BR112023004483A2 - Processo de filtragem para codificação de vídeo - Google Patents

Processo de filtragem para codificação de vídeo

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Publication number
BR112023004483A2
BR112023004483A2 BR112023004483A BR112023004483A BR112023004483A2 BR 112023004483 A2 BR112023004483 A2 BR 112023004483A2 BR 112023004483 A BR112023004483 A BR 112023004483A BR 112023004483 A BR112023004483 A BR 112023004483A BR 112023004483 A2 BR112023004483 A2 BR 112023004483A2
Authority
BR
Brazil
Prior art keywords
block
decoded
video data
processors
filtered
Prior art date
Application number
BR112023004483A
Other languages
English (en)
Inventor
Karczewicz Marta
Wang Hongtao
Chen Jianle
Meher Satchit Anand KOTRA Venkata
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 BR112023004483A2 publication Critical patent/BR112023004483A2/pt

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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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/134—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/80—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Data Mining & Analysis (AREA)
  • Evolutionary Computation (AREA)
  • Artificial Intelligence (AREA)
  • Molecular Biology (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)

Abstract

PROCESSO DE FILTRAGEM PARA CODIFICAÇÃO DE VÍDEO. Trata-se de um dispositivo para filtragem de dados de vídeo decodificados que inclui uma memória configurada para armazenar dados de vídeo; e um ou mais processadores implementados no conjunto de circuitos e configurados para: decodificar um bloco de dados de vídeo para formar um bloco decodificado; aplicar um filtro ao bloco decodificado para formar um bloco filtrado; multiplicar amostras do bloco filtrado por um fator de escala para formar um bloco filtrado refinado; e combinar as amostras do bloco filtrado refinado com amostras correspondentes do bloco decodificado. O um ou mais processadores podem codificar adicionalmente o bloco antes de decodificar o bloco. O um ou mais processadores podem codificar ou decodificar um valor de um elemento de sintaxe que representa o fator de escala, por exemplo, em um cabeçalho de imagem de uma imagem incluindo o bloco.
BR112023004483A 2020-09-29 2021-09-24 Processo de filtragem para codificação de vídeo BR112023004483A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202063085094P 2020-09-29 2020-09-29
US17/448,547 US11743459B2 (en) 2020-09-29 2021-09-23 Filtering process for video coding
PCT/US2021/051979 WO2022072239A1 (en) 2020-09-29 2021-09-24 Filtering process for video coding

Publications (1)

Publication Number Publication Date
BR112023004483A2 true BR112023004483A2 (pt) 2023-04-04

Family

ID=80821963

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023004483A BR112023004483A2 (pt) 2020-09-29 2021-09-24 Processo de filtragem para codificação de vídeo

Country Status (8)

Country Link
US (2) US11743459B2 (pt)
EP (1) EP4222953A1 (pt)
JP (1) JP2023542840A (pt)
KR (1) KR20230078653A (pt)
CN (1) CN116235494A (pt)
BR (1) BR112023004483A2 (pt)
TW (1) TW202213996A (pt)
WO (1) WO2022072239A1 (pt)

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Also Published As

Publication number Publication date
US11743459B2 (en) 2023-08-29
JP2023542840A (ja) 2023-10-12
TW202213996A (zh) 2022-04-01
US20230283772A1 (en) 2023-09-07
KR20230078653A (ko) 2023-06-02
CN116235494A (zh) 2023-06-06
WO2022072239A1 (en) 2022-04-07
EP4222953A1 (en) 2023-08-09
US20220103816A1 (en) 2022-03-31

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