中文摘要：

针对红外热像仪标定精确低的问题,设计一种能准确标定红外热像仪的方法。首先,使用两台可见光摄像机及一台红外热像仪组成三目系统,标定出可见光摄像机参数,并在系统视野内挥动带有特制灯泡的标定杆,获取匹配点对;然后通过可见光摄像机组成的双目系统重构点的三维坐标,建立起红外热像仪图像点与三维坐标点的对应关系;最后标定出红外热像仪参数并进行优化。实验结果表明,该方法精度较高,满足应用需求。

英文摘要：

To overcome low accuracy problem in infrared thermal imager calibration, in this paper we design a method which can accurately calibrate the imager. First, we use two visible cameras and an infrared thermal imager to make up a trinocular vision system to calibrate the parameters of the visible cameras. Then we obtain the matching point pairs by waving the calibration pole with a special bulb in the system view. Next, we reconstruct 3D coordinates of points with binocular vision system composed of visible cameras, and set up the corresponding relationship between 3D coordinates points and the image points of infrared thermal imager. At last, we calibrate the parameters of infrared thermal imager and optimise them. Experiment results show that the proposed calibration method can satisfy the requirements of applications with higher accuracy.