BR112015020009A2 - gerenciamento de exibição para vídeo de alta gama dinâmica - Google Patents

gerenciamento de exibição para vídeo de alta gama dinâmica

Info

Publication number
BR112015020009A2
BR112015020009A2 BR112015020009A BR112015020009A BR112015020009A2 BR 112015020009 A2 BR112015020009 A2 BR 112015020009A2 BR 112015020009 A BR112015020009 A BR 112015020009A BR 112015020009 A BR112015020009 A BR 112015020009A BR 112015020009 A2 BR112015020009 A2 BR 112015020009A2
Authority
BR
Brazil
Prior art keywords
dynamic range
image
display management
tone
high dynamic
Prior art date
Application number
BR112015020009A
Other languages
English (en)
Other versions
BR112015020009B1 (pt
Inventor
atkins Robin
Chen Tao
Beier Thaddeus
Kunkel Timo
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of BR112015020009A2 publication Critical patent/BR112015020009A2/pt
Publication of BR112015020009B1 publication Critical patent/BR112015020009B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/67—Circuits for processing colour signals for matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20016—Hierarchical, coarse-to-fine, multiscale or multiresolution image processing; Pyramid transform
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Hardware Design (AREA)
  • Image Processing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)

Abstract

resumo patente de invenção: "gerenciamento de exibição para vídeo de alta gama dinâmica". a presente invenção refere-se a um processador de gerenciamento de exibição, que recebe uma imagem com gama dinâmica otimizada, que vai ser exibida em um monitor-alvo, que tem uma gama dinâmica diferente de um monitor de referência. a imagem de entrada é primeiro transformada em um espaço colorido ipt corrigido perceptivamente. uma função de mapeamento não linear gera um primeiro sinal mapeado por tom por mapeamento da intensidade do sinal de entrada da gama dinâmica de referência na gama dinâmica desejada. o componente de intensidade (i) do primeiro sinal mapeado é aparada para manter os detalhes, e a saturação dos componentes coloridos (p e t) é ajustada para gerar uma segunda imagem de saída mapeada por tom. uma função de mapeamento de escala de cores é aplicada à segunda imagem de saída mapeada por tom, para gerar uma imagem adequada para exibição no monitor-alvo. o encadeamento de gerenciamento de exibição pode ser também adaptado para ajustar os componentes de intensidade e coloridos da imagem exibida, de acordo com os modos de exibição definidos especialmente.
BR112015020009-5A 2013-02-21 2014-02-13 Gerenciamento de exibição para vídeo de alta gama dinâmica BR112015020009B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201361767380P 2013-02-21 2013-02-21
US61/767,380 2013-02-21
US201361810104P 2013-04-09 2013-04-09
US61/810,104 2013-04-09
PCT/US2014/016304 WO2014130343A2 (en) 2013-02-21 2014-02-13 Display management for high dynamic range video

Publications (2)

Publication Number Publication Date
BR112015020009A2 true BR112015020009A2 (pt) 2017-07-18
BR112015020009B1 BR112015020009B1 (pt) 2023-02-07

Family

ID=50190800

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015020009-5A BR112015020009B1 (pt) 2013-02-21 2014-02-13 Gerenciamento de exibição para vídeo de alta gama dinâmica

Country Status (13)

Country Link
US (1) US10540920B2 (pt)
EP (1) EP2959682B1 (pt)
JP (1) JP6367839B2 (pt)
KR (1) KR102157032B1 (pt)
CN (1) CN105009580B (pt)
BR (1) BR112015020009B1 (pt)
ES (1) ES2708954T3 (pt)
HK (1) HK1211156A1 (pt)
IN (1) IN2015KN02510A (pt)
MX (1) MX346011B (pt)
RU (1) RU2647636C2 (pt)
WO (1) WO2014130343A2 (pt)
ZA (1) ZA201505647B (pt)

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