KR20220100726A - 비디오 코딩을 위한 방법 및 장치 - Google Patents

비디오 코딩을 위한 방법 및 장치 Download PDF

Info

Publication number
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
Authority
KR
South Korea
Prior art keywords
transform
context
block
primary
index
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
KR1020227022398A
Other languages
English (en)
Korean (ko)
Inventor
크리슈난 마두 페링가세리
신 자오
샨 리우
Original Assignee
텐센트 아메리카 엘엘씨
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 텐센트 아메리카 엘엘씨 filed Critical 텐센트 아메리카 엘엘씨
Publication of KR20220100726A publication Critical patent/KR20220100726A/ko
Ceased legal-status Critical Current

Links

Images

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
    • 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

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

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
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

Publications (1)

Publication Number Publication Date
KR20220100726A true KR20220100726A (ko) 2022-07-15

Family

ID=81453773

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020227022398A Ceased KR20220100726A (ko) 2020-11-11 2021-06-29 비디오 코딩을 위한 방법 및 장치

Country Status (6)

Country Link
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY181285A (en) * 2012-07-02 2020-12-21 Samsung Electronics Co Ltd Method and apparatus for entropy coding video and method and apparatus for entropy decoding video
US10681379B2 (en) 2015-09-29 2020-06-09 Qualcomm Incorporated Non-separable secondary transform for video coding with reorganizing
EP3629581A1 (en) 2015-10-13 2020-04-01 Samsung Electronics Co., Ltd. Method and device for encoding or decoding image
CN117412043A (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
WO2018174402A1 (ko) * 2017-03-21 2018-09-27 엘지전자 주식회사 영상 코딩 시스템에서 변환 방법 및 그 장치
KR20240040133A (ko) * 2018-04-01 2024-03-27 엘지전자 주식회사 분할된 블록에 2차 변환을 적용하여 비디오 신호를 처리하는 방법 및 장치
HRP20230521T1 (hr) 2018-06-03 2023-08-04 Lg Electronics Inc. Postupak i uređaj za obradu video signala pomoću smanjene transformacije
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
KR20250029279A (ko) * 2018-07-02 2025-03-04 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 이차 변환을 기반으로 비디오 신호를 처리하는 방법 및 장치
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
KR102392701B1 (ko) * 2019-01-15 2022-04-28 엘지전자 주식회사 변환 스킵 플래그를 이용한 영상 코딩 방법 및 장치
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

Also Published As

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

Similar Documents

Publication Publication Date Title
US11800126B2 (en) Video encoding using a directional mode and a non-separable transform
US11516479B2 (en) Method and apparatus for video decoding of an affine model in an intra block copy mode
US20190306498A1 (en) Method and apparatus for video decoding using multiple line intra prediction
KR102647645B1 (ko) 비디오 코딩을 위한 방법 및 장치
JP7670799B2 (ja) デコーダが実行するビデオデコーディングの方法、装置、及びプログラム、並びにエンコーダが実行するビデオコーディングの方法
US12418669B2 (en) Sign coding for one-dimensional transform skip
US11930186B2 (en) Method and apparatus for video coding
EP4473728A1 (en) Adaptive parameter selection for cross-component prediction in image and video compression
JP2023528483A (ja) ビデオ情報を処理するための方法、デバイス、およびコンピュータプログラム
JP2024088772A (ja) ビデオコーティングのための方法、及び装置
KR20230075498A (ko) 2차 변환 계수들의 스캔 순서
KR20230170759A (ko) 1차원 변환 스킵을 위한 eob의 시그널링
JP2023549771A (ja) 適応カーネルオプションを用いた二次変換の方法および装置
KR20220143895A (ko) 변환 파티셔닝과 1차/2차 변환 유형 선택 사이의 상호작용
US12526452B2 (en) Quantizer for one-dimensional transform skip

Legal Events

Date Code Title Description
A201 Request for examination
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

B15 Application refused following examination

Free format text: ST27 STATUS EVENT CODE: N-2-6-B10-B15-EXM-PE0601 (AS PROVIDED BY THE NATIONAL OFFICE)

PE0601 Decision on rejection of patent

St.27 status event code: N-2-6-B10-B15-exm-PE0601

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-NAP-X000 (AS PROVIDED BY THE NATIONAL OFFICE)

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000