AU2019275552B2 - Method, apparatus and system for encoding and decoding a coding tree unit - Google Patents

Method, apparatus and system for encoding and decoding a coding tree unit Download PDF

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Publication number
AU2019275552B2
AU2019275552B2 AU2019275552A AU2019275552A AU2019275552B2 AU 2019275552 B2 AU2019275552 B2 AU 2019275552B2 AU 2019275552 A AU2019275552 A AU 2019275552A AU 2019275552 A AU2019275552 A AU 2019275552A AU 2019275552 B2 AU2019275552 B2 AU 2019275552B2
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Australia
Prior art keywords
transform
chroma
lfnst
luma
coding unit
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AU2019275552A
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AU2019275552A1 (en
Inventor
Christopher James ROSEWARNE
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Canon Inc
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Canon Inc
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Priority to AU2019275552A priority Critical patent/AU2019275552B2/en
Application filed by Canon Inc filed Critical Canon Inc
Priority to CN202410614571.8A priority patent/CN118573884A/zh
Priority to PCT/AU2020/051200 priority patent/WO2021108833A1/en
Priority to CN202080077050.3A priority patent/CN114667731A/zh
Priority to JP2022508945A priority patent/JP2023504333A/ja
Priority to CN202410614566.7A priority patent/CN118573883A/zh
Priority to CN202410614560.XA priority patent/CN118573882A/zh
Priority to US17/771,423 priority patent/US20220394311A1/en
Priority to TW109139290A priority patent/TWI784345B/zh
Publication of AU2019275552A1 publication Critical patent/AU2019275552A1/en
Priority to AU2022228215A priority patent/AU2022228215B2/en
Application granted granted Critical
Publication of AU2019275552B2 publication Critical patent/AU2019275552B2/en
Priority to JP2024023035A priority patent/JP7755673B2/ja
Priority to JP2025156276A priority patent/JP2025186431A/ja
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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
    • H04N19/90—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
    • H04N19/102—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
    • H04N19/186—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
    • H04N19/169—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
    • H04N19/70—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
    • H04N19/18—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)
AU2019275552A 2019-12-03 2019-12-03 Method, apparatus and system for encoding and decoding a coding tree unit Active AU2019275552B2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
AU2019275552A AU2019275552B2 (en) 2019-12-03 2019-12-03 Method, apparatus and system for encoding and decoding a coding tree unit
US17/771,423 US20220394311A1 (en) 2019-12-03 2020-11-04 Method apparatus and system for encoding and decoding a coding tree unit
CN202080077050.3A CN114667731A (zh) 2019-12-03 2020-11-04 对编码树单元进行编码和解码的方法、设备和系统
JP2022508945A JP2023504333A (ja) 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
CN202410614566.7A CN118573883A (zh) 2019-12-03 2020-11-04 对编码单元进行编码和解码的方法、设备和存储介质
CN202410614560.XA CN118573882A (zh) 2019-12-03 2020-11-04 对编码单元进行编码和解码的方法、设备和存储介质
CN202410614571.8A CN118573884A (zh) 2019-12-03 2020-11-04 对编码单元进行编码和解码的方法、设备和存储介质
PCT/AU2020/051200 WO2021108833A1 (en) 2019-12-03 2020-11-04 Method, apparatus and system for encoding and decoding a coding tree unit
TW109139290A TWI784345B (zh) 2019-12-03 2020-11-11 用於將編碼樹單元編碼與解碼的方法、設備及系統
AU2022228215A AU2022228215B2 (en) 2019-12-03 2022-09-09 Method, apparatus and system for encoding and decoding a coding tree unit
JP2024023035A 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
JP2025156276A JP2025186431A (ja) 2019-12-03 2025-09-19 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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2019275552A AU2019275552B2 (en) 2019-12-03 2019-12-03 Method, apparatus and system for encoding and decoding a coding tree unit

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AU2022228215A Division AU2022228215B2 (en) 2019-12-03 2022-09-09 Method, apparatus and system for encoding and decoding a coding tree unit

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AU2019275552A1 AU2019275552A1 (en) 2021-06-17
AU2019275552B2 true AU2019275552B2 (en) 2022-10-13

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AU2022228215A Active AU2022228215B2 (en) 2019-12-03 2022-09-09 Method, apparatus and system for encoding and decoding a coding tree unit

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US (1) US20220394311A1 (https=)
JP (3) JP2023504333A (https=)
CN (4) CN118573883A (https=)
AU (2) AU2019275552B2 (https=)
TW (1) TWI784345B (https=)
WO (1) WO2021108833A1 (https=)

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JP7461473B2 (ja) * 2019-11-13 2024-04-03 エルジー エレクトロニクス インコーポレイティド 変換に基づく映像エンコード方法およびその装置
AU2019275553B2 (en) * 2019-12-03 2022-10-06 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit
WO2021117866A1 (ja) * 2019-12-12 2021-06-17 ソニーグループ株式会社 画像処理装置および方法
JP7499666B2 (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
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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JP6270861B2 (ja) * 2012-11-08 2018-01-31 キヤノン株式会社 符号化単位の変換単位を符号化および復号するための方法、装置およびシステム
US10708164B2 (en) * 2016-05-03 2020-07-07 Qualcomm Incorporated Binarizing secondary transform index
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CN110402580A (zh) * 2017-01-03 2019-11-01 Lg 电子株式会社 图像处理方法及其装置
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KR20190067732A (ko) * 2017-12-07 2019-06-17 한국전자통신연구원 채널들 간의 선택적인 정보 공유를 사용하는 부호화 및 복호화를 위한 방법 및 장치
KR20250107949A (ko) * 2017-12-15 2025-07-14 엘지전자 주식회사 비분리 2차 변환에 기반한 영상 코딩 방법 및 그 장치
US11039139B2 (en) * 2018-09-14 2021-06-15 Tencent America LLC Method and apparatus for identity transform in multiple transform selection
JP7461473B2 (ja) * 2019-11-13 2024-04-03 エルジー エレクトロニクス インコーポレイティド 変換に基づく映像エンコード方法およびその装置
CN114731443A (zh) * 2019-11-22 2022-07-08 索尼集团公司 图像处理装置和方法

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Also Published As

Publication number Publication date
WO2021108833A1 (en) 2021-06-10
JP7755673B2 (ja) 2025-10-16
JP2024056945A (ja) 2024-04-23
CN114667731A (zh) 2022-06-24
TW202123708A (zh) 2021-06-16
AU2019275552A1 (en) 2021-06-17
CN118573884A (zh) 2024-08-30
US20220394311A1 (en) 2022-12-08
JP2023504333A (ja) 2023-02-03
AU2022228215A1 (en) 2022-10-06
JP2025186431A (ja) 2025-12-23
CN118573882A (zh) 2024-08-30
TWI784345B (zh) 2022-11-21
AU2022228215B2 (en) 2024-08-15
CN118573883A (zh) 2024-08-30

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