BR112021018554A2 - Codificador, decodificador e métodos correspondentes para predição intra - Google Patents

Codificador, decodificador e métodos correspondentes para predição intra

Info

Publication number
BR112021018554A2
BR112021018554A2 BR112021018554A BR112021018554A BR112021018554A2 BR 112021018554 A2 BR112021018554 A2 BR 112021018554A2 BR 112021018554 A BR112021018554 A BR 112021018554A BR 112021018554 A BR112021018554 A BR 112021018554A BR 112021018554 A2 BR112021018554 A2 BR 112021018554A2
Authority
BR
Brazil
Prior art keywords
intra prediction
xcb
ycb
current block
decoder
Prior art date
Application number
BR112021018554A
Other languages
English (en)
Inventor
Meher Kotra Anand
Biao Wang
Han Gao
Jianle Chen
Semih Esenlik
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112021018554A2 publication Critical patent/BR112021018554A2/pt

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    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/102—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
    • 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
    • H04N19/134—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
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

codificador, decodificador e métodos correspondentes para predição intra. dispositivos e métodos para predição intra são fornecidos. o método inclui: obter um valor de informações de indicação de um bloco atual. quando o valor das informações de indicação indicar que o modo de predição intra do bloco atual não está compreendido no conjunto de modos mais prováveis, derivar o modo de predição intra intrapredmodey[ xcb ][ ycb ] do bloco atual pelas seguintes etapas ordenadas: i. intrapredmodey[ xcb ][ ycb ] é definido igual a intra_luma_mpm_remainder[ xcb ][ ycb ], ii. o valor de intrapredmodey[ xcb ][ ycb ] é incrementado em 1. o método pode aumentar a eficiência para determinar o modo de predição intra do bloco atual.
BR112021018554A 2019-03-23 2020-03-23 Codificador, decodificador e métodos correspondentes para predição intra BR112021018554A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962822865P 2019-03-23 2019-03-23
US201962824282P 2019-03-26 2019-03-26
US201962824360P 2019-03-27 2019-03-27
PCT/CN2020/080674 WO2020192629A1 (en) 2019-03-23 2020-03-23 An encoder, a decoder and corresponding methods for intra prediction

Publications (1)

Publication Number Publication Date
BR112021018554A2 true BR112021018554A2 (pt) 2021-11-30

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BR112021018535A BR112021018535A2 (pt) 2019-03-23 2020-03-23 Codificador, decodificador e métodos correspondentes para predição intra
BR112021018554A BR112021018554A2 (pt) 2019-03-23 2020-03-23 Codificador, decodificador e métodos correspondentes para predição intra

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Country Status (15)

Country Link
US (5) US11070799B2 (pt)
EP (4) EP4307675A3 (pt)
JP (4) JP7303322B2 (pt)
KR (2) KR20210134402A (pt)
CN (4) CN114650419B (pt)
AU (4) AU2020246733B2 (pt)
BR (2) BR112021018535A2 (pt)
CA (2) CA3134410A1 (pt)
ES (1) ES2966479T3 (pt)
HU (1) HUE063890T2 (pt)
MX (2) MX2021011419A (pt)
PL (1) PL3932076T3 (pt)
PT (1) PT3932076T (pt)
SG (1) SG11202110425VA (pt)
WO (2) WO2020192629A1 (pt)

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MX2021011421A (es) 2022-01-06
KR20210135331A (ko) 2021-11-12
US20210314563A1 (en) 2021-10-07
US20210014505A1 (en) 2021-01-14
JP2022528049A (ja) 2022-06-08
EP4307675A2 (en) 2024-01-17
CN114173115A (zh) 2022-03-11
JP2022528050A (ja) 2022-06-08
AU2020246735B2 (en) 2023-11-09
AU2024200708A1 (en) 2024-02-22
EP3932076B1 (en) 2023-11-01
HUE063890T2 (hu) 2024-02-28
BR112021018535A2 (pt) 2021-11-23
EP3932076A4 (en) 2022-04-27
AU2020246733B2 (en) 2023-11-09
US11405610B2 (en) 2022-08-02
EP4277269A3 (en) 2024-03-06
CA3134398A1 (en) 2020-10-01
AU2024200707A1 (en) 2024-02-22
CN114650419B (zh) 2022-11-25
AU2020246735A1 (en) 2021-11-04
US20230025763A1 (en) 2023-01-26
EP3932057A4 (en) 2022-05-11
PL3932076T3 (pl) 2024-02-26
PT3932076T (pt) 2023-12-12
AU2020246733A1 (en) 2021-10-28
KR20210134402A (ko) 2021-11-09
CN114650419A (zh) 2022-06-21
US10986336B2 (en) 2021-04-20
EP3932076A1 (en) 2022-01-05
JP7401556B2 (ja) 2023-12-19
ES2966479T3 (es) 2024-04-22
JP7303322B2 (ja) 2023-07-04
EP4307675A3 (en) 2024-04-17
SG11202110425VA (en) 2021-10-28
JP2023118785A (ja) 2023-08-25
CN113615198A (zh) 2021-11-05
WO2020192629A1 (en) 2020-10-01
EP4277269A2 (en) 2023-11-15
CN114173115B (zh) 2022-10-11
MX2021011419A (es) 2022-01-06
WO2020192625A1 (en) 2020-10-01
JP2024019426A (ja) 2024-02-09
EP3932057A1 (en) 2022-01-05
US11070799B2 (en) 2021-07-20
CN113615177A (zh) 2021-11-05
US20210360234A1 (en) 2021-11-18
CA3134410A1 (en) 2020-10-01
US20200413050A1 (en) 2020-12-31

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