BRPI0408570A - técnica para simular granulação de filme em vìdeo codificado - Google Patents

técnica para simular granulação de filme em vìdeo codificado

Info

Publication number
BRPI0408570A
BRPI0408570A BRPI0408570-1A BRPI0408570A BRPI0408570A BR PI0408570 A BRPI0408570 A BR PI0408570A BR PI0408570 A BRPI0408570 A BR PI0408570A BR PI0408570 A BRPI0408570 A BR PI0408570A
Authority
BR
Brazil
Prior art keywords
film granulation
granulation
film
encoded video
technique
Prior art date
Application number
BRPI0408570-1A
Other languages
English (en)
Inventor
Cristina Gomila
Jill Macdonald Boyce
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 BRPI0408570A publication Critical patent/BRPI0408570A/pt
Publication of BRPI0408570B1 publication Critical patent/BRPI0408570B1/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/102—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
    • H04N19/169—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
    • H04N19/179—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 scene or a shot
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/87—Producing a motion picture film from a television signal
    • 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
    • G06T2207/10016—Video; Image sequence
    • 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
    • G06T2207/20204—Removing film grain; Adding simulated film grain
    • 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

Landscapes

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

Abstract

"TéCNICA PARA SIMULAR GRANULAçãO DE FILME EM VìDEO CODIFICADO". A simulação da granulação de filme em uma imagem codificada ocorre por extração da granulação de filme e, a seguir, caracterização da granulação de filme para codificação em um fluxo de vídeo, para permitir a restauração da granulação de filme após a decodificação. De modo particular, a granulação de filme é caracterizada com base no tipo de filme, ou pelo uso de um modelo específico. Na prática, detalhes da granulação de filme são transmitidos como informações paralelas ao fluxo codificado de vídeo, tipicamente sob forma de uma mensagem de Informações Complementares para Melhoria (SEI) da granulação de filme, empregando-se a norma de codificação de vídeo ITU-T H.264.
BRPI0408570-1A 2003-04-10 2004-02-24 Processos e aparelho para simular granulação de filme em uma imagem BRPI0408570B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US46238903P 2003-04-10 2003-04-10
US60/462.389 2003-04-10
PCT/US2004/005365 WO2004095829A1 (en) 2003-04-10 2004-02-24 Technique for simulating film grain on encoded video

Publications (2)

Publication Number Publication Date
BRPI0408570A true BRPI0408570A (pt) 2006-03-21
BRPI0408570B1 BRPI0408570B1 (pt) 2018-02-27

Family

ID=33310736

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0408570-1A BRPI0408570B1 (pt) 2003-04-10 2004-02-24 Processos e aparelho para simular granulação de filme em uma imagem

Country Status (9)

Country Link
US (1) US7899113B2 (pt)
EP (1) EP1611740B1 (pt)
JP (2) JP4723483B2 (pt)
KR (1) KR100987666B1 (pt)
CN (1) CN100591102C (pt)
BR (1) BRPI0408570B1 (pt)
ES (1) ES2395718T3 (pt)
MY (1) MY154342A (pt)
WO (1) WO2004095829A1 (pt)

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Also Published As

Publication number Publication date
CN1771721A (zh) 2006-05-10
US20060215767A1 (en) 2006-09-28
EP1611740A1 (en) 2006-01-04
US7899113B2 (en) 2011-03-01
WO2004095829A1 (en) 2004-11-04
EP1611740B1 (en) 2012-11-21
CN100591102C (zh) 2010-02-17
KR100987666B1 (ko) 2010-10-13
JP2006524013A (ja) 2006-10-19
MY154342A (en) 2015-05-29
KR20050120708A (ko) 2005-12-22
BRPI0408570B1 (pt) 2018-02-27
JP2011091822A (ja) 2011-05-06
ES2395718T3 (es) 2013-02-14
JP4723483B2 (ja) 2011-07-13

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: DOLBY INTERNATIONAL AB (NL)

B15K Others concerning applications: alteration of classification

Ipc: H04N 19/136 (2014.01), H04N 19/117 (2014.01), G06T

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B25G Requested change of headquarter approved