BR112022014652A2 - Método, aparelho e sistema para codificar e decodificar um bloco de amostras de vídeo - Google Patents

Método, aparelho e sistema para codificar e decodificar um bloco de amostras de vídeo

Info

Publication number
BR112022014652A2
BR112022014652A2 BR112022014652A BR112022014652A BR112022014652A2 BR 112022014652 A2 BR112022014652 A2 BR 112022014652A2 BR 112022014652 A BR112022014652 A BR 112022014652A BR 112022014652 A BR112022014652 A BR 112022014652A BR 112022014652 A2 BR112022014652 A2 BR 112022014652A2
Authority
BR
Brazil
Prior art keywords
block
sub
decoding
equipment
video samples
Prior art date
Application number
BR112022014652A
Other languages
English (en)
Inventor
gan Jonathan
Original Assignee
Canon Kk
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 Canon Kk filed Critical Canon Kk
Publication of BR112022014652A2 publication Critical patent/BR112022014652A2/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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • 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
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/70—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

Abstract

MÉTODO, APARELHO E SISTEMA PARA CODIFICAR E DECODIFICAR UM BLOCO DE AMOSTRAS DE VÍDEO. A presente invenção refere-se a um sistema e um método para decodificar um sub-bloco de coeficientes residuais de um bloco de transformada a partir de um fluxo de bits de vídeo. O método compreende determinar se a ocultação de bit de sinal é usada para o sub-bloco, a determinação com base em um valor de um sinalizador de salto de transformada determinado para o sub-bloco e um valor de um sinalizador de ocultação de bit de sinal associado ao sub-bloco; se a ocultação de bit de sinal não for usada, decodificar um número de bits de sinal igual a um número de coeficientes significativos no sub-bloco; e decodificar o sub-bloco reconstruindo os coeficientes residuais do sub-bloco utilizando os bits de sinal decodificados.
BR112022014652A 2020-03-10 2020-11-23 Método, aparelho e sistema para codificar e decodificar um bloco de amostras de vídeo BR112022014652A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2020201753A AU2020201753B2 (en) 2020-03-10 2020-03-10 Method, apparatus and system for encoding and decoding a block of video samples
PCT/AU2020/051270 WO2021179034A1 (en) 2020-03-10 2020-11-23 Method, apparatus and system for encoding and decoding a block of video samples

Publications (1)

Publication Number Publication Date
BR112022014652A2 true BR112022014652A2 (pt) 2022-09-20

Family

ID=77670368

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022014652A BR112022014652A2 (pt) 2020-03-10 2020-11-23 Método, aparelho e sistema para codificar e decodificar um bloco de amostras de vídeo

Country Status (9)

Country Link
US (1) US20230140041A1 (pt)
EP (1) EP4118827A4 (pt)
JP (2) JP7441314B2 (pt)
KR (1) KR20220127337A (pt)
CN (1) CN115088259A (pt)
AU (1) AU2020201753B2 (pt)
BR (1) BR112022014652A2 (pt)
TW (1) TWI813922B (pt)
WO (1) WO2021179034A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021201550A1 (ko) * 2020-03-31 2021-10-07 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
KR20220164750A (ko) * 2020-03-31 2022-12-13 엘지전자 주식회사 Tsrc 가용 플래그를 포함한 영상 정보를 코딩하는 영상 디코딩 방법 및 그 장치
WO2023236113A1 (zh) * 2022-06-08 2023-12-14 Oppo广东移动通信有限公司 视频编解码方法、装置、设备、系统及存储介质
WO2024008060A1 (en) * 2022-07-05 2024-01-11 Mediatek Inc. Method and apparatus of dependent quantization for video coding
WO2024060099A1 (zh) * 2022-09-21 2024-03-28 Oppo广东移动通信有限公司 编解码方法、码流、编码器、解码器以及存储介质

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9313498B2 (en) * 2012-04-16 2016-04-12 Qualcomm Incorporated Sign hiding techniques for quantized transform coefficients in video coding
JPWO2013190990A1 (ja) * 2012-06-22 2016-05-26 シャープ株式会社 算術復号装置、算術符号化装置、画像復号装置、および画像符号化装置
US20140286412A1 (en) * 2013-03-25 2014-09-25 Qualcomm Incorporated Intra dc prediction for lossless coding in video coding
US9456210B2 (en) * 2013-10-11 2016-09-27 Blackberry Limited Sign coding for blocks with transform skipped
JP7469904B2 (ja) * 2020-02-21 2024-04-17 シャープ株式会社 画像復号装置、画像符号化装置、画像復号方法及び画像符号化方法
WO2021172912A1 (ko) 2020-02-27 2021-09-02 엘지전자 주식회사 사인 데이터 하이딩 관련 영상 디코딩 방법 및 그 장치

Also Published As

Publication number Publication date
EP4118827A1 (en) 2023-01-18
JP2024054338A (ja) 2024-04-16
WO2021179034A1 (en) 2021-09-16
US20230140041A1 (en) 2023-05-04
KR20220127337A (ko) 2022-09-19
AU2020201753B2 (en) 2022-09-08
TWI813922B (zh) 2023-09-01
AU2020201753A1 (en) 2021-09-30
JP7441314B2 (ja) 2024-02-29
TW202135530A (zh) 2021-09-16
JP2023513414A (ja) 2023-03-31
EP4118827A4 (en) 2024-04-24
CN115088259A (zh) 2022-09-20

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