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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Prior art keywords
transform
chroma
lfnst
luma
coding unit
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AU2019275552A
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AU2019275552A1 (en
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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 PCT/AU2020/051200 priority patent/WO2021108833A1/en
Priority to CN202410614566.7A priority patent/CN118573883A/zh
Priority to CN202410614560.XA priority patent/CN118573882A/zh
Priority to JP2022508945A priority patent/JP2023504333A/ja
Priority to CN202080077050.3A priority patent/CN114667731A/zh
Priority to CN202410614571.8A priority patent/CN118573884A/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
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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 (11)

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
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
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
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
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
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
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

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

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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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AU2012232992A1 (en) * 2012-09-28 2014-04-17 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding the transform units of a coding unit
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
CN109076243B (zh) * 2016-05-04 2022-01-25 夏普株式会社 用于对变换数据进行编码的系统和方法
KR102397673B1 (ko) * 2016-05-13 2022-05-16 소니그룹주식회사 화상 처리 장치 및 방법
CA3288654A1 (en) * 2017-01-03 2025-11-29 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Image processing method and apparatus therefor
CN120455656A (zh) * 2017-12-07 2025-08-08 韩国电子通信研究院 用于使用通道之间的选择性信息共享进行编码和解码的方法和设备
US11310517B2 (en) * 2017-12-07 2022-04-19 Electronics And Telecommunications Research Institute Method and apparatus for encoding and decoding using selective information sharing between channels
CN111543058B (zh) * 2017-12-15 2023-09-01 Lg电子株式会社 基于不可分离二次变换的图像编码方法和用于其的装置
US11039139B2 (en) * 2018-09-14 2021-06-15 Tencent America LLC Method and apparatus for identity transform in multiple transform selection
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
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Publication number Publication date
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
JP2023504333A (ja) 2023-02-03
WO2021108833A1 (en) 2021-06-10
AU2022228215B2 (en) 2024-08-15
CN118573884A (zh) 2024-08-30
TW202123708A (zh) 2021-06-16

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