Rendering Synthetic Objects into Real Scenes: Bridging Traditional and Image-based Graphics with Global Illumination and High Dynamic Range Photography (1998)
| Citations: | 274 - 13 self |
BibTeX
@MISC{Debevec98renderingsynthetic,
author = {Paul Debevec},
title = {Rendering Synthetic Objects into Real Scenes: Bridging Traditional and Image-based Graphics with Global Illumination and High Dynamic Range Photography},
year = {1998}
}
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Abstract
We present a method that uses measured scene radiance and global illumination in order to add new objects to light-based models with correct lighting. The methodusesahighdynamicrangeimagebasedmodelofthescene, ratherthansyntheticlightsources,toilluminatethe new objects. Tocomputetheillumination,thesceneis consideredasthreecomponents:thedistantscene, the localscene, andthesyntheticobjects. The distant scene is assumed tobephotometricallyunaffectedbytheobjects, obviatingtheneedforreflectancemodelinformation. Thelocalsceneisendowedwithestimatedreflectancemodel informationsothatitcancatchshadows andreceivereflectedlightfromthenewobjects. Renderings are createdwithastandardglobalilluminationmethodby simulating theinteractionoflightamongstthethreecomponents. A differentialrenderingtechniqueallowsforgoodresults to be obtained when only an estimate ofthelocalscenereflectancepropertiesisknown. Weapplythegeneralmethodtotheproblemofrendering syntheticobjectsintorealscenes. The light-based model is constructed from an approximategeometricmodelofthesceneandbyusinga lightprobetomeasuretheincidentilluminationatthe locationof thesyntheticobjects. Theglobalilluminationsolutionisthen compositedintoaphotographofthesceneusing thedifferentialrenderingtechnique. Weconcludebydiscussingtherelevance of the technique to recovering surface reflectance properties in uncontrolled lighting situations. Applications of the method include visual effects, interior design, and architectural visualization.
