Global Patent Index - EP 2526696 A4

EP 2526696 A4 20140604 - METHOD AND DEVICE FOR ENCODING AN IMAGE BLOCK OF AN IMAGE AND CORRESPONDING DECODING METHOD AND DEVICE

Title (en)

METHOD AND DEVICE FOR ENCODING AN IMAGE BLOCK OF AN IMAGE AND CORRESPONDING DECODING METHOD AND DEVICE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR CODIERUNG EINES BILDBLOCKS EINES BILDES SOWIE ZUGEHÖRIGES DECODIERUNGSVERFAHREN UND VORRICHTUNG

Title (fr)

PROCÉDÉ ET DISPOSITIF POUR ENCODER UN BLOC D'IMAGE D'UNE IMAGE ET PROCÉDÉ ET DISPOSITIF DE DÉCODAGE ASSOCIÉ

Publication

EP 2526696 A4 20140604 (EN)

Application

EP 10843635 A 20100122

Priority

CN 2010000102 W 20100122

Abstract (en)

[origin: WO2011088592A1] An incoming bit stream (INBS) is residue decoded (RESD). DC coefficient residue (DCCR) is determined and combined with DC prediction value (DCPV) for regaining DC coefficient (COEF). Prediction value (DCPV) is determined using decision operation (DCPD). This decision operation receives mask information (MINB) of neighbouring blocks retrieved from memory (MEM) and mask information (MCB) of the current block as inputs. Mask information (MCB) of the current block results from comparing mask information code word (MICD) separated from bitstream (INBS) with mask code word table MIT wherein mask information code word (MICD) is separated from bit stream (INBS) and mask decoded (MDEC).

IPC 8 full level

H04N 19/11 (2014.01); H04N 19/12 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/61 (2014.01)

CPC (source: EP)

H04N 19/11 (2014.11); H04N 19/12 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/61 (2014.11)

Citation (search report)

  • [I] EP 1684524 A1 20060726 - SAMSUNG ELECTRONICS CO LTD [KR]
  • [A] US 2007036224 A1 20070215 - SRINIVASAN SRIDHAR [US], et al
  • [A] BING ZENG ET AL: "Directional Discrete Cosine Transformsâ A New Framework for Image Coding", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 18, no. 3, 1 March 2008 (2008-03-01), pages 305 - 313, XP011204025, ISSN: 1051-8215
  • [A] CHUO-LING CHANG ET AL: "Direction-adaptive partitioned block transform for image coding", IMAGE PROCESSING, 2008. ICIP 2008. 15TH IEEE INTERNATIONAL CONFERENCE, IEEE, PISCATAWAY, NJ, USA, 12 October 2008 (2008-10-12), pages 145 - 148, XP031373959, ISBN: 978-1-4244-1765-0, DOI: 10.1109/ICIP.2008.4711712
  • [A] ZHANG YONG-DONG ET AL: "Fast 4x4 intra-prediction mode selection for H.264", 2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO : JUNE 27 - 30, 2004, TAIPEI, TAIWAN, IEEE OPERATIONS CENTER, PISCATAWAY, NJ, vol. 2, 27 June 2004 (2004-06-27), pages 1151 - 1154, XP010771028, ISBN: 978-0-7803-8603-7, DOI: 10.1109/ICME.2004.1394421
  • [XP] ZHIBO CHEN ET AL: "Pattern-based assembled DCT scheme for image coding", VISUAL COMMUNICATIONS AND IMAGE PROCESSING; 11-7-2010 - 14-7-2010; HUANG SHAN, AN HUI, CHINA,, 11 July 2010 (2010-07-11), XP030082199
  • [XP] ZHIBO CHEN ET AL: "Pattern-based Assembled DCT scheme with DC prediction and adaptive mode coding", INTERNATIONAL CONF. ON IMAGE PROCESSING (ICIP 2010), USA, 26 September 2010 (2010-09-26), pages 1253 - 1256, XP031813785, ISBN: 978-1-4244-7992-4
  • See references of WO 2011088592A1

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 MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

WO 2011088592 A1 20110728; EP 2526696 A1 20121128; EP 2526696 A4 20140604

DOCDB simple family (application)

CN 2010000102 W 20100122; EP 10843635 A 20100122