基于三维激光成像系统的相机标定方法

三维激光成像系统中点云数据与影像数据的融合可以对被扫描物体赋予真彩色.为了获得点云数据与影像数据良好的融合效果,就需要精确的确定载体坐标系与相机坐标系之间的关系.本文针对三维激光成像系统点云模型真彩色处理方法进行研究,提出了一种基于三维激光成像系统的相机标定方法.通过对相机坐标系的标定,建立点云数据与影像数据之间的数学模型.实验结果显示,采用所提出的方法,能够使得三维立体点云数据与影像数据精确融合.最终得到被扫描目标的真彩色3D模型.

A Camera Calibration Method Based on the 3D Laser Imaging System

The pointcloud data obtained by the 3D laser imaging systems and the image data obtained by the camera can be fused. In order to obtain a good result, we have to accurately get the relationship between the carrier coordinates and the camera coordinates. For the method of true color processing of pointcloud data in 3D laser imaging system, this paper present a camera calibration method, which calculates the translation matrix and rotation matrix between the carrier coordinates and the camera coordinates. The experiment shows that the proposed method accurately fuses the pointcloud data and the image data. Finally, we get the 3D matrix with nature color of sanned object.