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针对可见光相机校正靶标不适用于热红外相机的问题,研究了红外辐射理论与热红外相机探测原理,提出发射率和太阳辐射吸收率两个靶标选材依据参数,对多种材料进行热红外成像试验,得到适合制作热红外靶标的黑色氧化铝板和镀镍铝板两类材料。所选材料制作的靶标材质轻便,热红外成像边界清晰、DN值差异明显,满足校正程序对靶标交点提取准确性的要求。研究成果为热红外面阵相机镜头畸变校正的靶标制作提供重要参考,对面阵热红外航空遥感成像技术起到一定的推进作用。
Aiming at the problem that visible camera correction targets are not suitable for thermal infrared camera, the theory of infrared radiation and the detection principle of thermal infrared camera are studied. The emissivity and solar radiation absorption rate are selected based on the parameters of the two targets. The thermal infrared imaging test , Get suitable for making thermal infrared target black aluminum plate and nickel-plated aluminum two types of materials. The target material made by the selected material is light, the boundary of the thermal infrared imaging is clear, and the difference of the DN value is obvious, which meets the requirements of the calibration procedure for the extraction accuracy of the target intersection point. The research results provide an important reference for the target fabrication of thermal infrared camera lens distortion correction, and play a certain role in promoting the frontal thermal infrared remote sensing imaging technology.