Estimation procedure offsets line images obtained by an image sensor scanning space or airborne

摘要

Estimation procedure shifts images of lines of an image, said "composite image" is constituted by the juxtaposition of J line images, in which: - line images represent a scene on the surface (S) of a celestial body, acquired successively by a line of sensitive cells of a sensor (10) located in a vehicle that overfly said celestial body, each consisting line image by a plurality of pixels, - an image line Lj, ​​1 = j = J, has a lateral and / or longitudinal displacement between the position the image line Lj is intended to occupy in the composite image and the position it should occupy for the fact error vision sensor (10) in the during the image acquisition line Lj, ​​said method is characterized in that line images represent different portions of the scene and that lateral displacement and / or lon gitudinal an image line Lj, ​​regarding the image line Li, j different i, is estimated based on a local model of lateral and / or longitudinal of the similarity between images of different line variation.