BR112022001333A2 - Transformação secundária para codificação e decodificação de vídeo - Google Patents

Transformação secundária para codificação e decodificação de vídeo

Info

Publication number
BR112022001333A2
BR112022001333A2 BR112022001333A BR112022001333A BR112022001333A2 BR 112022001333 A2 BR112022001333 A2 BR 112022001333A2 BR 112022001333 A BR112022001333 A BR 112022001333A BR 112022001333 A BR112022001333 A BR 112022001333A BR 112022001333 A2 BR112022001333 A2 BR 112022001333A2
Authority
BR
Brazil
Prior art keywords
decoding
video encoding
encoding
secondary transformation
transformation
Prior art date
Application number
BR112022001333A
Other languages
English (en)
Inventor
Fabrice Leleannec
Franck GALPIN
Karam Naser
Tangi Poirier
Original Assignee
Interdigital Vc Holdings France Sas
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 Interdigital Vc Holdings France Sas filed Critical Interdigital Vc Holdings France Sas
Publication of BR112022001333A2 publication Critical patent/BR112022001333A2/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
    • H04N19/10—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/117—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
    • H04N19/119—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
    • H04N19/102—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
    • H04N19/10—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
    • H04N19/50—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
    • H04N19/60—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
    • 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
    • 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

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

transformação secundária para codificação e decodificação de vídeo. a presente invenção se refere a um método e aparelho para codificar/decodificar uma imagem que usa uma transformação secundária para codificação e decodificação de vídeo no modo intra e, mais particularmente, usa uma transformação secundária para as unidades de transformação de uma unidade de codificação no modo subdivisão intra. diferentes variantes de sinalização e seleção são propostas de acordo com vários parâmetros da unidade de codificação e unidade de transformação.
BR112022001333A 2019-08-06 2020-07-27 Transformação secundária para codificação e decodificação de vídeo BR112022001333A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP19306007 2019-08-06
EP19306174 2019-09-23
EP19306182 2019-09-24
PCT/EP2020/071151 WO2021023552A1 (en) 2019-08-06 2020-07-27 Secondary transform for video encoding and decoding

Publications (1)

Publication Number Publication Date
BR112022001333A2 true BR112022001333A2 (pt) 2022-03-22

Family

ID=71728748

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022001333A BR112022001333A2 (pt) 2019-08-06 2020-07-27 Transformação secundária para codificação e decodificação de vídeo

Country Status (8)

Country Link
US (1) US20220345744A1 (pt)
EP (1) EP4011073A1 (pt)
KR (1) KR20220036982A (pt)
CN (1) CN114208178A (pt)
BR (1) BR112022001333A2 (pt)
CA (1) CA3149102A1 (pt)
TW (1) TW202107897A (pt)
WO (1) WO2021023552A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202118299A (zh) * 2019-09-13 2021-05-01 法商內數位Ｖｃ控股法國公司 與其他轉換工具之最大轉換尺度互動
JP7299413B2 (ja) 2019-09-21 2023-06-27 エルジー エレクトロニクス インコーポレイティド 変換に基づく映像コーディング方法及びその装置
AU2020375518B2 (en) * 2019-11-01 2024-02-29 Lg Electronics Inc. Image coding method based on transform, and device therefor
CN114830655B (zh) * 2019-12-12 2023-08-18 寰发股份有限公司 视频编解码的方法与装置
WO2021141443A1 (ko) * 2020-01-10 2021-07-15 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
WO2021190593A1 (en) * 2020-03-25 2021-09-30 Beijing Bytedance Network Technology Co., Ltd. Coded video processing using enhanced secondary transform

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10491922B2 (en) * 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
EP3443746B1 (en) * 2016-05-17 2021-07-21 ARRIS Enterprises LLC Template matching for jvet intra prediction
US11095893B2 (en) * 2016-10-12 2021-08-17 Qualcomm Incorporated Primary transform and secondary transform in video coding
EP3462744A1 (en) * 2017-09-28 2019-04-03 Thomson Licensing Method and apparatus for encoding a picture block
US10827173B2 (en) * 2017-11-13 2020-11-03 Electronics And Telecommunications Research Institute Method and apparatus for quantization
US11240534B2 (en) * 2019-04-05 2022-02-01 Qualcomm Incorporated Extended multiple transform selection for video coding

Also Published As

Publication number Publication date
CN114208178A (zh) 2022-03-18
KR20220036982A (ko) 2022-03-23
CA3149102A1 (en) 2021-02-11
US20220345744A1 (en) 2022-10-27
WO2021023552A1 (en) 2021-02-11
TW202107897A (zh) 2021-02-16
EP4011073A1 (en) 2022-06-15

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