一种基于线基元的单张影像与点云配准方法  

A registration method of single image and point clouds based on line primitive

作　　者：王建 姚吉利[1] 赵雪莹 赵猛 杨承昆 李彩林[1] WANG Jian;YAO Jili;ZHAO Xueying;ZHAO Meng;YANG Chengkun;LI Cailin(School of Civil and Architecture Engineering,Shandong University of Technology,Zibo,Shandong 255049,China)

机构地区：[1]山东理工大学建筑工程学院,山东淄博255049

出　　处：《测绘科学》2020年第2期73-78,共6页Science of Surveying and Mapping

基　　金：国家自然科学青年基金项目(41701525,41601496);山东省重点研发计划项目(2018GGX106002).

摘　　要：针对单张影像无同名点对且相机主要参数未知时,单张影像与点云数据的配准难度较大问题,该文提出一种基于线基元进行单张影像与点云配准的方法。该方法在相机未检校的前提下,以经典直线线性变换(DLT)模型为基础,通过用主轴分类表达线基元推导出扩展DLT模型。实验表明,该文方法可行,有较好的配准效果。Aiming at the problem that the single image doesn’t have corresponding points,and the camera parameters are unknown,as a result,the registration of single image and point clouds is more difficult,a registration method of single image and point clouds based on line was proposed in this paper.The method was applied to the uncalibrated camera,the extended direct linear transformation(DLT)model was deduced based on the classical DLT model,and the lines were expressed accurately by main axis in 3 forms.Experimental results showed that the method was feasible and had good registration effect.

关 键 词：线基元 扩展DLT模型 单张影像 几何配准 

分 类 号：P232[天文地球—摄影测量与遥感]