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  Bayesian Relighting

Fuchs, M., Blanz, V., & Seidel, H.-P. (2005). Bayesian Relighting. In Rendering Techniques 2005: Eurographics Symposium on Rendering (pp. 157-164). Aire-la-Ville, Switzerland: Eurographics Association.

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 Creators:
Fuchs, Martin1, Author           
Blanz, Volker1, Author           
Seidel, Hans-Peter1, Author           
Deussen, Oliver, Editor
Keller, Alexander1, Editor           
Bala, Kavita, Editor
Dutré, Philip, Editor
Fellner, Dieter W., Editor
Spencer, Stephen N., Editor
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1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

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 Abstract: We present a simple method for relighting real objects viewed from a fixed camera position. Instead of setting up a calibrated measurement device, such as a light stage, we manually sweep a spotlight over the walls of a white room, illuminating the object indirectly. In contrast to previous methods, we use arbitrary and unknown angular distributions of incoming light. Neither the incident light nor the reflectance function need to be represented explicitly in our approach.\\ % The new method relies on images of a probe object, for instance a black snooker ball, placed near the target object. Pictures of the probe in a novel illumination are decomposed into a linear combination of measured images of the probe. Then, a linear combination of images of the target object with the same coefficients produces a synthetic image with the new illumination. We use a simple Bayesian approach to find the most plausible output image, given the picture of the probe and the statistics observed in the dataset of samples.\\ % Our results for a variety of novel illuminations, including synthetic lighting by relatively narrow light sources as well as natural illuminations, demonstrate that the new technique is a useful, low cost alternative to existing techniques for a broad range of objects and materials.

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Language(s): eng - English
 Dates: 2006-04-252005
 Publication Status: Issued
 Pages: -
 Publishing info: Aire-la-Ville, Switzerland : Eurographics Association
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 279055
Other: Local-ID: C125675300671F7B-C4B00B3891C1EEE0C125704A007977D5-Fuchs2005b
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Title: Untitled Event
Place of Event: Konstanz, Germany
Start-/End Date: 2005-06-29

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Title: Rendering Techniques 2005: Eurographics Symposium on Rendering
Source Genre: Proceedings
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Publ. Info: Aire-la-Ville, Switzerland : Eurographics Association
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 157 - 164 Identifier: ISBN: 3-905673-23-1

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Title: Rendering Techniques
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