):
HU Tao12GUO Bao-ping2and GUO Xuan12
1)College of Optoelectronics Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,P.R.China
2)Institute of Optoelectronics,Shenzhen University,Shenzhen 518060,P.R.China
关键词:
图像处理模式识别轮廓提取游程编码游程平均压缩率
Keywords:
image processingpattern recognitionboundary extractionrun-length encodingrun average compression ratio
分类号:
TP 391; TP 751
文献标志码:
A
摘要:
指出Capson游程分析轮廓提取算法存在的两点不足:一是所提取轮廓在水平方向凹形部分存在偏差;二是未考虑合并情况会导致提取复杂图案轮廓时出现部分轮廓丢失现象.通过增加分叉点和交汇点以及建立两种未考虑合并情况对应的规则,分别对这两点不足进行改进.实验表明,改进后的算法能精确提取任意复杂图案的全部内外轮廓,在提取高游程平均压缩率图像轮廓时耗时较少.该算法能实现流水线式并行轮廓提取,减少线阵扫描相机应用中等待数据获取的时间,提高在线检测速度,且成功应用于高精度PCB线路板缺陷检测系统,实现高分辨PCB图像轮廓快速准确提取.
Abstract:
Two drawbacks of Capson’s boundary extraction algorithm were investigated.The first is that distortion occurs at the concave portion of boundaries.The second is that the algorithm could fail to extract all boundaries of images with complex patterns due to the lack of consideration in two merging cases.The drawbacks were overcome respectively by introducing splitting points and merging points and by building the rules to the two merging cases.Experimental results show that the improved algorithm can extract all boundaries exactly for images with varieties of complex patterns and reduce the computation cost for the images with high run average compression ratio.Moreover,the pipeline parallel processing can be utilized to decrease the waiting time for acquiring image data in application of line-scanning camera,and was successfully applied in PCB defect inspection system to implement rapid and exact boundary extraction for high resolution PCB images.

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备注/Memo

备注/Memo:
收稿日期:2009-01-07;修回日期:2009-06-10
基金项目:国家高技术研究发展计划资助项目(2008AA8041205)
作者简介:胡涛(1979-),男(汉),湖北省英山县人,华中科技大学与深圳大学联合培养博士研究生.E-mail:happy.hut@163.com
通讯作者:郭宝平(1958-),男(汉),深圳大学研究员、博士生导师.E-mail:bpguo@szu.edu.cn
更新日期/Last Update: 2009-11-09