CA2971764A1 - Contexts for large coding tree units - Google Patents

Contexts for large coding tree units Download PDF

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Publication number
CA2971764A1
CA2971764A1 CA2971764A CA2971764A CA2971764A1 CA 2971764 A1 CA2971764 A1 CA 2971764A1 CA 2971764 A CA2971764 A CA 2971764A CA 2971764 A CA2971764 A CA 2971764A CA 2971764 A1 CA2971764 A1 CA 2971764A1
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CA
Canada
Prior art keywords
depth
context
current
syntax element
video
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2971764A
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English (en)
French (fr)
Other versions
CA2971764C (en
Inventor
Xiang Li
Li Zhang
Jianle Chen
Marta Karczewicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CA2971764A1 publication Critical patent/CA2971764A1/en
Application granted granted Critical
Publication of CA2971764C publication Critical patent/CA2971764C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CA2971764A 2015-01-27 2016-01-27 Contexts for large coding tree units Active CA2971764C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201562108465P 2015-01-27 2015-01-27
US62/108,465 2015-01-27
US15/007,060 2016-01-26
US15/007,060 US9936201B2 (en) 2015-01-27 2016-01-26 Contexts for large coding tree units
PCT/US2016/015034 WO2016123169A1 (en) 2015-01-27 2016-01-27 Contexts for large coding tree units

Publications (2)

Publication Number Publication Date
CA2971764A1 true CA2971764A1 (en) 2016-08-04
CA2971764C CA2971764C (en) 2025-08-12

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Also Published As

Publication number Publication date
BR112017016159B1 (pt) 2023-11-07
BR112017016159A2 (pt) 2018-04-17
JP2018506912A (ja) 2018-03-08
EP3251354A1 (en) 2017-12-06
KR102452744B1 (ko) 2022-10-07
EA201791429A1 (ru) 2017-11-30
TN2017000309A1 (en) 2019-01-16
US20160219276A1 (en) 2016-07-28
CN107211132A (zh) 2017-09-26
US10298930B2 (en) 2019-05-21
WO2016123169A1 (en) 2016-08-04
EP3251354B1 (en) 2022-04-20
EA034984B1 (ru) 2020-04-14
JP6462886B2 (ja) 2019-01-30
TWI686080B (zh) 2020-02-21
CN107211132B (zh) 2019-10-18
KR20170108011A (ko) 2017-09-26
US20180227580A1 (en) 2018-08-09
TW201635798A (zh) 2016-10-01
US9936201B2 (en) 2018-04-03

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