BR112022018612A2 - Processamento de transformada não separável de baixa frequência na codificação de vídeo - Google Patents

Processamento de transformada não separável de baixa frequência na codificação de vídeo

Info

Publication number
BR112022018612A2
BR112022018612A2 BR112022018612A BR112022018612A BR112022018612A2 BR 112022018612 A2 BR112022018612 A2 BR 112022018612A2 BR 112022018612 A BR112022018612 A BR 112022018612A BR 112022018612 A BR112022018612 A BR 112022018612A BR 112022018612 A2 BR112022018612 A2 BR 112022018612A2
Authority
BR
Brazil
Prior art keywords
processors
video coding
transform processing
mode
current block
Prior art date
Application number
BR112022018612A
Other languages
English (en)
Inventor
Enes Egilmez Hilmi
Nalci Alican
Seregin Vadim
Karczewicz Marta
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 BR112022018612A2 publication Critical patent/BR112022018612A2/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
    • H04N19/60—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
    • H04N19/10—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
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/96—Tree coding, e.g. quad-tree 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/186—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
    • H04N19/10—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
    • H04N19/1883—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 relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
    • 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)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

PROCESSAMENTO DE TRANSFORMADA NÃO SEPARÁVEL DE BAIXA FREQUÊNCIA NA CODIFICAÇÃO DE VÍDEO. Um codec de vídeo exemplificador inclui memória configurada para armazenar os dados de vídeo e um ou mais processadores implementados em circuitos e acoplados comunicativamente à memória. O um ou mais processadores são configurados para determinar que um modo atual de codificação de um bloco atual dos dados de vídeo é um modo de particionamento de árvore única. Com base no modo atual sendo o modo de particionamento de árvore única, um ou mais processadores são configurados para absterem-se de determinar se há um coeficiente não DC para um componente de croma de uma unidade de transformada (TU) para o bloco atual e abster-se de codificar um índice de transformada não separável de baixa frequência (LFNST) em resposta à abstenção da determinação de se há o coeficiente não DC. O um ou mais processadores são configurados para codificar o bloco atual no modo de particionamento único com a LFNST desabilitada.
BR112022018612A 2020-03-27 2021-03-25 Processamento de transformada não separável de baixa frequência na codificação de vídeo BR112022018612A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202063001123P 2020-03-27 2020-03-27
US17/210,918 US11582491B2 (en) 2020-03-27 2021-03-24 Low-frequency non-separable transform processing in video coding
PCT/US2021/024168 WO2021195387A1 (en) 2020-03-27 2021-03-25 Low-frequency non-separable transform processing in video coding

Publications (1)

Publication Number Publication Date
BR112022018612A2 true BR112022018612A2 (pt) 2022-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022018612A BR112022018612A2 (pt) 2020-03-27 2021-03-25 Processamento de transformada não separável de baixa frequência na codificação de vídeo

Country Status (7)

Country Link
US (1) US11582491B2 (pt)
EP (1) EP4128769A1 (pt)
KR (1) KR20220159961A (pt)
CN (1) CN115315947A (pt)
BR (1) BR112022018612A2 (pt)
TW (1) TW202143712A (pt)
WO (1) WO2021195387A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024123148A1 (ko) * 2022-12-09 2024-06-13 엘지전자 주식회사 영상 인코딩/디코딩 방법 및 장치, 그리고 비트스트림을 저장한 기록 매체

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10306229B2 (en) 2015-01-26 2019-05-28 Qualcomm Incorporated Enhanced multiple transforms for prediction residual
US10681379B2 (en) 2015-09-29 2020-06-09 Qualcomm Incorporated Non-separable secondary transform for video coding with reorganizing
US10349085B2 (en) 2016-02-15 2019-07-09 Qualcomm Incorporated Efficient parameter storage for compact multi-pass transforms
US10448053B2 (en) 2016-02-15 2019-10-15 Qualcomm Incorporated Multi-pass non-separable transforms for video coding
AU2019217409B2 (en) * 2018-02-12 2021-04-22 Mediatek Inc. Method and apparatus of current picture referencing for video coding using adaptive motion vector resolution and sub-block prediction mode
US10863199B2 (en) 2018-03-26 2020-12-08 Qualcomm Incorporated Minimization of transform memory and latency via parallel factorizations
US10986340B2 (en) 2018-06-01 2021-04-20 Qualcomm Incorporated Coding adaptive multiple transform information for video coding
WO2020050665A1 (ko) * 2018-09-05 2020-03-12 엘지전자 주식회사 비디오 신호의 부호화/복호화 방법 및 이를 위한 장치
US11025905B2 (en) * 2018-09-14 2021-06-01 Tencent America LLC Method and device for decoding with palette mode
US11284066B2 (en) * 2018-10-10 2022-03-22 Tencent America LLC Method and apparatus for intra block copy in intra-inter blending mode and triangle prediction unit mode
KR20210095138A (ko) * 2018-12-19 2021-07-30 엘지전자 주식회사 이차 변환에 기반한 영상 코딩 방법 및 그 장치
MX2021008449A (es) * 2019-01-15 2021-11-03 Rosedale Dynamics Llc Metodo y dispositivo de codificacion de imagen usando bandera de salto de transformacion.
US11032572B2 (en) 2019-05-17 2021-06-08 Qualcomm Incorporated Low-frequency non-separable transform signaling based on zero-out patterns for video coding
KR20230088845A (ko) * 2019-06-25 2023-06-20 삼성전자주식회사 2차 변환을 이용하는 비디오 신호 처리 방법 및 장치
US11206400B2 (en) 2019-09-26 2021-12-21 Qualcomm Incorporated Low-frequency non-separable transform (LFNST) simplifications

Also Published As

Publication number Publication date
US11582491B2 (en) 2023-02-14
CN115315947A (zh) 2022-11-08
KR20220159961A (ko) 2022-12-05
EP4128769A1 (en) 2023-02-08
WO2021195387A1 (en) 2021-09-30
US20210306678A1 (en) 2021-09-30
TW202143712A (zh) 2021-11-16

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