Thales

Baptiste Perrin

Thierry Ganille

Johanna Lux

Daniel Maulet

The general field of the invention is that of the methods for graphically representing a first image from an image sensor of the outside landscape superimposed on a second image representing a synthetic image of the same outside landscape, the two images being displayed on a display screen of an onboard display system for aircraft. The first image comprises three rectangular zones of increasing transparency, each zone having a width equal to that of the first image and a determined height, the sum of the three heights being equal to the height of the first image, the first zone situated at the bottom of the image having a first constant level of transparency, the third zone situated at the top of the image having a second constant level of transparency greater than the first level of transparency, the second zone situated between the first zone and the third zone having a level of transparency that is continuously variable between the first level and the second level.

Method for graphically representing an image from an image sensor superimposed on a synthetic second image of the outside landscape

An on-board viewing system for aircraft of an image arising from an image sensor overlaid on a synthetic image of the outside landscape is provided. The method comprises the following steps: analysis, at a temporal frequency, of the sensed images so as to determine, in each image, a boundary between the information useful for piloting and the non-useful information, the useful information consisting of noteworthy elements, the temporal frequency being an order of magnitude lower than the video refresh frequency; determination of a transition zone in the vicinity of each boundary; display on the viewing screen, at the video refresh frequency, of the sensed images, each sensed image being displayed overlaid on a synthetic image of the landscape, the sensed image being opaque under the transition zone, totally transparent above the transition zone and of continuously variable transparency in the transition zone.

Method for overlaying an image arising from a sensor on a synthetic image by automatic detection of the limit of visibility and associated viewing system

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Merignac, France

Baptiste Perrin