A method for measuring the contrast of outdoor targets on a drone platform

Aiming at the problem of multi-directional and multi-angle measurement in the process of target-background contrast testing, based on the research and analysis of the imaging principle and photosensitive characteristic curve of optical cameras, a method for outdoor target contrast measurement based on the unmanned aerial vehicle (UAV) platform is proposed, and a complete measurement process is formed. Contrast measurement with an optical camera can take advantages of the clear and intuitive nature of digital images and their ease of processing. By mounting an optical camera on the UAV, the advantages of the UAV’s high maneuverability and convenient adjustment of azimuth and pitch angles can be fully exploited to solve the problem of multi-angle and multi-directional measurement.