Global Patent Index - EP 0797895 A1

EP 0797895 A1 19971001 - METHOD OF ENCODING VIDEO IMAGES

Title (en)

METHOD OF ENCODING VIDEO IMAGES

Title (de)

VERFAHREN ZUR KODIERUNG VON VIDEOBILDERN

Title (fr)

PROCEDE POUR CODER DES IMAGES VIDEO

Publication

EP 0797895 A1 19971001 (EN)

Application

EP 96932760 A 19961017

Priority

  • EP 96932760 A 19961017
  • EP 95202819 A 19951018
  • IB 9601099 W 19961017

Abstract (en)

[origin: WO9715146A1] A method of encoding video images is disclosed, in which different coding methods are applied to different regions of the image. The image is divided into blocks, and the coding method which is optimal in a rate-distortion sense is selected (2) for each block. In an embodiment, transform coding (3), such as DCT or LOT, is applied to all blocks. The block size is selected in accordance with a rate-distortion criterion.

IPC 1-7

H04N 7/26

IPC 8 full level

G06T 9/00 (2006.01); H04N 7/26 (2006.01); H04N 7/30 (2006.01)

CPC (source: EP)

H04N 19/119 (2014.11); H04N 19/12 (2014.11); H04N 19/126 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/19 (2014.11); H04N 19/124 (2014.11); H04N 19/30 (2014.11); H04N 19/60 (2014.11)

Citation (search report)

See references of WO 9715146A1

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

WO 9715146 A1 19970424; EP 0797895 A1 19971001; JP H10511532 A 19981104

DOCDB simple family (application)

IB 9601099 W 19961017; EP 96932760 A 19961017; JP 51566097 A 19961017