Title:
【発明の名称】画像の動きフィールドをセグメント化する方法および画像エンコード方法
Document Type and Number:
Japanese Patent JP3051161
Kind Code:
B2
Abstract:
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.
Inventors:
Michelle Lumba, Michelle
Application Number:
JP50940890A
Publication Date:
June 12, 2000
Filing Date:
June 22, 1990
Export Citation:
Assignee:
Thomson, Consumme, Electronics
International Classes:
G06T7/00; G06T7/20; H04N5/14; H04N7/32; H04N7/26; (IPC1-7): G06T7/20; G06T7/00; H04N7/32
Domestic Patent References:
| JP3198488A | ||||
| JP350154A | ||||
| JP113882A |
Attorney, Agent or Firm:
Kazuo Sato (3 others)