Global Patent Index - EP 3977744 A4

EP 3977744 A4 20220727 - METHOD AND APPARATUS FOR LOSSLESS STILL PICTURE AND VIDEO CODING

Title (en)

METHOD AND APPARATUS FOR LOSSLESS STILL PICTURE AND VIDEO CODING

Title (de)

VERFAHREN UND VORRICHTUNG ZUR VERLUSTFREIEN STANDBILD- UND VIDEOCODIERUNG

Title (fr)

PROCÉDÉ ET APPAREIL POUR UN CODAGE SANS PERTE DE VIDÉO ET D'IMAGE FIXE

Publication

EP 3977744 A4 20220727 (EN)

Application

EP 20832816 A 20200625

Priority

  • RU 2019000468 W 20190628
  • RU 2020050135 W 20200625

Abstract (en)

[origin: WO2020263132A1] A method for still picture and/or video coding comprising, determining if lossless coding is applied on a current coding block; wherein in response to the determined result that lossless coding is applied on the current coding block, inferring a dependent syntax element to be zero, when said dependent syntax element is not present in a bitstream; and coding the current coding block by lossless coding based on the dependent syntax element.

IPC 8 full level

H04N 19/70 (2014.01); H04N 19/157 (2014.01)

CPC (source: EP)

H04N 19/105 (2014.11); H04N 19/119 (2014.11); H04N 19/157 (2014.11); H04N 19/176 (2014.11); H04N 19/70 (2014.11)

Citation (search report)

  • [XI] WO 2015142556 A2 20150924 - VID SCALE INC [US]
  • [XYI] JOSHI R ET AL: "Interaction between pcm_flag and cu_transquant_bypass_flag", 101. MPEG MEETING; 16-7-2012 - 20-7-2012; STOCKHOLM; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11),, no. m25605, 3 July 2012 (2012-07-03), XP030053939
  • [Y] ESENLIK (HUAWEI) S ET AL: "Non-CE4: Geometrical partitioning for inter blocks", no. JVET-O0489 ; m48614, 27 June 2019 (2019-06-27), XP030219716, Retrieved from the Internet <URL:http://phenix.int-evry.fr/jvet/doc_end_user/documents/15_Gothenburg/wg11/JVET-O0489-v2.zip JVET-N1001-v5-JVET-N0489.docx> [retrieved on 20190627]
  • [A] XIU (INTERDIGITAL) X ET AL: "Rext HLS: on lossless coding", no. JCTVC-Q0106, 27 March 2014 (2014-03-27), XP030239637, Retrieved from the Internet <URL:http://phenix.int-evry.fr/jct/doc_end_user/documents/17_Valencia/wg11/JCTVC-Q0106-v3.zip JCTVC-Q0106 slides.pdf> [retrieved on 20140327]
  • See references of WO 2020263132A1

Designated contracting state (EPC)

AL 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 RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2020263132 A1 20201230; EP 3977744 A1 20220406; EP 3977744 A4 20220727

DOCDB simple family (application)

RU 2020050135 W 20200625; EP 20832816 A 20200625