Article | SIGRAD 2005 The Annual SIGRAD Conference Special Theme - Mobile Graphics | A Novel Approach to Compress Reflection Functions Based on PCA

Title:
A Novel Approach to Compress Reflection Functions Based on PCA
Author:
Björn Olsson: Linköping University, Sweden Anders Hast: Linköping University, Sweden Anders Ynnerman: Linköping University, Sweden
Download:
Full text (pdf)
Year:
2005
Conference:
SIGRAD 2005 The Annual SIGRAD Conference Special Theme - Mobile Graphics
Issue:
016
Article no.:
010
Pages:
51-56
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2005-11-23
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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In many applications it is important to perform image-based relighting. That is; to synthesize a scene in various lighting conditions without explicitely rerendering the image. This paper proposes an efficient compression method; which after a precomputing step allows an efficient re-rendering of the scene. The best results are achieved on scenes with a limited number of materials; but it may also be used on arbitrary scenes. In this work images of a static scene are generated and the method is exemplified using a dataset of ray-traced images.

CR Categories: I.3.3 [Computer graphics]: Picture/Image Generation; I.3.7 [Computer graphics]: Three-Dimensional

Keywords: BRDF; PCA; image-based relighting

SIGRAD 2005 The Annual SIGRAD Conference Special Theme - Mobile Graphics

Author:
Björn Olsson, Anders Hast, Anders Ynnerman
Title:
A Novel Approach to Compress Reflection Functions Based on PCA
References:

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SIGRAD 2005 The Annual SIGRAD Conference Special Theme - Mobile Graphics

Author:
Björn Olsson, Anders Hast, Anders Ynnerman
Title:
A Novel Approach to Compress Reflection Functions Based on PCA
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