基于棋盘角点的三维标定

3D Calibration Based on Corners of 2D Chessboard

三维标定是多Kinect三维重构中的一项重要研究内容。根据多Kinect三维重构的特点,提出了一个简单而有效的多Kinect的标定方法,替代标定RGB相机的相对位置的传统方法。该方法首先计算出一个Kinect上的RGB相机和深度相机之间的映射函数。利用映射函数,从标准标定棋盘估算提取的角点的三维坐标,从而能够直接建立两个Kinect的三维对应关系。

3D calibration is an important part of multi-Kinect 3D reconstruction. According to the characteristics of multi-Kinect 3D reconstruction,a simple and effective multi-Kinect calibration method is proposed to replace the traditional method of calibrating the relative position of RGB camera. The method first calculates the mapping function between the RGB camera and the depth camera on a Kinect. Using the mapping function,the 3D coordinates of the extracted corner points are estimated from a standard calibration checkerboard so that the 3D correspondence between the two Kinect can be established directly.