**7. Infrared thermography design**

The infrared thermography was created using the UAV's characteristics, such as cruising altitude, turning radius, and cruise speed. The major goal is to get the best detection quality while minimizing flight and picture processing time. The flight parameters of the UAV, such as altitude, image overlap, and flight speed, must be considered to determine the optimum sensor parameters, such as sensor resolution, exposure time, image acquisition rate, focal length, and camera angle, in order to find an adequate compromise between quality and efficiency (determining the field-ofview). All of these factors influence image metrics such as ground resolution and the number of photos required per region. Following the coverage area calculations, the optimum detector size at 60 m was determined to be 614 by 512, with a focal length of 9 mm and pixel size of 11.7 μm, yielding a horizontal field of view (HFOV) of 45*:*20, a vertical field of view (VFOV) of 36*:*80, and a diagonal field of view (DFOV) of 51.80. Thus, the horizontal width was determined to be 175.87 m and the vertical width to be 23.98 m, To achieve this, a thermography with at least 12 Megapixels was discovered to be necessary, and the FLIR Vue Pro R640 camera was proven to be sufficient for visualizing the pest (**Figure 10**).
