BR112022003668A2 - Dispositivo e método de processamento de imagem - Google Patents

Dispositivo e método de processamento de imagem

Info

Publication number
BR112022003668A2
BR112022003668A2 BR112022003668A BR112022003668A BR112022003668A2 BR 112022003668 A2 BR112022003668 A2 BR 112022003668A2 BR 112022003668 A BR112022003668 A BR 112022003668A BR 112022003668 A BR112022003668 A BR 112022003668A BR 112022003668 A2 BR112022003668 A2 BR 112022003668A2
Authority
BR
Brazil
Prior art keywords
devices
image
transform
image processing
coefficient
Prior art date
Application number
BR112022003668A
Other languages
English (en)
Inventor
Takeshi Tsukuba
Original Assignee
Sony Group Corp
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 Sony Group Corp filed Critical Sony Group Corp
Publication of BR112022003668A2 publication Critical patent/BR112022003668A2/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
    • H04N19/70—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
    • H04N19/10—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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/60—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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/507—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction using conditional replenishment
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Landscapes

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

Abstract

dispositivo e método de processamento de imagem. a presente divulgação refere-se a um dispositivo e método de processamento de imagem com o qual é possível conter a perda de informação devido à codificação e decodificação. um coeficiente de quantização é submetido a uma quantização inversa usando um parâmetro de quantização que depende se um salto de transformada deve ser aplicado. se um salto de transformada não é para ser aplicado um coeficiente de transformada gerado pela quantização inversa é submetido a uma transformação de coeficiente inversa, e um resíduo predito que é um resíduo entre uma imagem e um imagem predita da imagem é gerado. se um salto de transformada deve ser aplicado, a transformação de coeficiente inversa é saltada. a presente divulgação pode ser aplicada a, por exemplo, dispositivos de processamento de imagem, dispositivos de codificação de imagem, dispositivos de decodificação de imagem, dispositivos de transmissão, dispositivos de recepção, dispositivos de transmissão/recepção, dispositivos de processamento de informação, dispositivos de imagem, dispositivos de reprodução, aparelhos eletrônicos, métodos de processamento de imagem ou métodos de processamento de informação.
BR112022003668A 2019-09-06 2020-09-04 Dispositivo e método de processamento de imagem BR112022003668A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962896989P 2019-09-06 2019-09-06
US201962901895P 2019-09-18 2019-09-18
PCT/JP2020/033573 WO2021045188A1 (ja) 2019-09-06 2020-09-04 画像処理装置および方法

Publications (1)

Publication Number Publication Date
BR112022003668A2 true BR112022003668A2 (pt) 2022-05-24

Family

ID=74853204

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022003668A BR112022003668A2 (pt) 2019-09-06 2020-09-04 Dispositivo e método de processamento de imagem

Country Status (11)

Country Link
US (1) US20220224903A1 (pt)
EP (1) EP4013054A4 (pt)
JP (1) JPWO2021045188A1 (pt)
KR (1) KR20220053563A (pt)
CN (1) CN114342396A (pt)
AU (1) AU2020341156A1 (pt)
BR (1) BR112022003668A2 (pt)
CA (1) CA3149873A1 (pt)
MX (1) MX2022002267A (pt)
TW (1) TW202121897A (pt)
WO (1) WO2021045188A1 (pt)

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CN114365490B (zh) 2019-09-09 2024-06-18 北京字节跳动网络技术有限公司 高精度图像和视频编解码的系数缩放
CN114731392A (zh) * 2019-09-21 2022-07-08 北京字节跳动网络技术有限公司 用于图像和视频编解码的高精度变换和量化
WO2021158049A1 (ko) * 2020-02-05 2021-08-12 엘지전자 주식회사 영상 정보 코딩에 대한 영상 디코딩 방법 및 그 장치
WO2021158051A1 (ko) * 2020-02-05 2021-08-12 엘지전자 주식회사 레지듀얼 코딩과 관련한 영상 디코딩 방법 및 그 장치
WO2023220946A1 (zh) * 2022-05-17 2023-11-23 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

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JP5741730B2 (ja) * 2010-12-09 2015-07-01 ソニー株式会社 画像処理装置及び画像処理方法
US9270986B2 (en) * 2012-04-13 2016-02-23 Qualcomm Incorporated Level decision in rate distortion optimized quantization
TWI592011B (zh) * 2012-06-29 2017-07-11 Sony Corp Image processing device and method
CN104662901B (zh) * 2012-09-28 2018-06-22 索尼公司 图像处理装置及方法
US10021419B2 (en) * 2013-07-12 2018-07-10 Qualcomm Incorported Rice parameter initialization for coefficient level coding in video coding process
WO2015012600A1 (ko) * 2013-07-23 2015-01-29 성균관대학교 산학협력단 영상 부호화/복호화 방법 및 장치
WO2015104963A1 (ja) * 2014-01-09 2015-07-16 株式会社日立国際電気 画像処理装置及び動画像伝送方法
JP2017073602A (ja) * 2015-10-05 2017-04-13 富士通株式会社 動画像符号化装置、動画像符号化方法及び動画像符号化用コンピュータプログラム
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Also Published As

Publication number Publication date
MX2022002267A (es) 2022-03-22
TW202121897A (zh) 2021-06-01
US20220224903A1 (en) 2022-07-14
EP4013054A1 (en) 2022-06-15
JPWO2021045188A1 (pt) 2021-03-11
CN114342396A (zh) 2022-04-12
KR20220053563A (ko) 2022-04-29
WO2021045188A1 (ja) 2021-03-11
CA3149873A1 (en) 2021-03-11
AU2020341156A1 (en) 2022-03-03
EP4013054A4 (en) 2022-10-26

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