计量学报2011，Vol.32Issue(3)：217-220,4.DOI:10.3969/j.issn.1000-1158.2011.03.06
PCB导线上下线宽检测算法研究
Study on Algorithms of PCB Conductor Top and Bottom Line Widths Measurement
摘要
Abstract
In order to measure the top and bottom conductor line widths, a fast and accurate edge extraction method is proposed.Common methods of image denoising often lead to blurred edges, especially for heavy-noise contaminated microscopic images.Firstly, P-M model is used to remove noise.This technique can preserves or even enhance prominent edges when removing noise.Canny operator is used to detect the edge in the denoised image.At last, Hough transform is used to detect lines.Experimental results show that the proposed method has strong antinoise capabihty.The accuracy of line widths measurement is improved.It can bo applied to practical engineering measurement system.关键词
计量学/上下线宽检测/P-M模型/Canny算子/Hough变换Key words
Metrology/ Top and bottom line widths measurement/ P-M model/ Canny operator/ Hough transformation分类
通用工业技术引用本文复制引用
黄永林,叶玉堂,陈镇龙,乔闹生..PCB导线上下线宽检测算法研究[J].计量学报,2011,32(3):217-220,4.基金项目
广东省东莞正业电子产学研项目(0710,0705-1,0705-2) （0710,0705-1,0705-2）
广东省粤港招标项目(20091683) （20091683）
