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MX2017009749A - Metodo y dispositivo para decodificar una imagen en color. - Google Patents

Metodo y dispositivo para decodificar una imagen en color.

Info

Publication number
MX2017009749A
MX2017009749A MX2017009749A MX2017009749A MX2017009749A MX 2017009749 A MX2017009749 A MX 2017009749A MX 2017009749 A MX2017009749 A MX 2017009749A MX 2017009749 A MX2017009749 A MX 2017009749A MX 2017009749 A MX2017009749 A MX 2017009749A
Authority
MX
Mexico
Prior art keywords
component
color
chrominance components
bit stream
multiplication factor
Prior art date
Application number
MX2017009749A
Other languages
English (en)
Inventor
LELEANNEC Fabrice
Olivier Yannick
Lasserre Sebastien
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of MX2017009749A publication Critical patent/MX2017009749A/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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)
  • Color Television Systems (AREA)

Abstract

Un método de decodificación de una imagen en color de un flujo de bits, caracterizado porque comprende: - obtener (330) un componente de luminancia final (L) combinando linealmente un componente de luminancia (L´) y crominancia (U´, V´) obtenidos de un flujo de bits; - obtener (310) un primer componente (Y) aplicando una función de expansión dinámica no lineal sobre el componente de luminancia final (L) para que la dinámica del primer componente (Y) se incremente en comparación con la dinámica del componente de luminancia final (L); - obtener (330) un factor de multiplicación normalizado ß´y dividiendo un factor de multiplicación (ß´) obtenido del flujo de bits por la raíz cuadrada del primer componente; - recuperar (320) al menos un componente de color (RGBHDR) de la imagen en color que será decodificada de los componentes de crominancia (U´,V´) y el primer componente (Y): - obteniendo componentes de crominancia intermedios (Ur, Vr) multiplicando los componentes de crominancia (U´,V´) por el factor de multiplicación normalizado (ß´y); - obtener al menos un componente de color intermedio(R#,G#,B#) de los cuadrados de los dos componentes de crominancia intermedios (Ur, Vr), el producto de los dos componentes de crominancia intermedios (Ur, Vr,), una matriz de transformación de color (C); y calculando al menos un componente de color (RGBHDR) de la imagen en color decodificada cuadrando el producto de la raíz cuadrada del primer componente (Y) por uno de al menos un componente de color intermedio (R#G#,B#).
MX2017009749A 2015-01-30 2016-01-27 Metodo y dispositivo para decodificar una imagen en color. MX2017009749A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15305147.9A EP3051818A1 (en) 2015-01-30 2015-01-30 Method and device for decoding a color picture
PCT/EP2016/051706 WO2016120330A1 (en) 2015-01-30 2016-01-27 Method and device for decoding a color picture

Publications (1)

Publication Number Publication Date
MX2017009749A true MX2017009749A (es) 2017-10-27

Family

ID=52596883

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017009749A MX2017009749A (es) 2015-01-30 2016-01-27 Metodo y dispositivo para decodificar una imagen en color.

Country Status (12)

Country Link
US (3) US10455245B2 (es)
EP (3) EP3051818A1 (es)
JP (1) JP6773659B2 (es)
KR (3) KR102523233B1 (es)
CN (1) CN107211142B (es)
BR (1) BR112017015907B1 (es)
CA (1) CA2975180C (es)
MX (1) MX2017009749A (es)
MY (1) MY181616A (es)
RU (1) RU2710873C2 (es)
TW (1) TWI707578B (es)
WO (1) WO2016120330A1 (es)

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Also Published As

Publication number Publication date
TW201628409A (zh) 2016-08-01
KR20230051637A (ko) 2023-04-18
JP2018507620A (ja) 2018-03-15
BR112017015907A2 (pt) 2018-03-27
RU2710873C2 (ru) 2020-01-14
US20200053373A1 (en) 2020-02-13
CN107211142A (zh) 2017-09-26
KR20170115500A (ko) 2017-10-17
MY181616A (en) 2020-12-29
CA2975180C (en) 2023-09-19
US11647213B2 (en) 2023-05-09
BR112017015907B1 (pt) 2023-12-26
KR20250131837A (ko) 2025-09-03
US20220210457A1 (en) 2022-06-30
KR102523233B1 (ko) 2023-04-18
RU2017127149A3 (es) 2019-07-24
CA2975180A1 (en) 2016-08-04
US20180027252A1 (en) 2018-01-25
CN107211142B (zh) 2020-10-02
EP3251357A1 (en) 2017-12-06
TWI707578B (zh) 2020-10-11
WO2016120330A1 (en) 2016-08-04
EP3923580A1 (en) 2021-12-15
EP3051818A1 (en) 2016-08-03
KR102850307B1 (ko) 2025-08-25
JP6773659B2 (ja) 2020-10-21
US11317108B2 (en) 2022-04-26
US10455245B2 (en) 2019-10-22
RU2017127149A (ru) 2019-02-28

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