MX2017009750A - Metodo y aparato de codificacion y decodificacion de una imagen en color. - Google Patents

Metodo y aparato de codificacion y decodificacion de una imagen en color.

Info

Publication number
MX2017009750A
MX2017009750A MX2017009750A MX2017009750A MX2017009750A MX 2017009750 A MX2017009750 A MX 2017009750A MX 2017009750 A MX2017009750 A MX 2017009750A MX 2017009750 A MX2017009750 A MX 2017009750A MX 2017009750 A MX2017009750 A MX 2017009750A
Authority
MX
Mexico
Prior art keywords
luminance
obtaining
color
component
color picture
Prior art date
Application number
MX2017009750A
Other languages
English (en)
Inventor
Bordes Philippe
Lasserre Sebastien
LELEANNEC Fabrice
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 MX2017009750A publication Critical patent/MX2017009750A/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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/36—Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation

Landscapes

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

Abstract

La presente descripción se relaciona generalmente con un método y dispositivo de codificación de una imagen en color que tiene componentes de color (Ec), caracterizado por que comprende: - obtener (130) un componente de luminancia (L) que comprende: - obtener (120) un valor de modulación (Ba) de la luminancia (Y) de la imagen en color; - obtener una luminancia escalada dividiendo la luminancia (Y) de la imagen en color por el valor de modulación (Ba); - obtener el componente de luminancia (L) aplicando una función no lineal sobre la luminancia escalada de modo que la dinámica del componente de luminancia (L) se reduzca en comparación con la dinámica de la luminancia escalada ; - la obtención de los dos componentes de crominancia (C1, C2) que comprende: - obtener un factor (r(L(i)) que depende del valor del pixel (i) del componente de luminancia (L(i)) y el valor de luminancia (Y(i)) del pixel (i) colocalizado in la imagen en color; - obtener (150) al menos un componente de color intermedio (E'c) multiplicando cada componente de color (Ec) por el factor (r(L(i)); y - obtener (170) los dos componentes de crominancia (C1, C2) de al menos un componente de color intermedio (E´c); y - codificar (180) la luminancia (L) y dos componentes de crominancia (C1, C2).
MX2017009750A 2015-01-30 2016-01-25 Metodo y aparato de codificacion y decodificacion de una imagen en color. MX2017009750A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15305119.8A EP3051825A1 (en) 2015-01-30 2015-01-30 A method and apparatus of encoding and decoding a color picture
PCT/EP2016/051448 WO2016120208A1 (en) 2015-01-30 2016-01-25 A method and apparatus of encoding and decoding a color picture

Publications (1)

Publication Number Publication Date
MX2017009750A true MX2017009750A (es) 2017-10-27

Family

ID=52473835

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017009750A MX2017009750A (es) 2015-01-30 2016-01-25 Metodo y aparato de codificacion y decodificacion de una imagen en color.

Country Status (11)

Country Link
US (1) US20180014024A1 (es)
EP (2) EP3051825A1 (es)
JP (1) JP2018507618A (es)
KR (1) KR20170110088A (es)
CN (1) CN107211129A (es)
AU (1) AU2016212242A1 (es)
BR (1) BR112017015593A2 (es)
CA (1) CA2973637A1 (es)
MX (1) MX2017009750A (es)
RU (1) RU2705013C2 (es)
WO (1) WO2016120208A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109845262B (zh) 2016-05-04 2023-10-13 交互数字Vc控股公司 用于将高动态范围画面编码/解码为编码比特流的方法和装置
CN113728624B (zh) * 2019-04-23 2023-11-14 杜比实验室特许公司 高动态范围图像的显示管理

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8014445B2 (en) * 2006-02-24 2011-09-06 Sharp Laboratories Of America, Inc. Methods and systems for high dynamic range video coding
JP5436584B2 (ja) * 2009-03-10 2014-03-05 ドルビー ラボラトリーズ ライセンシング コーポレイション 拡張ダイナミックレンジおよび拡張次元をもつ画像信号変換
BRPI1009443B1 (pt) * 2009-03-13 2021-08-24 Dolby Laboratories Licensing Corporation Método de geração de parâmetros de mapeamento de tons inverso, método de compactação de dados de vídeo e método para geração de um fluxo de bits de saída a partir de um fluxo de bits de entrada
US8483479B2 (en) * 2009-05-11 2013-07-09 Dolby Laboratories Licensing Corporation Light detection, color appearance models, and modifying dynamic range for image display
JP5569042B2 (ja) * 2010-03-02 2014-08-13 株式会社リコー 画像処理装置、撮像装置及び画像処理方法
EP2745290A1 (en) * 2011-09-27 2014-06-25 Koninklijke Philips N.V. Apparatus and method for dynamic range transforming of images

Also Published As

Publication number Publication date
WO2016120208A1 (en) 2016-08-04
EP3251369A1 (en) 2017-12-06
CA2973637A1 (en) 2016-08-04
RU2017127151A3 (es) 2019-06-25
CN107211129A (zh) 2017-09-26
BR112017015593A2 (pt) 2018-03-13
KR20170110088A (ko) 2017-10-10
AU2016212242A1 (en) 2017-08-03
US20180014024A1 (en) 2018-01-11
RU2017127151A (ru) 2019-02-28
JP2018507618A (ja) 2018-03-15
RU2705013C2 (ru) 2019-11-01
EP3051825A1 (en) 2016-08-03

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