MX378073B - Codificador, método de codificación, decodificador y método de decodificación - Google Patents

Codificador, método de codificación, decodificador y método de decodificación

Info

Publication number
MX378073B
MX378073B MX2020000031A MX2020000031A MX378073B MX 378073 B MX378073 B MX 378073B MX 2020000031 A MX2020000031 A MX 2020000031A MX 2020000031 A MX2020000031 A MX 2020000031A MX 378073 B MX378073 B MX 378073B
Authority
MX
Mexico
Prior art keywords
transformation
base
decoder
encoder
coefficient
Prior art date
Application number
MX2020000031A
Other languages
English (en)
Inventor
Hideo Saitou
Kiyofumi Abe
Masato Ohkawa
Ryuichi KANOH
Tadamasa Toma
Takahiro Nishi
Original Assignee
Panasonic Ip Corp America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX378073B publication Critical patent/MX378073B/es

Links

Classifications

    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/134—Methods 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • 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
    • H04N19/42—Methods 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
    • H04N19/423—Methods 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
    • 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
    • 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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/619—Methods 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

Landscapes

  • 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)
  • Error Detection And Correction (AREA)

Abstract

Se proporciona un codificador (100) que codifica un bloque actual en una imagen que incluye circuitaje y memoria. Usando la memoria, el circuitaje: realiza una primera transformada sobre una señal residual del bloque actual usando una base de primera transformada para generar coeficientes de primera transformada; y realiza una segunda transformada sobre los coeficientes de primera transformada usando una base de segunda transformada para generar coeficientes de segunda transformada y cuantificar los coeficientes de segunda transformada, cuando la base de primera transformada es la misma que una base de transformada predeterminada; y cuantifica los coeficientes de primera transformada sin realizar la segunda transformada cuando la base de primera transformada es diferente de la base de transformada predeterminada.
MX2020000031A 2017-07-13 2018-07-11 Codificador, método de codificación, decodificador y método de decodificación MX378073B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762532050P 2017-07-13 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

Publications (1)

Publication Number Publication Date
MX378073B true MX378073B (es) 2025-03-10

Family

ID=65002115

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2020000031A MX378073B (es) 2017-07-13 2018-07-11 Codificador, método de codificación, decodificador y método de decodificación
MX2020013276A MX2020013276A (es) 2017-07-13 2020-01-08 Dispositivo de codificacion, metodo de codificacion, dispositivo de descodificacion y metodo de descodificacion.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2020013276A MX2020013276A (es) 2017-07-13 2020-01-08 Dispositivo de codificacion, metodo de codificacion, dispositivo de descodificacion y metodo de descodificacion.

Country Status (14)

Country Link
US (4) US10742977B2 (es)
EP (3) EP4373091A3 (es)
JP (5) JP6756919B2 (es)
KR (5) KR102760415B1 (es)
CN (7) CN114173123B (es)
BR (1) BR112020000219A2 (es)
CA (2) CA3069579C (es)
ES (2) ES2984938T3 (es)
HU (2) HUE067294T2 (es)
LT (2) LT3637767T (es)
MX (2) MX378073B (es)
PL (2) PL3955572T3 (es)
TW (5) TWI794129B (es)
WO (1) WO2019013235A1 (es)

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BR112020000219A2 (pt) 2020-07-07
EP3955572B1 (en) 2024-05-08
JP2026015361A (ja) 2026-01-29
CN114173121B (zh) 2023-10-27
PL3637767T3 (pl) 2022-08-22
US10742977B2 (en) 2020-08-11
KR20230108353A (ko) 2023-07-18
JP7109511B2 (ja) 2022-07-29
JP7771130B2 (ja) 2025-11-17
KR102760415B1 (ko) 2025-02-03
US11895299B2 (en) 2024-02-06
CN113115035A (zh) 2021-07-13
LT3955572T (lt) 2024-07-25
EP3637767A4 (en) 2020-06-10
PL3955572T3 (pl) 2024-09-23
CN113115035B (zh) 2023-04-28
TW202247664A (zh) 2022-12-01
JP2023107985A (ja) 2023-08-03
LT3637767T (lt) 2022-06-27
JP7299386B2 (ja) 2023-06-27
CN110892720A (zh) 2020-03-17
JP6756919B2 (ja) 2020-09-16
CN114173123B (zh) 2023-10-24
US20200322605A1 (en) 2020-10-08
US20200154105A1 (en) 2020-05-14
CA3069579C (en) 2020-08-25
TW202231067A (zh) 2022-08-01
KR102188582B1 (ko) 2020-12-08
MX2020013276A (es) 2021-02-22
EP4373091A3 (en) 2024-07-24
TW201909646A (zh) 2019-03-01
CN110892720B (zh) 2022-01-28
US20240146925A1 (en) 2024-05-02
ES2984938T3 (es) 2024-10-31
KR20220065103A (ko) 2022-05-19
JP2022137273A (ja) 2022-09-21
EP3637767B1 (en) 2022-05-04
TWI761551B (zh) 2022-04-21
CN114173122A (zh) 2022-03-11
CN114173122B (zh) 2023-10-24
CN114173123A (zh) 2022-03-11
HUE067294T2 (hu) 2024-10-28
WO2019013235A1 (ja) 2019-01-17
ES2917553T3 (es) 2022-07-08
TW202508289A (zh) 2025-02-16
KR102556279B1 (ko) 2023-07-17
CN114173124B (zh) 2023-10-27
CN114173125A (zh) 2022-03-11
KR102399384B1 (ko) 2022-05-18
JPWO2019013235A1 (ja) 2020-03-26
CA3069579A1 (en) 2019-01-17
CN114173125B (zh) 2023-10-24
US12309370B2 (en) 2025-05-20
JP2020191687A (ja) 2020-11-26
CA3086574A1 (en) 2019-01-17
EP3637767A1 (en) 2020-04-15
CN114173124A (zh) 2022-03-11
EP4373091A2 (en) 2024-05-22
TWI860614B (zh) 2024-11-01
KR20200139270A (ko) 2020-12-11
EP3955572A1 (en) 2022-02-16
TW202322631A (zh) 2023-06-01
KR20250016500A (ko) 2025-02-03
KR20200006171A (ko) 2020-01-17
CN114173121A (zh) 2022-03-11
US20250267263A1 (en) 2025-08-21
HUE059331T2 (hu) 2022-11-28
TWI794129B (zh) 2023-02-21
TWI777907B (zh) 2022-09-11

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