AU2019394546B2 - Image coding method based on secondary transform, and device therefor - Google Patents

Image coding method based on secondary transform, and device therefor Download PDF

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AU2019394546B2
AU2019394546B2 AU2019394546A AU2019394546A AU2019394546B2 AU 2019394546 B2 AU2019394546 B2 AU 2019394546B2 AU 2019394546 A AU2019394546 A AU 2019394546A AU 2019394546 A AU2019394546 A AU 2019394546A AU 2019394546 B2 AU2019394546 B2 AU 2019394546B2
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transform
index
intra prediction
prediction mode
equal
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AU2019394546A1 (en
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Seunghwan Kim
Moonmo Koo
Jaehyun Lim
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LG Electronics Inc
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LG Electronics Inc
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Priority to AU2024203118A priority patent/AU2024203118B2/en
Priority to AU2025260011A priority patent/AU2025260011A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/12Selection 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/11Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/124Quantisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/132Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/18Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46Embedding additional information in the video signal during the compression process
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods 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

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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)
AU2019394546A 2018-12-06 2019-12-05 Image coding method based on secondary transform, and device therefor Active AU2019394546B2 (en)

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AU2022204531A AU2022204531B2 (en) 2018-12-06 2022-06-27 Image coding method based on secondary transform, and device therefor
AU2024203118A AU2024203118B2 (en) 2018-12-06 2024-05-10 Image coding method based on secondary transform, and device therefor
AU2025260011A AU2025260011A1 (en) 2018-12-06 2025-11-03 Image coding method based on secondary transform, and device therefor

Applications Claiming Priority (3)

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US201862775914P 2018-12-06 2018-12-06
US62/775,914 2018-12-06
PCT/KR2019/017104 WO2020116961A1 (ko) 2018-12-06 2019-12-05 이차 변환에 기반한 영상 코딩 방법 및 그 장치

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AU2024203118A Active AU2024203118B2 (en) 2018-12-06 2024-05-10 Image coding method based on secondary transform, and device therefor
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AU2025260011A Pending AU2025260011A1 (en) 2018-12-06 2025-11-03 Image coding method based on secondary transform, and device therefor

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US (4) US11290747B2 (https=)
JP (5) JP7200379B2 (https=)
KR (2) KR20250069985A (https=)
CN (5) CN116684642A (https=)
AU (4) AU2019394546B2 (https=)
WO (1) WO2020116961A1 (https=)

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US11290747B2 (en) 2022-03-29
US20240171776A1 (en) 2024-05-23
US11936911B2 (en) 2024-03-19
JP2023024623A (ja) 2023-02-16
WO2020116961A1 (ko) 2020-06-11
BR112021010422A2 (pt) 2021-09-28
US20250203112A1 (en) 2025-06-19
US12273563B2 (en) 2025-04-08
CN116684642A (zh) 2023-09-01
JP7787346B2 (ja) 2025-12-16
JP2022511860A (ja) 2022-02-01
JP7490037B2 (ja) 2024-05-24
CN113170197A (zh) 2021-07-23
JP2024102326A (ja) 2024-07-30
JP7200379B2 (ja) 2023-01-06
AU2024203118A1 (en) 2024-05-30
US20220191546A1 (en) 2022-06-16
JP2025090835A (ja) 2025-06-17
JP7654870B2 (ja) 2025-04-01
AU2024203118B2 (en) 2025-08-07
AU2025260011A1 (en) 2025-11-20
AU2022204531A1 (en) 2022-07-21
CN116684644A (zh) 2023-09-01
KR20250069985A (ko) 2025-05-20
AU2019394546A1 (en) 2021-06-10
KR102807906B1 (ko) 2025-05-14
JP2026026330A (ja) 2026-02-16
KR20210089171A (ko) 2021-07-15
CN116684643A (zh) 2023-09-01
AU2022204531B2 (en) 2024-02-15
CN116684641A (zh) 2023-09-01
US20210281881A1 (en) 2021-09-09
CN113170197B (zh) 2023-07-18

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