Global Patent Index - EP 2918078 A4

EP 2918078 A4 20161019 - METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING THE TRANSFORM UNITS OF A CODING UNIT

Title (en)

METHOD, APPARATUS AND SYSTEM FOR ENCODING AND DECODING THE TRANSFORM UNITS OF A CODING UNIT

Title (de)

VERFAHREN, VORRICHTUNG UND SYSTEM ZUR CODIERUNG UND DECODIERUNG DER TRANSFORMATIONSEINHEITEN EINER CODIERUNGSEINHEIT

Title (fr)

PROCÉDÉ, APPAREIL ET SYSTÈME POUR CODER ET DÉCODER LES UNITÉS DE TRANSFORMÉES D'UNE UNITÉ DE CODAGE

Publication

EP 2918078 A4 20161019 (EN)

Application

EP 13853085 A 20130927

Priority

  • AU 2012247040 A 20121108
  • AU 2013001117 W 20130927

Abstract (en)

[origin: WO2014071439A1] Disclosed is a method of decoding a luma transform (954; 9126) and plurality of chroma transforms (952, 956, 958, 960, 962; 9116-9122) from a video bitstream (312). The chroma transforms contain chroma data for a single colour channel. The method determines (1402) a value of a luma transform skip flag (964; 9127) for the luma transform indicating whether data of the luma transform is encoded in the video bitstream as a spatial domain representation. A value of a chroma transform skip flag (966; 9148) is determined (1404) for a first chroma transform of the plurality of chroma transforms indicating whether the data of the chroma transform is encoded in the video bitstream as a spatial domain representation. The method decodes (1406) the luma transform according to the determined luma transform skip flag and the plurality of chroma, transforms according to the determined chroma transform skip flag for the first chroma transform.

IPC 8 full level

H04N 19/119 (2014.01); H04N 19/122 (2014.01); H04N 19/136 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/61 (2014.01); H04N 19/96 (2014.01)

CPC (source: EP)

H04N 19/119 (2014.11); H04N 19/122 (2014.11); H04N 19/136 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/61 (2014.11); H04N 19/96 (2014.11)

Citation (search report)

  • [E] WO 2013160693 A2 20131031 - SONY CORP [JP], et al
  • [E] WO 2014055344 A1 20140410 - QUALCOMM INC [US]
  • [E] EP 2901673 A1 20150805 - CANON KK [JP]
  • [X] JOSHI R ET AL: "AHG7: Comments on 422 and 444 coding tools and software", 11. JCT-VC MEETING; 102. MPEG MEETING; 10-10-2012 - 19-10-2012; SHANGHAI; (JOINT COLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-K0322, 7 October 2012 (2012-10-07), XP030113204 & BROSS B ET AL: "High Efficiency Video Coding (HEVC) text specification draft 8", 10. JCT-VC MEETING; 101. MPEG MEETING; 11-7-2012 - 20-7-2012; STOCKHOLM; (JOINT COLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-J1003, 23 July 2012 (2012-07-23), XP030112947
  • [I] AN J ET AL: "Non-CE2: Separate RQT structure for Y; U and V components", 99. MPEG MEETING; 6-2-2012 - 10-2-2012; SAN JOSÉ; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. m23190, 20 January 2012 (2012-01-20), XP030051715
  • [XI] SILCOCK P ET AL: "AHG12: Extension of HM7 to Support Additional Chroma Formats", 10. JCT-VC MEETING; 101. MPEG MEETING; 11-7-2012 - 20-7-2012; STOCKHOLM; (JOINT COLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-J0191, 2 July 2012 (2012-07-02), XP030112553
  • [XA] ROSEWARNE (CISRA) C ET AL: "AHG7: Transforms for extended chroma formats", 11. JCT-VC MEETING; 102. MPEG MEETING; 10-10-2012 - 19-10-2012; SHANGHAI; (JOINT COLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-K0171, 1 October 2012 (2012-10-01), XP030113053
  • [XP] ROSEWARNE C ET AL: "CE1: Test 3 - Square transforms for Range Extensions", 103. MPEG MEETING; 21-1-2013 - 25-1-2013; GENEVA; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. m27482, 11 January 2013 (2013-01-11), XP030056052
  • [XP] SOLE J ET AL: "CE1: Test 3 - Square transform blocks for 4:2:2", 12. JCT-VC MEETING; 103. MPEG MEETING; 14-1-2013 - 23-1-2013; GENEVA; (JOINT COLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-L0333, 8 January 2013 (2013-01-08), XP030113821
  • See references of WO 2014071439A1

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

DOCDB simple family (publication)

WO 2014071439 A1 20140515; AU 2013344305 A1 20150326; AU 2017201209 A1 20170316; AU 2017201209 B2 20190131; CN 104782125 A 20150715; CN 104782125 B 20190315; EP 2918078 A1 20150916; EP 2918078 A4 20161019; JP 2015537448 A 20151224; JP 6270861 B2 20180131; KR 20150048804 A 20150507; RU 2015117258 A 20161227; RU 2641223 C2 20180116

DOCDB simple family (application)

AU 2013001117 W 20130927; AU 2013344305 A 20130927; AU 2017201209 A 20170222; CN 201380058648 A 20130927; EP 13853085 A 20130927; JP 2015539997 A 20130927; KR 20157007408 A 20130927; RU 2015117258 A 20130927