KR20220100726A - 비디오 코딩을 위한 방법 및 장치 - Google Patents

비디오 코딩을 위한 방법 및 장치 Download PDF

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KR20220100726A
KR20220100726A KR1020227022398A KR20227022398A KR20220100726A KR 20220100726 A KR20220100726 A KR 20220100726A KR 1020227022398 A KR1020227022398 A KR 1020227022398A KR 20227022398 A KR20227022398 A KR 20227022398A KR 20220100726 A KR20220100726 A KR 20220100726A
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transform
context
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크리슈난 마두 페링가세리
신 자오
샨 리우
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텐센트 아메리카 엘엘씨
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    • 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
    • H04N19/10—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
    • H04N19/12—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
    • H04N19/102—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/184—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
    • H04N19/50—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
    • H04N19/625—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
    • H04N19/70—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
    • 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

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  • 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)
KR1020227022398A 2020-11-11 2021-06-29 비디오 코딩을 위한 방법 및 장치 Ceased KR20220100726A (ko)

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US202063112529P 2020-11-11 2020-11-11
US63/112,529 2020-11-11
US17/360,431 2021-06-28
US17/360,431 US11930186B2 (en) 2020-11-11 2021-06-28 Method and apparatus for video coding
PCT/US2021/039633 WO2022103444A1 (en) 2020-11-11 2021-06-29 Method and apparatus for video coding

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KR20220100726A true KR20220100726A (ko) 2022-07-15

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US (3) US11930186B2 (https=)
EP (1) EP4055828A4 (https=)
JP (2) JP7520328B2 (https=)
KR (1) KR20220100726A (https=)
CN (2) CN115088260A (https=)
WO (1) WO2022103444A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024049024A1 (ko) * 2022-08-29 2024-03-07 현대자동차주식회사 1차 변환 커널에 적응적인 분리 불가능한 2차 변환 기반 비디오 코딩을 위한 방법 및 장치

Families Citing this family (3)

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WO2024020117A1 (en) * 2022-07-19 2024-01-25 Google Llc Dependent context model for transform types
US20250047849A1 (en) * 2023-08-02 2025-02-06 Tencent America LLC Methods and systems for signaling and performing secondary transforms
US20250233992A1 (en) * 2024-01-12 2025-07-17 Tencent America LLC List construction and signaling of transform types and transform sets

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WO2014007524A1 (ko) * 2012-07-02 2014-01-09 삼성전자 주식회사 비디오의 엔트로피 부호화 방법 및 장치, 비디오의 엔트로피 복호화 방법 및 장치
US10491922B2 (en) 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
CN112929659B (zh) 2015-10-13 2023-12-26 三星电子株式会社 用于对图像进行编码或解码的方法和设备
CN117412044A (zh) * 2016-07-13 2024-01-16 韩国电子通信研究院 图像编码/解码方法和装置
RU2722394C1 (ru) * 2017-03-21 2020-05-29 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ преобразования в системе кодирования изображений и устройство для его осуществления
WO2019194503A1 (ko) * 2018-04-01 2019-10-10 엘지전자 주식회사 분할된 블록에 2차 변환을 적용하여 비디오 신호를 처리하는 방법 및 장치
ES3030533T3 (en) 2018-06-03 2025-06-30 Lg Electronics Inc Method and device for processing video signal by using reduced transform
AU2018204775A1 (en) * 2018-06-29 2020-01-16 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a transformed block of video samples
CN112400322B (zh) * 2018-07-02 2023-04-14 Lg电子株式会社 基于二次变换处理视频信号的方法和设备
JP2020053924A (ja) * 2018-09-28 2020-04-02 シャープ株式会社 動画像符号化装置、動画像復号装置
BR122021012456B1 (pt) * 2019-01-15 2022-03-22 Lg Electronics Inc Método de decodificação de uma imagem realizado por um aparelho de decodificação, método de codificação de uma imagem realizado por um aparelho de codificação, aparelho de decodificação para decodificação de imagem, aparelho de codificação para codificação de imagem e mídia de armazenamento digital legível por computador não transitória
US11025909B2 (en) 2019-03-21 2021-06-01 Tencent America LLC Method and apparatus for video coding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024049024A1 (ko) * 2022-08-29 2024-03-07 현대자동차주식회사 1차 변환 커널에 적응적인 분리 불가능한 2차 변환 기반 비디오 코딩을 위한 방법 및 장치

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JP7520328B2 (ja) 2024-07-23
US20260032259A1 (en) 2026-01-29
JP7817307B2 (ja) 2026-02-18
US20240163455A1 (en) 2024-05-16
US11930186B2 (en) 2024-03-12
US20220150510A1 (en) 2022-05-12
CN120935359A (zh) 2025-11-11
US12452433B2 (en) 2025-10-21
JP2024074928A (ja) 2024-05-31
CN115088260A (zh) 2022-09-20
WO2022103444A1 (en) 2022-05-19
JP2023513772A (ja) 2023-04-03
EP4055828A1 (en) 2022-09-14
EP4055828A4 (en) 2023-03-08

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