JP2023504333A - 符号化ツリーユニットを符号化および復号化するための方法、装置およびシステム - Google Patents

符号化ツリーユニットを符号化および復号化するための方法、装置およびシステム Download PDF

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JP2023504333A
JP2023504333A JP2022508945A JP2022508945A JP2023504333A JP 2023504333 A JP2023504333 A JP 2023504333A JP 2022508945 A JP2022508945 A JP 2022508945A JP 2022508945 A JP2022508945 A JP 2022508945A JP 2023504333 A JP2023504333 A JP 2023504333A
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transform
chroma
luma
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クリストファー ジェームズ ロゼワーン，
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Canon Inc
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Canon Inc
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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
    • H04N19/70—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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/10—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
    • H04N19/129—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
    • H04N19/169—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
    • H04N19/46—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
    • H04N19/60—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
    • H04N19/90—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
    • H04N19/18—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

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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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP2022508945A 2019-12-03 2020-11-04 符号化ツリーユニットを符号化および復号化するための方法、装置およびシステム Pending JP2023504333A (ja)

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AU2019275552A AU2019275552B2 (en) 2019-12-03 2019-12-03 Method, apparatus and system for encoding and decoding a coding tree unit
AU2019275552 2019-12-03
PCT/AU2020/051200 WO2021108833A1 (en) 2019-12-03 2020-11-04 Method, apparatus and system for encoding and decoding a coding tree unit

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JP2024023035A Active JP7755673B2 (ja) 2019-12-03 2024-02-19 符号化ユニットを復号および符号化する方法、装置およびプログラム

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US (1) US20220394311A1 (enExample)
JP (2) JP2023504333A (enExample)
CN (4) CN118573883A (enExample)
AU (2) AU2019275552B2 (enExample)
TW (1) TWI784345B (enExample)
WO (1) WO2021108833A1 (enExample)

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CN114946189B (zh) * 2019-11-13 2025-01-14 Lg电子株式会社 基于变换的图像编码方法及其装置
AU2019275553B2 (en) * 2019-12-03 2022-10-06 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit
CN114762327B (zh) * 2019-12-12 2025-06-17 索尼集团公司 图像处理装置和方法
JP7499665B2 (ja) 2020-09-29 2024-06-14 Kddi株式会社 点群復号装置、点群復号方法及びプログラム
US12316866B2 (en) * 2021-06-17 2025-05-27 Tencent America LLC Skip transform flag coding
CN116458159A (zh) * 2021-06-17 2023-07-18 腾讯美国有限责任公司 跳过变换标志编码

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US20190306521A1 (en) * 2018-03-29 2019-10-03 Tencent America LLC Transform information prediction
WO2021096290A1 (ko) * 2019-11-13 2021-05-20 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
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US10708164B2 (en) * 2016-05-03 2020-07-07 Qualcomm Incorporated Binarizing secondary transform index
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US20190306521A1 (en) * 2018-03-29 2019-10-03 Tencent America LLC Transform information prediction
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CN118573883A (zh) 2024-08-30
JP2024056945A (ja) 2024-04-23
AU2019275552A1 (en) 2021-06-17
US20220394311A1 (en) 2022-12-08
AU2022228215A1 (en) 2022-10-06
CN118573882A (zh) 2024-08-30
TWI784345B (zh) 2022-11-21
CN114667731A (zh) 2022-06-24
JP7755673B2 (ja) 2025-10-16
AU2019275552B2 (en) 2022-10-13
WO2021108833A1 (en) 2021-06-10
AU2022228215B2 (en) 2024-08-15
CN118573884A (zh) 2024-08-30
TW202123708A (zh) 2021-06-16

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