BRPI0414641A - método para simular granulação de filme mediante composição em mosaico de amostras pré-computadas - Google Patents

método para simular granulação de filme mediante composição em mosaico de amostras pré-computadas

Info

Publication number
BRPI0414641A
BRPI0414641A BRPI0414641-7A BRPI0414641A BRPI0414641A BR PI0414641 A BRPI0414641 A BR PI0414641A BR PI0414641 A BRPI0414641 A BR PI0414641A BR PI0414641 A BRPI0414641 A BR PI0414641A
Authority
BR
Brazil
Prior art keywords
blocks
granulation
image
film
film granulation
Prior art date
Application number
BRPI0414641-7A
Other languages
English (en)
Inventor
Cristina Gomila
Joan Llach
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 BRPI0414641A publication Critical patent/BRPI0414641A/pt
Publication of BRPI0414641B1 publication Critical patent/BRPI0414641B1/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/10—Image enhancement or restoration using non-spatial domain filtering
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • H04N19/23—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding with coding of regions that are present throughout a whole video segment, e.g. sprites, background or mosaic
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20021—Dividing image into blocks, subimages or windows
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20052—Discrete cosine transform [DCT]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

"MéTODO PARA SIMULAR GRANULAçãO DE FILME MEDIANTE COMPOSIçãO EM MOSAICO DE AMOSTRAS PRé-COMPUTADAS". Granulação de filme é simulada em uma imagem de saída (19) utilizando blocos preestabelecidos de granulação de filme (408) a partir de um grupo (408) de blocos preestabelecidos. Blocos de granulação de filme sucessivos são selecionados mediante combinação da intensidade média de um bloco a partir do grupo com a intensidade média de um bloco sucessivo de um conjunto de pixels N x M em uma imagem que chega. Quando todos os blocos de pixels sucessivos a partir da imagem são combinados com blocos de granulação de filme selecionados, os blocos de granulação de filme selecionados são 'executados em mosaico', isto é, compostos em uma imagem maior mapeada para a imagem que chega.
BRPI0414641A 2003-09-23 2004-09-10 método para simular granulação de filme mediante composição em mosaico de amostras pré-computadas BRPI0414641B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50514603P 2003-09-23 2003-09-23
PCT/US2004/029410 WO2005034518A1 (en) 2003-09-23 2004-09-10 Method for simulating film grain by mosaicing pre-computed samples

Publications (2)

Publication Number Publication Date
BRPI0414641A true BRPI0414641A (pt) 2006-11-21
BRPI0414641B1 BRPI0414641B1 (pt) 2019-01-08

Family

ID=34421522

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414641A BRPI0414641B1 (pt) 2003-09-23 2004-09-10 método para simular granulação de filme mediante composição em mosaico de amostras pré-computadas

Country Status (11)

Country Link
US (1) US7945106B2 (pt)
EP (1) EP1676445B1 (pt)
JP (1) JP5100121B2 (pt)
KR (1) KR100993990B1 (pt)
CN (1) CN1857006B (pt)
AU (1) AU2004306386B2 (pt)
BR (1) BRPI0414641B1 (pt)
CA (1) CA2538785C (pt)
RU (1) RU2340943C2 (pt)
WO (1) WO2005034518A1 (pt)
ZA (1) ZA200602350B (pt)

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Also Published As

Publication number Publication date
CA2538785A1 (en) 2005-04-14
KR100993990B1 (ko) 2010-11-11
WO2005034518A1 (en) 2005-04-14
US20070058878A1 (en) 2007-03-15
CN1857006A (zh) 2006-11-01
EP1676445B1 (en) 2019-09-04
CA2538785C (en) 2013-10-29
EP1676445A1 (en) 2006-07-05
US7945106B2 (en) 2011-05-17
AU2004306386B2 (en) 2009-10-29
JP2007521573A (ja) 2007-08-02
BRPI0414641B1 (pt) 2019-01-08
RU2006113606A (ru) 2007-11-20
RU2340943C2 (ru) 2008-12-10
KR20060135612A (ko) 2006-12-29
ZA200602350B (en) 2007-09-26
JP5100121B2 (ja) 2012-12-19
AU2004306386A1 (en) 2005-04-14
HK1093643A1 (en) 2007-03-02
CN1857006B (zh) 2011-06-08

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