中国计量大学学报2023，Vol.34Issue(4)：541-548,8.DOI:10.3969/j.issn.2096-2835.2023.04.007
点光源非定域干涉同心圆环半径提取算法研究
Research on extraction algorithms of concentric circle radius in non localized interferences of point light source
摘要
Abstract
Aims:This paper aims to solve the problem of accurately extracting the radius of a point light source in non-localied interferometric circular ring images.Methods:A fast morphological center localization algorithm based on Hough transform was proposed.Firstly,the image was read in for preprocessing.Then,the center of the interference concentric ring was extracted using Hough transform.Finally,a morphological center fast localization algorithm was used to obtain the radius values of each ring.The feasibility and accuracy of the algorithm were verified through simulation and experimental image processing.Results:There was a system error of-8.58 μm in the algorithm extraction.After compensating for this error,the recognition error of the simulated ring was below 1 μm.For the experimental images,a vernier caliper was used to measure the image samples.The experimental images were compared with the results obtained by the algorithm.The differences were all below 1 μm.Conclusions:The algorithm can meet the accuracy required for optical interferometry measurement.关键词
干涉条纹/非定域干涉/霍夫变换/图像处理/半径提取Key words
interference fringe/interference of non-localization/Hough transformation/picture processing/radius of extracting分类
信息技术与安全科学引用本文复制引用
欧阳烨锋,李玉彬,朱玲,方振远,薛财文,张宝武..点光源非定域干涉同心圆环半径提取算法研究[J].中国计量大学学报,2023,34(4):541-548,8.基金项目
浙江省自然科学基金项目(No.Y22E053005) （No.Y22E053005）
