Estimation of Human Body Height Using Consumer-Level UAVs

Consumer-level UAVs are often employed for surveillance, especially in urban areas. Within this context, human recognition via estimation of biometric traits, like body height, is pivotal relevance. Previous studies confirmed that the pinhole model could be used purpose, but only if accurate distance between aerial camera and target known. Unfortunately, low positional accuracy drones difficulties retrieving coordinates a moving may prevent reaching required level accuracy. This paper proposes novel solution overcome issue. It foresees calculating relative altitude drone from by knowing ground two points visible image. can then to calculate target-to-camera without using or target. The procedure was verified with real data collected quadcopter, first considering controlled environment wooden pole known height person more realistic scenario. verification high reached, even regular market drones.