METHOD FOR OVERLAYING AN IMAGE FROM A SENSOR ON A SYNTHETIC IMAGE BY AUTOMATICALLY DETECTING THE VISIBILITY LIMIT AND VISUALISION SYSTEM THEREOF

摘要

The general field of the invention is that of graphical representation methods in an aircraft visualization system of an image (EVS) derived from an image superimposition on a synthetic image (SVS) of the external landscape. . The method according to the invention comprises the following steps: - Analysis, at a temporal frequency, of the captured images so as to determine, in each image, a boundary (F) between the information useful for piloting and the useless information, useful information consisting of remarkable elements, said time frequency being an order of magnitude lower than the video refresh rate; - Determination of a transition zone (T) in the vicinity of each boundary; - Display on the display screen at the video refresh rate of the captured images, each captured image being displayed superimposed on a synthetic image of the landscape, the captured image being opaque under the transition zone, completely transparent to- above the transition zone and continuously variable transparency in the transition zone.