MX2020006314A - Metodo de codificacion de imagenes basado en transformacion y dispositivo para el mismo. - Google Patents

Metodo de codificacion de imagenes basado en transformacion y dispositivo para el mismo.

Info

Publication number
MX2020006314A
MX2020006314A MX2020006314A MX2020006314A MX2020006314A MX 2020006314 A MX2020006314 A MX 2020006314A MX 2020006314 A MX2020006314 A MX 2020006314A MX 2020006314 A MX2020006314 A MX 2020006314A MX 2020006314 A MX2020006314 A MX 2020006314A
Authority
MX
Mexico
Prior art keywords
respect
basis
target block
transform coefficients
deriving
Prior art date
Application number
MX2020006314A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Seunghwan Kim
Mehdi Salehifar
Original Assignee
Lg Electronics Inc
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Publication date
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2020006314A publication Critical patent/MX2020006314A/es

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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
    • H04N19/10—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/102—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
    • H04N19/102—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/60—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
    • H04N19/70—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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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)
  • Apparatus For Radiation Diagnosis (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Un método de decodificación de imágenes realizado por medio de un dispositivo de decodificación de conformidad con la presente invención comprende los pasos de: derivar coeficientes de transformación cuantificados con respecto a un bloque objetivo a partir de un flujo de bits; realizar una cuantificación inversa con respecto a los coeficientes de transformación cuantificados con respecto al bloque objetivo y derivar coeficientes de transformación; derivar muestras residuales con respecto al bloque objetivo con base en una transformación inversa reducida con respecto a los coeficientes de transformación; y generar una imagen reconstruida sobre la base de las muestras residuales con respecto al bloque objetivo y las muestras de predicción con respecto al bloque objetivo. La transformación inversa reducida se realiza con base en una matriz de transformación inversa reducida. La matriz de transformación inversa reducida es una matriz no cuadrada cuyo número de columnas es menor que el número de filas.
MX2020006314A 2017-12-15 2018-12-13 Metodo de codificacion de imagenes basado en transformacion y dispositivo para el mismo. MX2020006314A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762599020P 2017-12-15 2017-12-15
PCT/KR2018/015815 WO2019117639A1 (ko) 2017-12-15 2018-12-13 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2020006314A true MX2020006314A (es) 2020-09-18

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MX2020006314A MX2020006314A (es) 2017-12-15 2018-12-13 Metodo de codificacion de imagenes basado en transformacion y dispositivo para el mismo.
MX2024000126A MX2024000126A (es) 2017-12-15 2020-07-13 Metodo de codificacion de imagenes basado en transformacion y dispositivo para el mismo.

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Country Status (10)

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US (4) US11218731B2 (es)
EP (2) EP3716630A4 (es)
JP (3) JP7009632B2 (es)
KR (3) KR20230008911A (es)
CN (5) CN111684809B (es)
BR (1) BR112020012033A2 (es)
CA (2) CA3088026C (es)
MX (2) MX2020006314A (es)
RU (2) RU2762873C2 (es)
WO (1) WO2019117639A1 (es)

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RU2745254C1 (ru) 2021-03-22
BR112020012033A2 (pt) 2020-11-24
CN115297326B (zh) 2024-06-07
CN115297326A (zh) 2022-11-04
JP7009632B2 (ja) 2022-01-25
RU2762873C2 (ru) 2021-12-23
US11601679B2 (en) 2023-03-07
RU2021106917A (ru) 2021-04-12
KR102485470B1 (ko) 2023-01-05
CA3088026C (en) 2023-10-03
US11895334B2 (en) 2024-02-06
EP4376412A2 (en) 2024-05-29
JP7422913B2 (ja) 2024-01-26
CN115278240B (zh) 2024-06-07
CN115278233B (zh) 2024-06-04
JP2024026776A (ja) 2024-02-28
US20230156223A1 (en) 2023-05-18
EP3716630A1 (en) 2020-09-30
CN115278233A (zh) 2022-11-01
KR20210128036A (ko) 2021-10-25
CA3088026A1 (en) 2019-06-20
CN111684809B (zh) 2022-08-19
CN115278234A (zh) 2022-11-01
WO2019117639A1 (ko) 2019-06-20
JP2021507596A (ja) 2021-02-22
EP3716630A4 (en) 2021-01-27
JP7240476B2 (ja) 2023-03-15
RU2021106917A3 (es) 2021-05-25
MX2024000126A (es) 2024-01-22
CA3210247A1 (en) 2019-06-20
EP4376412A3 (en) 2024-07-17
US20200366935A1 (en) 2020-11-19
KR102315455B1 (ko) 2021-10-20
US11218731B2 (en) 2022-01-04
KR20230008911A (ko) 2023-01-16
KR20200078659A (ko) 2020-07-01
JP2022036083A (ja) 2022-03-04
CN115278240A (zh) 2022-11-01
US20220046282A1 (en) 2022-02-10
JP2023065606A (ja) 2023-05-12
US20240146965A1 (en) 2024-05-02
CN111684809A (zh) 2020-09-18

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