天津科技大学学报2025，Vol.40Issue(6)：76-80,5.DOI:10.13364/j.issn.1672-6510.20240060
一种基于高斯拟合法的改进型光斑质心定位方法
An Improved Spot Centroid Positioning Method Based on Gaussian Fitting Method
刘成硕 1黄喆 1张岚清 1李春炎1
作者信息
- 1. 天津科技大学电子信息与自动化学院,天津 300457
- 折叠
摘要
Abstract
In order to improve the accuracy of positioning the centroid of the spot,an improved method based on Gaussian fitting method is proposed in this article.Firstly,the region of interest(ROI)was obtained by threshold segmentation to in-crease the contrast,then the grayscale map was equalized to improve the resolution of the laser spot image,and finally the Gaussian fitting method was used to process the grayscale image,followed by Blob analysis to segment the foreground from background of the image,enabling noise reduction and laser spot extraction.By comparing the traditional spot centroid pos-itioning methods and analyzing the advantages and disadvantages of different algorithms,the experimental results show that the standard deviation of the improved method is less than 0.35 pixels,and the peak-to-peak is less than 1.8 pixels,and the stability is significantly better than that of the traditional spot centroid positioning methods.关键词
光斑质心定位/噪声处理/高斯拟合法Key words
spot centroid positioning/noise handling/Gaussian fitting method分类
信息技术与安全科学引用本文复制引用
刘成硕,黄喆,张岚清,李春炎..一种基于高斯拟合法的改进型光斑质心定位方法[J].天津科技大学学报,2025,40(6):76-80,5.
