| 摘要 |
PCT No. PCT/FR90/00461 Sec. 371 Date Feb. 26, 1991 Sec. 102(e) Date Feb. 26, 1991 PCT Filed Jun. 22, 1990 PCT Pub. No. WO91/00577 PCT Pub. Date Jan. 10, 1991.A method of segmenting the field of motion of an image, particularly a video image, including forming a blockwise field of motion from motion vectors allocated to image pixels, processing the blockwise field of vectors in order to extract from this field a set of dominant vectors of motion, by elimination of the vectors close to the dominant vectors, so as to retain only representatives of widened classes of motion. Then a vector of the reduced set of dominant vectors is reassigned to each block, and the resulting field, after time filtering, is used for the encoding of the image by "quad-tree" encoding. This disclosed method applies in particular, to the setting-up of the coding-auxiliary digital data to the limit of 1 Mbt/s. |
