BR112017018893A2 - quantificador perceptivo adaptativo a conteúdo para imagens de faixa dinâmica alta - Google Patents

quantificador perceptivo adaptativo a conteúdo para imagens de faixa dinâmica alta

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Publication number
BR112017018893A2
BR112017018893A2 BR112017018893A BR112017018893A BR112017018893A2 BR 112017018893 A2 BR112017018893 A2 BR 112017018893A2 BR 112017018893 A BR112017018893 A BR 112017018893A BR 112017018893 A BR112017018893 A BR 112017018893A BR 112017018893 A2 BR112017018893 A2 BR 112017018893A2
Authority
BR
Brazil
Prior art keywords
bit depth
noise mask
image
input image
noise
Prior art date
Application number
BR112017018893A
Other languages
English (en)
Other versions
BR112017018893B1 (pt
Inventor
Su Guan-Ming
Froehlich Jan
Scott Miller Jon
atkins Robin
Daly Scott
Original Assignee
Dolby Int Ab
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 Int Ab, Dolby Laboratories Licensing Corp filed Critical Dolby Int Ab
Publication of BR112017018893A2 publication Critical patent/BR112017018893A2/pt
Publication of BR112017018893B1 publication Critical patent/BR112017018893B1/pt

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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
    • H04N19/124—Quantisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram 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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/134—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
    • H04N19/134—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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/90—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]
    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

um processador quantizador adaptativo a conteúdo recebe uma imagem de entrada com uma profundidade de bit de entrada. um processo de geração de máscara de ruído é aplicado à imagem de entrada para gerar uma imagem de máscara de ruído que caracteriza cada pixel na imagem de entrada em termos de sua relevância perceptiva em mascaramento de ruído de quantização. um histograma de máscara de ruído é gerado com base na imagem de entrada e na imagem de máscara de ruído. uma função de nível de ruído de mascaramento para profundidade de bit é aplicada ao histograma de máscara de ruído para gerar valores de profundidades de bits mínimos para cada caixa no histograma de máscara de ruído. uma função de mapeamento de palavra código é gerada com base na profundidade de bit de entrada, em uma profundidade de bit alvo e nos valores de profundidades de bits mínimos. a função de mapeamento de palavra código é aplicada à imagem de entrada para gerar uma imagem de saída na profundidade de bit alvo.
BR112017018893-7A 2015-03-02 2016-03-01 Método, aparelho e mídia de armazenamento não transitório legível por computador para a quantização perceptiva de imagens com um processador, e sistema para quantização adaptativa BR112017018893B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562126925P 2015-03-02 2015-03-02
US62/126,925 2015-03-02
PCT/US2016/020230 WO2016140954A1 (en) 2015-03-02 2016-03-01 Content-adaptive perceptual quantizer for high dynamic range images

Publications (2)

Publication Number Publication Date
BR112017018893A2 true BR112017018893A2 (pt) 2018-04-24
BR112017018893B1 BR112017018893B1 (pt) 2023-05-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017018893-7A BR112017018893B1 (pt) 2015-03-02 2016-03-01 Método, aparelho e mídia de armazenamento não transitório legível por computador para a quantização perceptiva de imagens com um processador, e sistema para quantização adaptativa

Country Status (8)

Country Link
US (1) US10419762B2 (pt)
EP (1) EP3266208B1 (pt)
JP (1) JP6484347B2 (pt)
KR (1) KR101939012B1 (pt)
CN (1) CN107409213B (pt)
BR (1) BR112017018893B1 (pt)
RU (1) RU2678483C1 (pt)
WO (1) WO2016140954A1 (pt)

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Also Published As

Publication number Publication date
US10419762B2 (en) 2019-09-17
CN107409213A (zh) 2017-11-28
KR20170113608A (ko) 2017-10-12
KR101939012B1 (ko) 2019-01-15
EP3266208B1 (en) 2019-05-08
EP3266208A1 (en) 2018-01-10
CN107409213B (zh) 2020-10-30
RU2678483C1 (ru) 2019-01-29
JP2018509708A (ja) 2018-04-05
WO2016140954A1 (en) 2016-09-09
JP6484347B2 (ja) 2019-03-13
BR112017018893B1 (pt) 2023-05-09
US20180041759A1 (en) 2018-02-08

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