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| 改进的同名直线匹配及三维重建技术 | |
| 引用本文： | 王建敏,刁寅午,娄安颖,李秋芬.改进的同名直线匹配及三维重建技术[J].海洋测绘,2011,31(2):68-71. |
| 作者姓名： | 王建敏 刁寅午 娄安颖 李秋芬 |
| 作者单位： | 1. 辽宁工程技术大学测绘与地理科学学院,辽宁阜新,123000 2. 天津城市建设学院,天津,300384 3. 辽宁省岫岩县城乡规划管理局,辽宁岫岩,114300 |
| 基金项目： | 辽宁省科技厅社会发展攻关项目 |
| 摘 要： | 针对已有三维直线重建算法的不足,提出了基于同名直线和点云数据的三维直线重建算法,该算法先应用单应矩阵与核线双重约束实现直线匹配,再依据共线条件方程的基本原理,经过初步确定高程值、验证与精化高程值、光束与物面交会及精化三维空间直线段等一系列过程,最终实现空间直线的三维重建.该实现过程简单易懂,并能获得较高精度的三维空间直... |
| 关 键 词： | 同名直线 点云数据 光束与物面交会 直线三维重建 |
Improved Matching of Homonymous Line and the Technology of Three-dimensional Reconstruction |
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| WANG Jian-min,DIAO Yin-wu,LOU An-ying,LI Qiu-fen.Improved Matching of Homonymous Line and the Technology of Three-dimensional Reconstruction[J].Hydrographic Surveying and Charting,2011,31(2):68-71. | |
| Authors: | WANG Jian-min DIAO Yin-wu LOU An-ying LI Qiu-fen |
| Institution: | 1.Geomatics School Liaoning Technical University,Fuxin,Liaoning,123000;2.Tianjin Institute of Urban Construction,Tianjin,300384;3.Liaoning Xiuyan Urban and Rural Construction Bureau,Xiuyan,Liaoning,114300) |
| Abstract: | Against the deficiencies of existing algorithmics of reconstruction of three-dimensional line,the algorithmic of reconstructing three-dimensional line based on homonymous line and three-dimensional point cloud data is put forward.In the first place,homonymous line is matched by homography and epipolar-line constraint.Then,according to basic principles of collinearity equations,it initially sets elevation value,then,verifies and refines elevation value,intersects beam and object plane,refines three-dimensional line,in the end,it completes reconstruction of three-dimensional line.The prosess of reconstructing three-dimensional line is uncomplicated and easy to understand,and it obtains three-dimensional straight line which has higher accuracy. |
| Keywords: | homonymous line point cloud data intersecting beam and object plane reconstruction of three-dimensional line |
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