EP 1046300 A1 20001025 - IMPROVED PREDICTION OF DC OR AC COEFFICIENTS
Title (en)
IMPROVED PREDICTION OF DC OR AC COEFFICIENTS
Title (de)
VERBESSERTE PRÄDIKTION DER DC-bzw. AC-KOEFFIZIENTEN
Title (fr)
PREDICTION AMELIOREE DES COEFFICIENTS DC OU AC
Publication
Application
Priority
- DE 9903230 W 19991007
- DE 19846866 A 19981012
Abstract (en)
[origin: DE19846866A1] The invention relates to method and device for reducing the volume of data, especially for image coding (300) and decoding (400) according to the MPEG 4 standard, in a chronological series of data that is to be coded and decoded, whereby said data is divided up into partial data (10, 20), especially image blocks, during coding. Prediction values (250) are produced by means of a quasi-division. Said prediction values (250) are formed from the sum of a first (230) and second approximation (240).
IPC 1-7
IPC 8 full level
G06T 9/00 (2006.01); H03M 7/30 (2006.01); H03M 7/36 (2006.01); H04N 19/60 (2014.01)
CPC (source: EP)
H04N 19/60 (2014.11); H04N 19/61 (2014.11); H04N 19/63 (2014.11)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
DE 19846866 A1 20000504; EP 1046300 A1 20001025; JP 2002528004 A 20020827; WO 0022827 A2 20000420; WO 0022827 A3 20000720
DOCDB simple family (application)
DE 19846866 A 19981012; DE 9903230 W 19991007; EP 99959188 A 19991007; JP 2000576622 A 19991007