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Accurate light source acquisition and rendering

Published: 01 July 2003 Publication History

Abstract

Realistic image synthesis requires both complex and realistic models of real-world light sources and efficient rendering algorithms to deal with them. In this paper, we describe a processing pipeline for dealing with complex light sources from acquisition to global illumination rendering. We carefully design optical filters to guarantee high precision measurements of real-world light sources. We discuss two practically feasible setups that allow us to measure light sources with different characteristics. Finally, we introduce an efficient importance sampling algorithm for our representation that can be used, for example, in conjunction with Photon Maps.

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cover image ACM Conferences
SIGGRAPH '03: ACM SIGGRAPH 2003 Papers
July 2003
683 pages
ISBN:1581137095
DOI:10.1145/1201775
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 01 July 2003

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Author Tags

  1. modeling -- light sources
  2. modeling -- object scanning/acquisition
  3. modeling -- physically-based modelling
  4. rendering -- global illumination
  5. rendering -- image-based rendering
  6. rendering -- raytracing

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SIGGRAPH '03 Paper Acceptance Rate 81 of 424 submissions, 19%;
Overall Acceptance Rate 1,822 of 8,601 submissions, 21%

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