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| 激光扫描中平面拟合及坐标转换模型构建 | |
| 引用本文： | 王力,李广云,张启福,李鑫.激光扫描中平面拟合及坐标转换模型构建[J].测绘科学技术学报,2012(2):101-104,108. |
| 作者姓名： | 王力 李广云 张启福 李鑫 |
| 作者单位： | 1. 信息工程大学测绘学院,河南郑州450052 2. 河南理工大学矿山空间信息技术国家测绘地理信息局重点实验室,河南焦作454000 3. 部队,甘肃酒泉735018 |
| 基金项目： | 河南理工大学矿山空间信息技术国家测绘地理信息局重点实验室开放基金资助项目(KLM201109) |
| 摘 要： | 坐标转换是测绘领域经常遇到的问题,如局部坐标系和全局坐标系间的转换、多传感器融合时各传感器间坐标系的相互转换等等.采用平面代替传统坐标转换中的公共点,建立了基于平面的坐标转换模型.首先给出平面的标准定义;然后提出一种基于稳健的 RANSAC算法的特征值的平面拟合方法用于从点云数据中提取公共平面;构建基于平面表示的坐标转换模型并推导转换参数的计算方法;最后,通过模拟数据与实测数据验证模型的正确性. |
| 关 键 词： | 坐标转换 平面拟合 四元数 稳健估计 多站拼接 |
Plane Fitting and Transformation in Laser Scanning |
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| WANG Li,LI Guangyun,ZHANG Qifu,LI Xin.Plane Fitting and Transformation in Laser Scanning[J].Journal of Zhengzhou Institute of Surveying and Mapping,2012(2):101-104,108. | |
| Authors: | WANG Li LI Guangyun ZHANG Qifu LI Xin |
| Institution: | 1,2(1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China; 2.Henan Polytechnic University’s Key Laboratory of Mine Spatial Information Technologies of National Adminisration of Surveying,Mapping & Geoinformation,Jiaozuo 454000,China; 3.95972 Troops,Jiuquan 735018,China) |
| Abstract: | Coordinate transformation is often encountered in surveying and mapping,such as the conversion between local system and global system,conversion among sensors and so on.Common points used for coordinate transformation in traditional ways were replaced by a series of planes,and a coordinate transformation model was built based on planes.Here,a normal definition of plane was given,and a robust fitting method for plane was put forward.Plane-based coordinate transformation model was constructed and the calculation method of parameters was deduced.At last a group of simulated data was used to prove that this model is in a correct way. |
| Keywords: | coordinate transformation plane fitting quaternion robust estmation multiple registration |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |