KR102898880B1 - 비디오 코딩 방법 및 장치 - Google Patents

비디오 코딩 방법 및 장치

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Publication number
KR102898880B1
KR102898880B1 KR1020227018263A KR20227018263A KR102898880B1 KR 102898880 B1 KR102898880 B1 KR 102898880B1 KR 1020227018263 A KR1020227018263 A KR 1020227018263A KR 20227018263 A KR20227018263 A KR 20227018263A KR 102898880 B1 KR102898880 B1 KR 102898880B1
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South Korea
Prior art keywords
transform
transform coefficient
video
block
sign value
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KR1020227018263A
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English (en)
Korean (ko)
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KR20220085836A (ko
Inventor
마두 페링가세리 크리슈난
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
    • H04N19/10—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
    • H04N19/61—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
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/102—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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • 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
    • H04N19/184—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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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

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)
KR1020227018263A 2020-10-01 2021-08-05 비디오 코딩 방법 및 장치 Active KR102898880B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202063086280P 2020-10-01 2020-10-01
US63/086,280 2020-10-01
US17/339,516 US11677971B2 (en) 2020-10-01 2021-06-04 Method and apparatus for video coding
US17/339,516 2021-06-04
PCT/US2021/044727 WO2022072062A1 (en) 2020-10-01 2021-08-05 Method and apparatus for video coding

Publications (2)

Publication Number Publication Date
KR20220085836A KR20220085836A (ko) 2022-06-22
KR102898880B1 true KR102898880B1 (ko) 2025-12-12

Family

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KR1020227018263A Active KR102898880B1 (ko) 2020-10-01 2021-08-05 비디오 코딩 방법 및 장치

Country Status (6)

Country Link
US (2) US11677971B2 (https=)
EP (2) EP4042701B1 (https=)
JP (2) JP7408808B2 (https=)
KR (1) KR102898880B1 (https=)
CN (1) CN114930852B (https=)
WO (1) WO2022072062A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220035397A1 (en) * 2020-07-29 2022-02-03 Texas Instruments Incorporated Methods and Systems for Decimating Waveforms Using Second Order Derivative
US11677971B2 (en) * 2020-10-01 2023-06-13 Tencent America LLC Method and apparatus for video coding
US12418681B2 (en) * 2021-03-29 2025-09-16 Qualcomm Incorporated Context modeling for sign prediction for video coding
WO2024026332A1 (en) * 2022-07-28 2024-02-01 Apple Inc. Coefficient-based transform and mode signaling
US12368889B2 (en) 2022-07-28 2025-07-22 Apple Inc. Coefficient-based transform and mode signaling

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150103917A1 (en) 2013-10-11 2015-04-16 Blackberry Limited Sign coding for blocks with transform skipped
US20150103918A1 (en) 2013-10-11 2015-04-16 Blackberry Limited Sign coding for blocks with transform skipped
WO2018136128A1 (en) 2017-01-19 2018-07-26 Google Llc Dc coefficient sign coding scheme
WO2019185980A1 (en) 2018-03-27 2019-10-03 Nokia Technologies Oy Transform sign compression in video encoding and decoding
WO2020141855A1 (ko) 2019-01-01 2020-07-09 엘지전자 주식회사 영상 코딩 시스템에서 레지듀얼 부호 관련 정보를 사용하는 영상 디코딩 방법 및 그 장치
WO2020171592A1 (ko) * 2019-02-19 2020-08-27 엘지전자 주식회사 영상 코딩 시스템에서 레지듀얼 정보를 사용하는 영상 디코딩 방법 및 그 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013103892A1 (en) * 2012-01-05 2013-07-11 General Instrument Corporation Devices and methods for sample adaptive offset coding and/or selection of edge offset parameters
GB2570711B (en) * 2018-02-05 2023-04-05 Sony Corp Data encoding and decoding
CN113330749B (zh) * 2019-02-24 2024-05-10 腾讯美国有限责任公司 视频编解码的方法和装置
US11677971B2 (en) * 2020-10-01 2023-06-13 Tencent America LLC Method and apparatus for video coding

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150103917A1 (en) 2013-10-11 2015-04-16 Blackberry Limited Sign coding for blocks with transform skipped
US20150103918A1 (en) 2013-10-11 2015-04-16 Blackberry Limited Sign coding for blocks with transform skipped
WO2018136128A1 (en) 2017-01-19 2018-07-26 Google Llc Dc coefficient sign coding scheme
WO2019185980A1 (en) 2018-03-27 2019-10-03 Nokia Technologies Oy Transform sign compression in video encoding and decoding
WO2020141855A1 (ko) 2019-01-01 2020-07-09 엘지전자 주식회사 영상 코딩 시스템에서 레지듀얼 부호 관련 정보를 사용하는 영상 디코딩 방법 및 그 장치
WO2020171592A1 (ko) * 2019-02-19 2020-08-27 엘지전자 주식회사 영상 코딩 시스템에서 레지듀얼 정보를 사용하는 영상 디코딩 방법 및 그 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. Mrak, et al. Transform skip mode. JCT-VC of ITU-T and ISO/IEC. JCTVC-F077 Ver.3, Jul. 15, 2011, pp.1-9*

Also Published As

Publication number Publication date
JP2023504819A (ja) 2023-02-07
EP4586607A3 (en) 2025-10-01
CN114930852A (zh) 2022-08-19
JP7758275B2 (ja) 2025-10-22
EP4042701B1 (en) 2025-10-01
JP2024019644A (ja) 2024-02-09
EP4586607A2 (en) 2025-07-16
US20230232027A1 (en) 2023-07-20
US11677971B2 (en) 2023-06-13
US20220109864A1 (en) 2022-04-07
KR20220085836A (ko) 2022-06-22
US12418669B2 (en) 2025-09-16
JP7408808B2 (ja) 2024-01-05
CN114930852B (zh) 2024-09-13
WO2022072062A1 (en) 2022-04-07
EP4042701A1 (en) 2022-08-17
EP4042701A4 (en) 2022-12-14

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