| Flexible Calibration Method for 3D Laser Scanner System简 |
| |
| 引用本文： | 杨中东,王鹏,李晓慧,孙长库.Flexible Calibration Method for 3D Laser Scanner System简[J].天津大学学报(英文版),2014,20(1):27-35. |
| |
| 作者姓名： | 杨中东 王鹏 李晓慧 孙长库 |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China （No. 51105273）. |
| |
| 摘 要： | In this paper, a flexible high-precision calibration method suitable for industrial field was proposed. The complexity of the coordinate transformation was simplified by choosing the camera coordinate system as the unified reference coordinate system. A flexible planar calibration pattern was introduced to the calibration process, which can be arbitrarily placed and from which the known feature points can be extracted to construct other unknown feature points. With the known intrinsic parameters, the laser projector plane equation was fitted by the multi-noncollinear points, which were acquired through the principle of triangulation and the projective invariance of cross ratio. With this method, the strict alignment and multiple times of coordinate transformation can be avoided. Experimental results showed that the arithmetic mean of the root mean square （RMS） error of distance was 0.000 7 mm.
|
| 关 键 词： | 三维激光扫描系统 标定方法 参考坐标系 校准方法 坐标变换 投影平面 算术平均值 工业领域 |
Flexible calibration method for 3D laser scanner system |
| |
| Zhongdong Yang,Peng Wang,Xiaohui Li,Changku Sun.Flexible calibration method for 3D laser scanner system[J].Transactions of Tianjin University,2014,20(1):27-35. |
| |
| Authors: | Zhongdong Yang Peng Wang Xiaohui Li Changku Sun |
| |
| Institution: | 1. State Key Laboratory of Precision Measuring Technology and Instruments, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
|
| |
| Abstract: | In this paper, a flexible high-precision calibration method suitable for industrial field was proposed. The complexity of the coordinate transformation was simplified by choosing the camera coordinate system as the unified reference coordinate system. A flexible planar calibration pattern was introduced to the calibration process, which can be arbitrarily placed and from which the known feature points can be extracted to construct other unknown feature points. With the known intrinsic parameters, the laser projector plane equation was fitted by the multi-noncollinear points, which were acquired through the principle of triangulation and the projective invariance of cross ratio. With this method, the strict alignment and multiple times of coordinate transformation can be avoided. Experimental results showed that the arithmetic mean of the root mean square (RMS) error of distance was 0.000 7 mm. |
| |
| Keywords: | structured light laser scanner flexible planar target cross ratio calibration |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
