EP 1031238 A1 20000830 - APPARATUS AND METHOD FOR COMPRESSING VIDEO INFORMATION
Title (en)
APPARATUS AND METHOD FOR COMPRESSING VIDEO INFORMATION
Title (de)
VORRICHTUNG UND VERFAHREN ZUR KOMPRIMIERUNG VON VIDEODATEN
Title (fr)
SYSTEME ET PROCEDE POUR COMPRIMER DES DONNEES VIDEO
Publication
Application
Priority
- US 9824189 W 19981113
- US 6663897 P 19971114
Abstract (en)
[origin: WO9926418A1] A method and apparatus is disclosed for efficiently encoding data representing a video image, thereby reducing the amount of data that must be transferred to a decoder. The method includes transforming data sets utilizing a tensor product wavelet transform (32) which is capable of transmitting remainders from one subband to another. Collections of subbands, in macro-block form (36) are weighted (42), detected (46) and ranked (52) enabling prioritization of the transformed data. A motion compensation technique (56, 60) is performed on the subband data producing motion vectors (58) and prediction errors (68) which are positionally encoded into bit stream packets for transmittal to the decoder. Subband macro-blocks and subband blocks which are equal to zero are identified as such in the bit stream packets to further reduce the amount of data that must be transferred to the decoder.
IPC 1-7
IPC 8 full level
G06T 9/00 (2006.01); H04N 7/26 (2006.01); H04N 7/30 (2006.01); H04N 7/32 (2006.01); H04N 19/146 (2014.01); H04N 19/48 (2014.01); H04N 19/63 (2014.01)
CPC (source: EP KR)
H04N 19/146 (2014.11 - KR); H04N 19/48 (2014.11 - EP KR); H04N 19/51 (2014.11 - EP); H04N 19/61 (2014.11 - EP); H04N 19/619 (2014.11 - EP); H04N 19/63 (2014.11 - EP KR); H04N 19/645 (2014.11 - EP); H04N 19/90 (2014.11 - EP); H04N 19/115 (2014.11 - EP); H04N 19/146 (2014.11 - EP)
Designated contracting state (EPC)
BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9926418 A1 19990527; AU 1457799 A 19990607; AU 752219 B2 20020912; CA 2310602 A1 19990527; CA 2310602 C 20090519; CN 1190084 C 20050216; CN 1281618 A 20010124; EP 1031238 A1 20000830; EP 1031238 A4 20030507; JP 2001523928 A 20011127; JP 2008289132 A 20081127; JP 4675477 B2 20110420; KR 100614522 B1 20060822; KR 20010032113 A 20010416
DOCDB simple family (application)
US 9824189 W 19981113; AU 1457799 A 19981113; CA 2310602 A 19981113; CN 98811966 A 19981113; EP 98958556 A 19981113; JP 2000521650 A 19981113; JP 2008096670 A 20080403; KR 20007005298 A 20000515