segmentation method of movable electronic images in relation to the movement of the image blocks having a contour recognition method.

摘要

The field of the invention is that of the analysis and of the coding sequences of images. / p & & p & the objective is to provide such a process which determines the speed of displacement of the contour, in an image, and in particular the contours of displacement in translation, intended to be inserted in an image segmentation method enabling a compression of the image signal without degradation psycho-visual sensitivty of the reconstructed image. / p & & p & this objective is achieved in particular with the aid of an image segmentation method into blocks with vector - speed of displacement, characterized in that it comprises a process 13 of the detection of a contour in each of said image blocks, and in that said speed vector - 17 which is assigned to a block having a single contour predominant is the vector - speed of displacement of said outline. Advantageously, the velocity vector representing is chosen from among a set of n vectors previously selected 15 as being the most representative of the current image. / p & & p & a preferred application is to be found in the compression of hdtv image for transmission through canal mac.