EP 2153438 B1 20111026 - POST-PROCESSING FOR REDUCING QUANTIFICATION NOISE OF AN ENCODER DURING DECODING
Title (en)
POST-PROCESSING FOR REDUCING QUANTIFICATION NOISE OF AN ENCODER DURING DECODING
Title (de)
NACHBEARBEITUNG ZUR REDUZIERUNG DES QUANTIFIZIERUNGSRAUSCHENS EINES CODIERERS WÄHREND DER DECODIERUNG
Title (fr)
POST-TRAITEMENT DE REDUCTION DU BRUIT DE QUANTIFICATION D'UN CODEUR, AU DECODAGE
Publication
Application
Priority
- FR 2008051057 W 20080613
- FR 0704242 A 20070614
Abstract (en)
[origin: WO2009004225A1] The invention relates to the processing of a signal that is compression encoded (COD) according to a predetermined encoding type applying a quantification operation (Q) and then decoded (DEC) so that the quantification noise is present in the decoded signal (S*). The signal processing of the invention comprises applying a quantification noise reduction (TBQ) to the decoded signal (S), preferably in the following manner: first obtaining information (INF) on the type of compression encoding, selecting a model for the reduction of the quantification noise adapted to said information by estimating the quantification noise (BQ) that the encoding may have generated; and applying to the decoded signal (S*) a processing for reducing the quantification noise (FIL) according to the selected model.
IPC 8 full level
G10L 19/26 (2013.01); G10L 21/02 (2013.01); G10L 21/0208 (2013.01)
CPC (source: EP US)
G10L 19/26 (2013.01 - EP US); G10L 21/0364 (2013.01 - EP US); G10L 21/0208 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009004225 A1 20090108; AT E531038 T1 20111115; EP 2153438 A1 20100217; EP 2153438 B1 20111026; ES 2376178 T3 20120309; JP 2010529511 A 20100826; JP 2015007805 A 20150115; JP 5881791 B2 20160309; US 2010183067 A1 20100722; US 8175145 B2 20120508
DOCDB simple family (application)
FR 2008051057 W 20080613; AT 08805992 T 20080613; EP 08805992 A 20080613; ES 08805992 T 20080613; JP 2010511708 A 20080613; JP 2014180564 A 20140904; US 66354608 A 20080613