现代电子技术2012，Vol.35Issue(12)：84-86,3.
基于SIFT算法的PCB板基准点匹配
PCB board reference point match base on SIFT algorithm
摘要
Abstract
In the SMT industry, when electronic components are placed by SMT machine automatically on PCB boards and the PCB boards are clamped to the fixture by man, the coordinate of the PCB board may produce a certain offset and rotation error, which may affect the placement accuracy of the components due to fixture accuracy and man-made factors. The general solution to eliminate the errors is feature extraction of the reference point, but it has a great limitation. The Mark matching method base on SIFT algorithm is proposed. This method changes the image characteristics into scale space features and can do matching correction for only one Mark point. It can eliminat translational errors and rotation errors on the circuit board plane. The experiments prove its accuracy can meet the accuracy requirements of sub-pixel which is less than 0.6 pixel.关键词
SIFT算法/基准点/匹配/平移误差Key words
SIFT algorithm/ reference point/ match/ translational error分类
信息技术与安全科学引用本文复制引用
潘长开,田学军,叶峰..基于SIFT算法的PCB板基准点匹配[J].现代电子技术,2012,35(12):84-86,3.基金项目
国家863计划资助项目(2009AA04Z111) （2009AA04Z111）
广东省教育部产学研结合基金资助项目(2010B090400531) （2010B090400531）
广东省工业攻关基金资助项目( 2009B010900017) （ 2009B010900017）
