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为了研究农作物冠层的热红外辐射的方向变化特性，一台装备８０°视场角广角 镜头的宽波段红外热像仪被安置在小型飞机上，沿不同的航线获取同一地区的热红外 多角度图像，传感器以不同的观测角瞄准地面同一目标、因而可以获得同一地表目标 热红外辐射的多角度信息．介绍了机载多角度热红外遥感图像的处理原理、方法及处理 结果，并分析了几种典型农作物在不同生长季节热红外辐射方向性的变化规律。
In order to study the directional change of thermal infrared radiation in the crop canopy, a wideband thermal imaging camera equipped with an 80 ° field of view wide-angle lens was placed on a small aircraft to obtain thermal infrared multi-angle images of the same area along different routes , The sensor is aimed at the same target on the ground with different observation angles, so multi-angle information of thermal infrared radiation of the same surface target can be obtained. The principle, method and results of airborne multi-angle thermal infrared remote sensing image processing are introduced. The variation of thermal infrared radiation direction of several typical crops in different growing seasons is analyzed.