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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 US13/807,494 priority Critical patent/US20130100135A1/en
Priority to EP11729394.4A priority patent/EP2589025A2/fr
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
US13/807,494 US20130100135A1 (en) 2010-07-01 2011-06-21 Method of estimating diffusion of light
EP11729394.4A EP2589025A2 (fr) 2010-07-01 2011-06-21 Procede d'estimation de diffusion de la lumiere

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
WO2013104493A1 (fr) 2012-01-10 2013-07-18 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

Family Cites Families (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519354A (en) * 1965-06-17 1970-07-07 Sperry Rand Corp System for measuring extinction coefficients in the atmosphere utilizing backscattered signals
US4128335A (en) * 1977-02-25 1978-12-05 General Electric Company Condensation nuclei counter with automatic ranging
US4475816A (en) * 1980-02-15 1984-10-09 The United States Of America As Represented By The Secretary Of The Navy Method for determining in situ the absorption coefficient of particulate media using pulsed laser technique
US4362387A (en) * 1980-08-22 1982-12-07 Rockwell International Corporation Method and apparatus for measuring visibility from the polarization properties of the daylight sky
FR2504278B1 (fr) * 1981-04-15 1985-11-08 Commissariat Energie Atomique Detecteur de rayons x
DE3581325D1 (de) * 1984-06-30 1991-02-21 Toshiba Kawasaki Kk Apparat zur messung der abmessungen von teilchen.
AU7747591A (en) * 1990-05-12 1991-12-10 Rediffusion Simulation Limited Image generator
JPH0757117A (ja) * 1993-07-09 1995-03-03 Silicon Graphics Inc テクスチャマップへの索引を生成する方法及びコンピュータ制御表示システム
JPH0778267A (ja) * 1993-07-09 1995-03-20 Silicon Graphics Inc 陰影を表示する方法及びコンピュータ制御表示システム
KR100402169B1 (ko) * 1995-04-27 2004-03-10 닛폰콜롬비아 가부시키가이샤 다층구조광정보매체
JP2956653B2 (ja) * 1996-12-16 1999-10-04 日本電気株式会社 パーティクルモニター装置
JPH1123458A (ja) * 1997-05-08 1999-01-29 Nittan Co Ltd 煙感知器および監視制御システム
US9007393B2 (en) * 1997-07-02 2015-04-14 Mental Images Gmbh Accurate transparency and local volume rendering
US6500008B1 (en) * 1999-03-15 2002-12-31 Information Decision Technologies, Llc Augmented reality-based firefighter training system and method
AU2001239926A1 (en) * 2000-02-25 2001-09-03 The Research Foundation Of State University Of New York Apparatus and method for volume processing and rendering
US6593923B1 (en) * 2000-05-31 2003-07-15 Nvidia Corporation System, method and article of manufacture for shadow mapping
US6690372B2 (en) * 2000-05-31 2004-02-10 Nvidia Corporation System, method and article of manufacture for shadow mapping
US7348977B2 (en) * 2000-07-19 2008-03-25 Pixar Subsurface scattering approximation methods and apparatus
US6738659B2 (en) * 2000-08-31 2004-05-18 Hsu Pei-Feng Optical imaging using the temporal direct reflective signal from a minimized pulse width laser
US7046243B1 (en) * 2000-11-21 2006-05-16 Microsoft Corporation Rendering volumetric fog and other gaseous phenomena
FR2820965B1 (fr) * 2001-02-16 2003-04-04 Commissariat Energie Atomique Procede d'estimation d'un rayonnement diffuse, notamment afin de corriger des mesures en radiographie
US6930777B1 (en) * 2001-04-03 2005-08-16 The Texas A&M University System Method for characterizing particles in suspension from frequency domain photon migration measurements
KR100612827B1 (ko) * 2001-04-19 2006-08-14 삼성전자주식회사 비 침습적인 헤모글로빈 농도와 산소 포화도 모니터링방법 및 장치
US7045169B2 (en) * 2001-09-04 2006-05-16 J.M. Huber Corporation Method of predicting optical properties and physical characteristics to formulate optimum coating system
US20030049866A1 (en) * 2001-09-05 2003-03-13 Genicon Sciences Corporation Sample device preservation
US6841778B1 (en) * 2001-11-09 2005-01-11 Environmental Systems Products Holdings Inc. Method and apparatus for measuring particulates in vehicle emissions
JP3962588B2 (ja) * 2002-01-07 2007-08-22 キヤノン株式会社 三次元画像処理方法、三次元画像処理装置、三次元画像処理システムおよび三次元画像処理プログラム
WO2003088133A1 (fr) * 2002-04-06 2003-10-23 Barbour Randall L Modification de la methode de difference normalisee pour une tomographie optique en temps reel
JP2003317315A (ja) * 2002-04-19 2003-11-07 Tdk Corp 光記録媒体
WO2003102558A1 (fr) * 2002-06-04 2003-12-11 Visen Medical, Inc. Tomographie avec et sans contact : volumes d'imagerie avec geometries arbitraires
AU2003297596A1 (en) * 2002-11-26 2004-06-18 The Trustees Of Columbia University In The City Of New York Systems and methods for modeling the impact of a medium on the appearances of encompassed light sources
US20060173355A1 (en) * 2003-04-17 2006-08-03 Alfano Robert R Detecting human cancer through spectral optical imaging using key water absorption wavelengths
US7019744B2 (en) * 2003-04-30 2006-03-28 Pixar Method and apparatus for rendering of translucent objects using volumetric grids
US7859530B2 (en) * 2003-04-30 2010-12-28 Pixar Subsurface rendering methods and apparatus
US7443394B2 (en) * 2003-04-30 2008-10-28 Pixar Method and apparatus for rendering of complex translucent objects using multiple volumetric grids
US7184043B2 (en) * 2003-04-30 2007-02-27 Pixar Color compensated translucent object rendering methods and apparatus
AU2003902319A0 (en) * 2003-05-14 2003-05-29 Garrett Thermal Systems Limited Laser video detector
US7091973B1 (en) * 2003-06-20 2006-08-15 Jonathan Michael Cohen Apparatus and method for estimating reflected radiance under complex distant illumination
JP2005044744A (ja) * 2003-07-25 2005-02-17 Clariant Internatl Ltd 面光源装置
JP4303138B2 (ja) * 2004-01-28 2009-07-29 富士フイルム株式会社 シート状導光体を用いた通信システム
US7696995B2 (en) * 2004-05-07 2010-04-13 Valve Corporation System and method for displaying the effects of light illumination on a surface
US7218324B2 (en) * 2004-06-18 2007-05-15 Mitsubishi Electric Research Laboratories, Inc. Scene reflectance functions under natural illumination
CA2623859C (fr) * 2004-11-12 2015-05-26 Xtralis Technologies Ltd Detecteur de particules, systeme et procede
US7710418B2 (en) * 2005-02-04 2010-05-04 Linden Acquisition Corporation Systems and methods for the real-time and realistic simulation of natural atmospheric lighting phenomenon
US8472020B2 (en) * 2005-02-15 2013-06-25 Cinram Group, Inc. Process for enhancing dye polymer recording yields by pre-scanning coated substrate for defects
US8125813B2 (en) * 2005-06-16 2012-02-28 Best Medical International, Inc. Variance reduction simulation system, program product, and related methods
US7312797B2 (en) * 2005-06-24 2007-12-25 Microsoft Corporation Representing quasi-homogenous materials
JP4889652B2 (ja) * 2005-10-31 2012-03-07 パナソニック株式会社 光学的情報記録媒体
JP4201207B2 (ja) * 2005-11-21 2008-12-24 株式会社バンダイナムコゲームス プログラム、情報記憶媒体及び画像生成システム
US20070285422A1 (en) * 2006-01-18 2007-12-13 Nayar Shree K Method for Separating Direct and Global Illumination in a Scene
US7633062B2 (en) * 2006-10-27 2009-12-15 Los Alamos National Security, Llc Radiation portal monitor system and method
JP4241834B2 (ja) * 2007-01-11 2009-03-18 株式会社デンソー 車載霧判定装置
US7838108B2 (en) * 2007-01-17 2010-11-23 Sabic Innovative Plastics Ip B.V. Nano-cellular polymer foam and methods for making them
US8267927B2 (en) * 2007-01-24 2012-09-18 Koninklijke Philips Electronics N.V. Advanced ablation planning
US8212262B2 (en) * 2007-02-09 2012-07-03 Cree, Inc. Transparent LED chip
JP4868190B2 (ja) * 2007-06-13 2012-02-01 株式会社島津製作所 ナノ粒子計測装置
JP4873202B2 (ja) * 2007-06-21 2012-02-08 株式会社島津製作所 光学的測定の解析方法
US7990377B2 (en) * 2007-06-26 2011-08-02 Microsoft Corporation Real-time rendering of light-scattering media
US8009168B2 (en) 2007-06-26 2011-08-30 Microsoft Corporation Real-time rendering of light-scattering media
US8190403B2 (en) * 2007-06-26 2012-05-29 Microsoft Corporation Real-time rendering of light-scattering media
US7940269B2 (en) * 2007-06-29 2011-05-10 Microsoft Corporation Real-time rendering of light-scattering media
US7940268B2 (en) * 2007-06-29 2011-05-10 Microsoft Corporation Real-time rendering of light-scattering media
US20090026924A1 (en) * 2007-07-23 2009-01-29 Leung Roger Y Methods of making low-refractive index and/or low-k organosilicate coatings
US8674986B2 (en) * 2007-07-25 2014-03-18 Digital Domain Products, Inc. Method and system for scattered spherical harmonic approximation
WO2009019766A1 (fr) * 2007-08-08 2009-02-12 Shimadzu Corporation Instrument de mesure optique et sa paire d'électrodes
JP5219440B2 (ja) * 2007-09-12 2013-06-26 キヤノン株式会社 測定装置
US9025144B2 (en) * 2007-11-15 2015-05-05 Xtralis Technologies Ltd. Particle detection
ATE507544T1 (de) * 2008-02-19 2011-05-15 Siemens Ag Rauchdetektion mittels zweier spektral unterschiedlicher streulichtmessungen
US8243071B2 (en) * 2008-02-29 2012-08-14 Microsoft Corporation Modeling and rendering of heterogeneous translucent materials using the diffusion equation
AU2009257179B2 (en) * 2008-06-10 2014-12-11 Garrett Thermal Systems Limited Particle detection
US8181511B2 (en) * 2008-07-18 2012-05-22 Meier Robert R Method and system of imaging electrons in the near earth space environment
US20100033482A1 (en) * 2008-08-11 2010-02-11 Interactive Relighting of Dynamic Refractive Objects Interactive Relighting of Dynamic Refractive Objects
US20100085360A1 (en) * 2008-10-04 2010-04-08 Microsoft Corporation Rendering in scattering media
GB2465792A (en) * 2008-11-28 2010-06-02 Sony Corp Illumination Direction Estimation using Reference Object
US8797531B2 (en) * 2009-05-01 2014-08-05 Xtralis Technologies Ltd Particle detectors
US20120232830A1 (en) * 2009-11-16 2012-09-13 Cyril Delalandre Method for estimating light scattering
FR2948800A1 (fr) * 2009-11-16 2011-02-04 Thomson Licensing Procede d'estimation de diffusion de la lumiere
FR2948801A1 (fr) * 2009-11-24 2011-02-04 Thomson Licensing Procede d'estimation de diffusion de la lumiere
JP2011214942A (ja) * 2010-03-31 2011-10-27 Fujifilm Corp 光断層計測装置
FR2966623A1 (fr) * 2010-10-21 2012-04-27 Thomson Licensing Procede d’estimation de l’occultation dans un environnement virtuel
WO2012086658A1 (fr) * 2010-12-24 2012-06-28 日本電気株式会社 Procédé, système et programme de traitement d'image
US8872826B2 (en) * 2011-02-17 2014-10-28 Sony Corporation System and method for decoupled ray marching for production ray tracking in inhomogeneous participating media
US9262860B2 (en) * 2011-02-17 2016-02-16 Sony Corporation System and method for importance sampling of area lights in participating media
US8922556B2 (en) * 2011-04-18 2014-12-30 Microsoft Corporation Line space gathering for single scattering in large scenes
US8338785B2 (en) * 2011-04-29 2012-12-25 Rosemount Aerospace Inc. Apparatus and method for detecting aircraft icing conditions
US8638331B1 (en) * 2011-09-16 2014-01-28 Disney Enterprises, Inc. Image processing using iterative generation of intermediate images using photon beams of varying parameters
WO2013104493A1 (fr) * 2012-01-10 2013-07-18 Thomson Licensing Procédé et dispositif permettant d'estimer la dispersion de la lumière
FR2988502A1 (fr) * 2012-03-26 2013-09-27 Thomson Licensing Procede pour representer un milieu participant dans une scene et dispositif correspondant
TW201401225A (zh) * 2012-06-22 2014-01-01 Thomson Licensing 異質參與媒體之一點所接收光量之估計方法及所構成裝置
US9401043B2 (en) * 2013-01-18 2016-07-26 Pixar Photon beam diffusion

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Discrete cosine transform", INTERNET CITATION, 2 September 2009 (2009-09-02), pages 1 - 9, XP002596944, Retrieved from the Internet <URL:http://en.wikipedia.org/w/index.php?title=Discrete_cosine_transform&oldid=311440997> [retrieved on 20100812] *
ANONYMOUS: "Particle System", 31 March 2010 (2010-03-31), pages 1 - 4, XP002667656, Retrieved from the Internet <URL:HTTP://EN.WIKIPEDIA.ORG/W/INDEX.PHP?TITLE=PARTICLE_SYSTEM&OLDID=353246697> [retrieved on 20120115] *
EVA CEREZO ET AL: "A survey on participating media rendering techniques", THE VISUAL COMPUTER ; INTERNATIONAL JOURNAL OF COMPUTER GRAPHICS, SPRINGER, BERLIN, DE, vol. 21, no. 5, 1 June 2005 (2005-06-01), pages 303 - 328, XP019339111, ISSN: 1432-8726, DOI: 10.1007/S00371-005-0287-1 *
MAIERHOFER, STEFAN: "A Flexible Framework for Volume Tracing", 6 April 2000 (2000-04-06), pages 1 - 11, XP002667623, Retrieved from the Internet <URL:http://www.cescg.org/CESCG-2000/SMaierhofer/paper.pdf> [retrieved on 20120113] *
NIELSEN M B: "Course Notes for Simulating Fluids in CG Ray Marching", INTERNET CITATION, 7 April 2009 (2009-04-07), pages 1 - 4, XP002596943, Retrieved from the Internet <URL:http://www.daimi.au.dk/~bang/fluids2009/raymarching.pdf> [retrieved on 20100811] *

Also Published As

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

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