CL2023002827A1 - Un codificador, un decodificador, y métodos correspondientes para proceso de transformada - Google Patents

Un codificador, un decodificador, y métodos correspondientes para proceso de transformada

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Publication number
CL2023002827A1
CL2023002827A1 CL2023002827A CL2023002827A CL2023002827A1 CL 2023002827 A1 CL2023002827 A1 CL 2023002827A1 CL 2023002827 A CL2023002827 A CL 2023002827A CL 2023002827 A CL2023002827 A CL 2023002827A CL 2023002827 A1 CL2023002827 A1 CL 2023002827A1
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CL
Chile
Prior art keywords
current
block
threshold
width
equal
Prior art date
Application number
CL2023002827A
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English (en)
Inventor
Chen Jianle
Meher Kotra Anand
Esenlik Semih
Gao Han
Wang Biao
Original Assignee
Huawei Tech Co Ltd
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of CL2023002827A1 publication Critical patent/CL2023002827A1/es

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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
    • H04N19/119—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
    • 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
    • H04N19/134—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
    • H04N19/134—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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/60—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
    • H04N19/70—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

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)

Abstract

La presente divulgación proporciona métodos y dispositivos; un método de codificación implementado por un dispositivo de decodificación, comprendiendo: cuando un modo de predicción de un bloque de codificación actual es intra predicción, y el bloque de codificación actual es procesado utilizando modo de codificación de intra sub-división, determinar si una anchura de un bloque de transformada actual es más grande que o igual a un primer umbral o no, y si la anchura del bloque de transformada actual es más pequeño que o igual a un segundo umbral o no, el bloque de transformada actual es correspondido con el bloque de codificación actual; cuando la anchura del bloque de transformada actual es más grande que o igual al primer umbral y la anchura del bloque de transformada actual es más pequeño que o igual al segundo umbral, ejecutar el proceso de transformada en el bloque de transformada actual, en donde un núcleo de transformada DST 7 es utilizado en la transformada de dirección horizontal.
CL2023002827A 2019-03-03 2023-09-22 Un codificador, un decodificador, y métodos correspondientes para proceso de transformada CL2023002827A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962813136P 2019-03-03 2019-03-03
US201962815293P 2019-03-07 2019-03-07

Publications (1)

Publication Number Publication Date
CL2023002827A1 true CL2023002827A1 (es) 2024-01-26

Family

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Family Applications (2)

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CL2021002295A CL2021002295A1 (es) 2019-03-03 2021-09-02 Un codificador, un decodificador, y métodos correspondientes que son utilizados para proceso de transformada
CL2023002827A CL2023002827A1 (es) 2019-03-03 2023-09-22 Un codificador, un decodificador, y métodos correspondientes para proceso de transformada

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Country Status (11)

Country Link
US (2) US12047570B2 (es)
EP (1) EP3903498A4 (es)
JP (2) JP7106689B2 (es)
KR (3) KR102475963B1 (es)
CN (4) CN115052164A (es)
AU (2) AU2020233004B2 (es)
BR (1) BR112020024331A2 (es)
CA (1) CA3131288A1 (es)
CL (2) CL2021002295A1 (es)
MX (1) MX2020014019A (es)
WO (1) WO2020177509A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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CN116112689A (zh) * 2021-11-11 2023-05-12 杭州海康威视数字技术股份有限公司 视频编解码方法及装置

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Also Published As

Publication number Publication date
CA3131288A1 (en) 2020-09-10
CN115052163B (zh) 2024-04-09
AU2024201346A1 (en) 2024-03-21
KR20220162882A (ko) 2022-12-08
KR102657540B1 (ko) 2024-04-12
JP7106689B2 (ja) 2022-07-26
JP2021531680A (ja) 2021-11-18
JP7507813B2 (ja) 2024-06-28
EP3903498A1 (en) 2021-11-03
AU2020233004B2 (en) 2023-11-30
BR112020024331A2 (pt) 2021-02-23
US20230254485A1 (en) 2023-08-10
CN112740703A (zh) 2021-04-30
CN112740703B (zh) 2022-05-24
US20210144373A1 (en) 2021-05-13
KR20210008080A (ko) 2021-01-20
WO2020177509A1 (en) 2020-09-10
KR20240052873A (ko) 2024-04-23
CN115052163A (zh) 2022-09-13
AU2020233004A1 (en) 2021-09-09
KR102475963B1 (ko) 2022-12-08
CN113727120B (zh) 2022-09-23
JP2022136124A (ja) 2022-09-15
CL2021002295A1 (es) 2022-04-01
CN113727120A (zh) 2021-11-30
EP3903498A4 (en) 2022-07-06
CN115052164A (zh) 2022-09-13
US12047570B2 (en) 2024-07-23
MX2020014019A (es) 2021-03-25

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