基于HALCON的四目摄像机标定技术

Four cameras calibration technology based on HALCON

针对立体视觉中常用的双目摄像机不能覆盖整个目标视野或立体匹配中误差较大而需采用多个摄像机的情况,基于机器视觉软件HALCON提出了一种四目相机的标定方法,对立体视觉标定原理进行了分析。利用HALCON丰富的算子进行了标定实验,实验证明通过刚性转换可以获得任意相机间的位姿关系,并说明了标定方法的正确性与可行性。

This paper focus on the situation that in the stereo vision,two cameras can not cover the whole target field of vision or large error in stereo matching and need to use multiple cameras. Based on the machine vision software HALCON,a calibration method of four cameras is proposed. The principle of stereo vision calibration is analyzed. The calibration experiment is carried out using HALCON ＇s rich operators. The calibration experiment proves that the position and orientation relation between any camera can be obtained by the rigid transfer,shows the correctness and feasibility of the calibration method.