中国光学（中英文）2025，Vol.18Issue(2)：274-286,13.DOI:10.37188/CO.2024-0184
基于几何估计优化的多线激光三维重建
Multi-line laser 3D reconstruction based on geometric estimation optimization
摘要
Abstract
In traditional multi-line laser 3D reconstruction technology,due to the inevitable noise affecting the multi-line laser lines,the extracted laser center coordinates often contain specific errors.These errors can lead to the inability to obtain high-precision 3D data when using matching points found based on epipolar constraints for 3D reconstruction directly.To address this issue,we propose a method based on geometric es-timation to achieve 3D reconstruction of multi-line lasers.First,by calibrating the quadratic surface equa-tions of the multi-line laser,combined with the binocular epipolar constraint method,the initial matching points of the multi-line laser can be calculated.After finding the correct initial matching points,a geometric distance minimization estimation model can be established using the distance constraint from points to epi-polar lines.This geometric distance refers to the distance from the laser center points in the left and right im-ages to their corresponding epipolar lines.New matching points that better conform to the epipolar con-straints can be recalculated through this geometric distance minimization optimization estimation.Finally,these new matching points can be used to complete the 3D reconstruction of the multi-line laser.Compared to the traditional method based on epipolar constraints,the algorithm proposed in this paper performs better in matching and accuracy.The accuracy of the final 3D reconstruction can reach about 0.02 mm.This method can significantly improve the overall accuracy of binocular multi-line laser reconstruction,thereby obtaining more accurate and reliable 3D data.关键词
多线激光/极线约束/几何估计/多线激光重建Key words
multi-line laser/epipolar constraint/geometric estimation/multiline laser reconstruction分类
计算机与自动化引用本文复制引用
黄会明,刘桂华,邓磊,宋涛,钦付平..基于几何估计优化的多线激光三维重建[J].中国光学（中英文）,2025,18(2):274-286,13.基金项目
装备预先研究共用技术项目(No.50927010302) （No.50927010302）
广东省电网公司广州供电局的项目(No.080044KK 52190002) Supported by Equipment Pre-research Common Technology Project(No.50927010302) （No.080044KK 52190002）
the Projects of Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd(No.080044KK52190002) （No.080044KK52190002）
