BR112020020046A2 - Codificação e decodificação de um vídeo - Google Patents

Codificação e decodificação de um vídeo Download PDF

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Publication number
BR112020020046A2
BR112020020046A2 BR112020020046-8A BR112020020046A BR112020020046A2 BR 112020020046 A2 BR112020020046 A2 BR 112020020046A2 BR 112020020046 A BR112020020046 A BR 112020020046A BR 112020020046 A2 BR112020020046 A2 BR 112020020046A2
Authority
BR
Brazil
Prior art keywords
block
transformation
sub
coefficients
size
Prior art date
Application number
BR112020020046-8A
Other languages
English (en)
Portuguese (pt)
Inventor
Fabrice LELEANNEC
Tangi POIRIER
Ya Chen
Original Assignee
Interdigital Vc Holdings, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EP18305673.8A external-priority patent/EP3576408A1/en
Application filed by Interdigital Vc Holdings, Inc. filed Critical Interdigital Vc Holdings, Inc.
Publication of BR112020020046A2 publication Critical patent/BR112020020046A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods 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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
BR112020020046-8A 2018-05-02 2019-04-24 Codificação e decodificação de um vídeo BR112020020046A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP18305542.5 2018-05-02
EP18305542 2018-05-02
EP18305673.8A EP3576408A1 (en) 2018-05-31 2018-05-31 Adaptive transformation and coefficient scan order for video coding
EP18305673.8 2018-05-31
PCT/US2019/028864 WO2019212816A1 (en) 2018-05-02 2019-04-24 Encoding and decoding a video

Publications (1)

Publication Number Publication Date
BR112020020046A2 true BR112020020046A2 (pt) 2021-01-05

Family

ID=66669043

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112020020046-8A BR112020020046A2 (pt) 2018-05-02 2019-04-24 Codificação e decodificação de um vídeo

Country Status (7)

Country Link
US (1) US20210243445A1 (https=)
EP (1) EP3788784A1 (https=)
JP (1) JP2021520698A (https=)
KR (1) KR20210002506A (https=)
CN (1) CN112042193A (https=)
BR (1) BR112020020046A2 (https=)
WO (1) WO2019212816A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240090220A (ko) * 2021-10-22 2024-06-21 엘지전자 주식회사 영상 디코딩 방법 및 그 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100095992A (ko) * 2009-02-23 2010-09-01 한국과학기술원 비디오 부호화에서의 분할 블록 부호화 방법, 비디오 복호화에서의 분할 블록 복호화 방법 및 이를 구현하는 기록매체
US9247254B2 (en) * 2011-10-27 2016-01-26 Qualcomm Incorporated Non-square transforms in intra-prediction video coding
CN107105248B (zh) * 2012-04-13 2021-05-07 佳能株式会社 视频数据的变换单位的子集的编解码的方法、设备和系统
US9544597B1 (en) * 2013-02-11 2017-01-10 Google Inc. Hybrid transform in video encoding and decoding
US10306229B2 (en) * 2015-01-26 2019-05-28 Qualcomm Incorporated Enhanced multiple transforms for prediction residual

Also Published As

Publication number Publication date
EP3788784A1 (en) 2021-03-10
KR20210002506A (ko) 2021-01-08
JP2021520698A (ja) 2021-08-19
US20210243445A1 (en) 2021-08-05
CN112042193A (zh) 2020-12-04
WO2019212816A1 (en) 2019-11-07

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Legal Events

Date Code Title Description
B350 Update of information on the portal [chapter 15.35 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2772 DE 20/02/2024.