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WO2012000847A3 - Procede d'estimation de diffusion de la lumiere - Google Patents

Procede d'estimation de diffusion de la lumiere Download PDF

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Publication number
WO2012000847A3
WO2012000847A3 PCT/EP2011/060373 EP2011060373W WO2012000847A3 WO 2012000847 A3 WO2012000847 A3 WO 2012000847A3 EP 2011060373 W EP2011060373 W EP 2011060373W WO 2012000847 A3 WO2012000847 A3 WO 2012000847A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
medium
estimation
help
amount
Prior art date
Application number
PCT/EP2011/060373
Other languages
English (en)
Other versions
WO2012000847A2 (fr
Inventor
Cyril Delalandre
Pascal Gautron
Jean-Eudes Marvie
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
Priority to EP11729394.4A priority Critical patent/EP2589025A2/fr
Priority to US13/807,494 priority patent/US20130100135A1/en
Publication of WO2012000847A2 publication Critical patent/WO2012000847A2/fr
Publication of WO2012000847A3 publication Critical patent/WO2012000847A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/506—Illumination models

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

L'invention concerne un procédé d'estimation de la quantité de lumière diffusée par un milieu participant hétérogène (10). Afin d'améliorer le rendu tout en minimisant les temps de calculs nécessaires, le procédé comprend les étapes de : - estimation de coefficients de projection dans une base de fonction à partir de valeurs représentative de densité pour un ensemble de points (13) dudit milieu situés le long d'au moins une direction d'émission (110) de lumière par une source lumineuse (11), et - estimation de la quantité de lumière diffusée par ledit milieu (10), selon au moins une direction de diffusion (120) de la lumière, à partir desdits coefficients de projection estimés.
PCT/EP2011/060373 2010-07-01 2011-06-21 Procede d'estimation de diffusion de la lumiere WO2012000847A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11729394.4A EP2589025A2 (fr) 2010-07-01 2011-06-21 Procede d'estimation de diffusion de la lumiere
US13/807,494 US20130100135A1 (en) 2010-07-01 2011-06-21 Method of estimating diffusion of light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10305720 2010-07-01
EP10305720.4 2010-07-01

Publications (2)

Publication Number Publication Date
WO2012000847A2 WO2012000847A2 (fr) 2012-01-05
WO2012000847A3 true WO2012000847A3 (fr) 2012-03-22

Family

ID=44627915

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/060373 WO2012000847A2 (fr) 2010-07-01 2011-06-21 Procede d'estimation de diffusion de la lumiere

Country Status (3)

Country Link
US (1) US20130100135A1 (fr)
EP (1) EP2589025A2 (fr)
WO (1) WO2012000847A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948800A1 (fr) * 2009-11-16 2011-02-04 Thomson Licensing Procede d'estimation de diffusion de la lumiere
EP2803042A1 (fr) 2012-01-10 2014-11-19 Thomson Licensing Procédé et dispositif permettant d'estimer la dispersion de la lumière
BE1021805B1 (nl) 2013-11-05 2016-01-19 Creachem Bvba Methode voor het isoleren van koolhydraat alkylcarbamaten

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Also Published As

Publication number Publication date
US20130100135A1 (en) 2013-04-25
WO2012000847A2 (fr) 2012-01-05
EP2589025A2 (fr) 2013-05-08

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