Method for assessing the horizontal speed of a drone, particularly of a drone capable of hovering on automatic pilot

摘要

The method involves updating multiresolution representation of pyramid image type models of scene at different successively-decreasing resolutions. The texturing parameter representative of level of microcontrasts is obtained in picked-up scene. An approximation of the horizontal translation speed of drone (10) is obtained. A battery of predetermined criteria is applied to texturing parameter and to speed approximation. The optical-flow algorithm is switched to algorithm of corner detector type so as to estimate differential movement of scene from one image to next.