BR112021017448A2 - Codificação de coeficiente para modo de salto de transformada - Google Patents

Codificação de coeficiente para modo de salto de transformada

Info

Publication number
BR112021017448A2
BR112021017448A2 BR112021017448A BR112021017448A BR112021017448A2 BR 112021017448 A2 BR112021017448 A2 BR 112021017448A2 BR 112021017448 A BR112021017448 A BR 112021017448A BR 112021017448 A BR112021017448 A BR 112021017448A BR 112021017448 A2 BR112021017448 A2 BR 112021017448A2
Authority
BR
Brazil
Prior art keywords
coefficient
value
jump mode
neighboring
currently
Prior art date
Application number
BR112021017448A
Other languages
English (en)
Inventor
Hongtao Wang
Marta Karczewicz
Zeyd Coban Muhammed
Original Assignee
Qualcomm 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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112021017448A2 publication Critical patent/BR112021017448A2/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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/70—Methods 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
    • 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
    • H04N19/90—Methods 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

codificação de coeficiente para modo de salto de transformada. a presente invenção refere-se a um dispositivo para decodificar dados de vídeo que determina, para um bloco residual de dados de vídeo codificados usando um modo de salto de transformada, um valor para um primeiro coeficiente vizinho de um coeficiente sendo atualmente decodificado; determina um valor para um segundo coeficiente vizinho do coeficiente sendo atualmente decodificado; determina um desvio de contexto para o coeficiente sendo atualmente decodificado com base no valor para o primeiro coeficiente vizinho e no valor para o segundo coeficiente vizinho; e decodifica um valor para o coeficiente sendo atualmente decodificado com base no desvio de contexto determinado.
BR112021017448A 2019-03-11 2020-03-11 Codificação de coeficiente para modo de salto de transformada BR112021017448A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962816745P 2019-03-11 2019-03-11
US201962850453P 2019-05-20 2019-05-20
US16/814,654 US11202100B2 (en) 2019-03-11 2020-03-10 Coefficient coding for transform skip mode
PCT/US2020/022065 WO2020185875A1 (en) 2019-03-11 2020-03-11 Coefficient coding for transform skip mode

Publications (1)

Publication Number Publication Date
BR112021017448A2 true BR112021017448A2 (pt) 2021-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021017448A BR112021017448A2 (pt) 2019-03-11 2020-03-11 Codificação de coeficiente para modo de salto de transformada

Country Status (14)

Country Link
US (1) US11202100B2 (pt)
EP (1) EP3939284A1 (pt)
JP (1) JP2022523789A (pt)
KR (1) KR20210134337A (pt)
CN (1) CN113545058A (pt)
AU (1) AU2020239051A1 (pt)
BR (1) BR112021017448A2 (pt)
CA (1) CA3130803A1 (pt)
CL (1) CL2021002355A1 (pt)
CO (1) CO2021011790A2 (pt)
IL (1) IL285621B2 (pt)
MX (1) MX2021011042A (pt)
SG (1) SG11202108728RA (pt)
WO (1) WO2020185875A1 (pt)

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WO2020219733A1 (en) 2019-04-24 2020-10-29 Bytedance Inc. Quantized residual differential pulse code modulation representation of coded video
CN113796069B (zh) 2019-05-01 2024-03-08 字节跳动有限公司 使用量化残差差分脉冲编解码调制编解码的帧内编解码视频
CN113785306B (zh) 2019-05-02 2024-06-14 字节跳动有限公司 基于编解码树结构类型的编解码模式
WO2021059652A1 (ja) * 2019-09-25 2021-04-01 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置、復号装置、符号化方法、および復号方法
JP7493612B2 (ja) * 2020-03-31 2024-05-31 エルジー エレクトロニクス インコーポレイティド レジデュアルコーディングに対する映像デコーディング方法及びその装置
WO2021197407A1 (en) * 2020-04-02 2021-10-07 Beijing Bytedance Network Technology Co., Ltd. Video coding using adaptation parameter sets
US20220353547A1 (en) * 2021-04-16 2022-11-03 Tencent America LLC Entropy coding of sign map for transform coefficients
WO2023134903A1 (en) * 2022-01-13 2023-07-20 Nokia Technologies Oy An apparatus, a method and a computer program for cross-component parameter determination

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US7626518B2 (en) * 2006-06-08 2009-12-01 Via Technologies, Inc. Decoding systems and methods in computational core of programmable graphics processing unit
US9106913B2 (en) * 2011-03-08 2015-08-11 Qualcomm Incorporated Coding of transform coefficients for video coding
CN107529708B (zh) * 2011-06-16 2019-05-07 Ge视频压缩有限责任公司 解码器、编码器、解码和编码视频的方法及存储介质
US10390046B2 (en) 2011-11-07 2019-08-20 Qualcomm Incorporated Coding significant coefficient information in transform skip mode
US9621921B2 (en) 2012-04-16 2017-04-11 Qualcomm Incorporated Coefficient groups and coefficient coding for coefficient scans
US9426466B2 (en) 2012-06-22 2016-08-23 Qualcomm Incorporated Transform skip mode
US9538175B2 (en) * 2012-09-26 2017-01-03 Qualcomm Incorporated Context derivation for context-adaptive, multi-level significance coding
US9591315B2 (en) * 2012-10-01 2017-03-07 Telefonaktiebolaget Lm Ericsson (Publ) Coding and decoding of transform skipped blocks
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US10574993B2 (en) * 2015-05-29 2020-02-25 Qualcomm Incorporated Coding data using an enhanced context-adaptive binary arithmetic coding (CABAC) design
WO2018190595A1 (ko) * 2017-04-13 2018-10-18 엘지전자(주) 비디오 신호를 엔트로피 인코딩, 디코딩하는 방법 및 장치
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Also Published As

Publication number Publication date
MX2021011042A (es) 2021-10-13
CN113545058A (zh) 2021-10-22
AU2020239051A1 (en) 2021-09-09
IL285621B1 (en) 2024-01-01
IL285621A (en) 2021-09-30
CO2021011790A2 (es) 2021-09-20
US20200296420A1 (en) 2020-09-17
US11202100B2 (en) 2021-12-14
SG11202108728RA (en) 2021-09-29
CA3130803A1 (en) 2020-09-17
CL2021002355A1 (es) 2022-06-03
EP3939284A1 (en) 2022-01-19
KR20210134337A (ko) 2021-11-09
IL285621B2 (en) 2024-05-01
WO2020185875A1 (en) 2020-09-17
JP2022523789A (ja) 2022-04-26
TW202041009A (zh) 2020-11-01

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