CA3069579C - Encoder, encoding method, decoder, and decoding method - Google Patents

Encoder, encoding method, decoder, and decoding method Download PDF

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Publication number
CA3069579C
CA3069579C CA3069579A CA3069579A CA3069579C CA 3069579 C CA3069579 C CA 3069579C CA 3069579 A CA3069579 A CA 3069579A CA 3069579 A CA3069579 A CA 3069579A CA 3069579 C CA3069579 C CA 3069579C
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Prior art keywords
transform
basis
inverse
current block
block
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CA3069579A
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English (en)
French (fr)
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CA3069579A1 (en
Inventor
Masato Ohkawa
Hideo Saitou
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
Ryuichi Kanoh
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Panasonic Intellectual Property Corp of America
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Panasonic Intellectual Property Corp of America
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Priority to CA3086574A priority Critical patent/CA3086574A1/en
Publication of CA3069579A1 publication Critical patent/CA3069579A1/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
    • 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
    • H04N19/124Quantisation
    • 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
    • H04N19/134Methods 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
    • 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
    • H04N19/42Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/625Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/619Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding the transform being operated outside the prediction loop

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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)
  • Error Detection And Correction (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
CA3069579A 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method Active CA3069579C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3086574A CA3086574A1 (en) 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762532050P 2017-07-13 2017-07-13
US62/532,050 2017-07-13
PCT/JP2018/026113 WO2019013235A1 (ja) 2017-07-13 2018-07-11 符号化装置、符号化方法、復号装置及び復号方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA3086574A Division CA3086574A1 (en) 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method

Publications (2)

Publication Number Publication Date
CA3069579A1 CA3069579A1 (en) 2019-01-17
CA3069579C true CA3069579C (en) 2020-08-25

Family

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CA3069579A Active CA3069579C (en) 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method
CA3086574A Pending CA3086574A1 (en) 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method

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CA3086574A Pending CA3086574A1 (en) 2017-07-13 2018-07-11 Encoder, encoding method, decoder, and decoding method

Country Status (14)

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US (4) US10742977B2 (enExample)
EP (3) EP3637767B1 (enExample)
JP (4) JP6756919B2 (enExample)
KR (5) KR102760415B1 (enExample)
CN (7) CN113115035B (enExample)
BR (1) BR112020000219A2 (enExample)
CA (2) CA3069579C (enExample)
ES (2) ES2917553T3 (enExample)
HU (2) HUE067294T2 (enExample)
LT (2) LT3637767T (enExample)
MX (2) MX378073B (enExample)
PL (2) PL3637767T3 (enExample)
TW (5) TWI777907B (enExample)
WO (1) WO2019013235A1 (enExample)

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KR102825862B1 (ko) 2018-09-05 2025-06-26 엘지전자 주식회사 영상 신호를 처리하기 위한 방법 및 장치
WO2020185429A1 (en) * 2019-03-11 2020-09-17 Alibaba Group Holding Limited Method, device, and system for determining prediction weight for merge mode
CA3135146A1 (en) * 2019-04-16 2020-10-22 Panasonic Intellectual Property Corporation Of America Encoder, decoder, encoding method, and decoding method
CN119402670A (zh) * 2019-04-24 2025-02-07 松下电器(美国)知识产权公司 编码装置、解码装置和非暂时性的计算机可读介质
CN117714688A (zh) * 2019-06-14 2024-03-15 松下电器(美国)知识产权公司 编码装置、解码装置和非暂时性的计算机可读取介质
US20230142928A1 (en) * 2020-04-02 2023-05-11 Lg Electronics Inc. Transform-based image coding method and device therefor
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WO2025150799A1 (ko) * 2024-01-08 2025-07-17 주식회사 엘엑스 세미콘 변환 기반 영상 코딩 방법 및 그 장치

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JP7771130B2 (ja) 2025-11-17
HUE059331T2 (hu) 2022-11-28
EP4373091A2 (en) 2024-05-22
CN114173122A (zh) 2022-03-11
CN114173123A (zh) 2022-03-11
JP7299386B2 (ja) 2023-06-27
CA3086574A1 (en) 2019-01-17
BR112020000219A2 (pt) 2020-07-07
JP6756919B2 (ja) 2020-09-16
MX378073B (es) 2025-03-10
CN114173124B (zh) 2023-10-27
CN114173125A (zh) 2022-03-11
CN110892720A (zh) 2020-03-17
US20250267263A1 (en) 2025-08-21
CN114173123B (zh) 2023-10-24
US20240146925A1 (en) 2024-05-02
KR102188582B1 (ko) 2020-12-08
MX2020013276A (es) 2021-02-22
US12309370B2 (en) 2025-05-20
JP7109511B2 (ja) 2022-07-29
EP4373091A3 (en) 2024-07-24
TWI761551B (zh) 2022-04-21
EP3637767A1 (en) 2020-04-15
EP3637767B1 (en) 2022-05-04
JP2023107985A (ja) 2023-08-03
EP3637767A4 (en) 2020-06-10
HUE067294T2 (hu) 2024-10-28
KR20250016500A (ko) 2025-02-03
JP2020191687A (ja) 2020-11-26
PL3955572T3 (pl) 2024-09-23
EP3955572B1 (en) 2024-05-08
CN114173121B (zh) 2023-10-27
CN114173121A (zh) 2022-03-11
LT3637767T (lt) 2022-06-27
WO2019013235A1 (ja) 2019-01-17
CN114173125B (zh) 2023-10-24
TWI860614B (zh) 2024-11-01
JP2022137273A (ja) 2022-09-21
PL3637767T3 (pl) 2022-08-22
EP3955572A1 (en) 2022-02-16
TW202247664A (zh) 2022-12-01
TW202231067A (zh) 2022-08-01
KR20200139270A (ko) 2020-12-11
US20200322605A1 (en) 2020-10-08
KR102399384B1 (ko) 2022-05-18
CA3069579A1 (en) 2019-01-17
KR20220065103A (ko) 2022-05-19
TWI777907B (zh) 2022-09-11
TW202322631A (zh) 2023-06-01
ES2984938T3 (es) 2024-10-31
CN110892720B (zh) 2022-01-28
TW202508289A (zh) 2025-02-16
CN114173124A (zh) 2022-03-11
TWI794129B (zh) 2023-02-21
KR102760415B1 (ko) 2025-02-03
KR20230108353A (ko) 2023-07-18
US20200154105A1 (en) 2020-05-14
KR102556279B1 (ko) 2023-07-17
CN113115035B (zh) 2023-04-28
CN114173122B (zh) 2023-10-24
US10742977B2 (en) 2020-08-11
CN113115035A (zh) 2021-07-13
TW201909646A (zh) 2019-03-01
JPWO2019013235A1 (ja) 2020-03-26
ES2917553T3 (es) 2022-07-08
KR20200006171A (ko) 2020-01-17
LT3955572T (lt) 2024-07-25
US11895299B2 (en) 2024-02-06

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