In order to compare the characteristics and performance of aerial imaging system and variable-speed injection system, the developed RGB digital camera, remote control radio and flying helicopter in near-infrared band can shoot high-angle images with real-time contrast, which are suitable for epidemic monitoring, evaluation and monitoring in corn planting areas. The near-infrared high-angle imaging camera can record the reflection values of 800nm near-infrared band and 650nm infrared band, so that corn can be accurately graded.
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