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Unmanned Aerial Vehicle Based Tree Canopy Characteristics Measurement For Precision Spray Applications, Md Sultan Mahmud, Long He, Paul Heinemann, Daeun Choi, Heping Zhu
Unmanned Aerial Vehicle Based Tree Canopy Characteristics Measurement For Precision Spray Applications, Md Sultan Mahmud, Long He, Paul Heinemann, Daeun Choi, Heping Zhu
Agricultural and Environmental Sciences Faculty Research
The critical components for applying the correct amount of agrochemicals are fruit tree characteristics such as canopy height, canopy volume, and canopy coverage. An unmanned aerial vehicle (UAV)-based tree canopy characteristics measurement system was developed using image processing approaches. The UAV captured images using a high-resolution red-green-blue (RGB) camera. A digital surface model (DSM) and a digital terrain model (DTM) were generated from the captured images. A tree canopy height map was generated from the subtraction of DSM and DTM. A total of 24 apple trees were randomly targeted to measure the canopy characteristics. Region of interest (ROI) was generated …