“…In recent years, UAVs have played an increasingly important role in many fields due to their high flexibility, low cost, and easy operation, which are often used for battlefield reconnaissance, battle situation assessment, target recognition, and tracking in the military. Now, image sensors in UAVS can acquire multiple types of images such as multispectral images, visible images, and infrared images [1]. However, due to the limitation of environmental conditions such as light, imaging with only one sensor will be affected by certain factors and cannot meet the requirements of practical applications.…”