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Kaleidoscope configurations for reflectance measurement

Bangay, Shaun and Radloff, Judith D. 2004, Kaleidoscope configurations for reflectance measurement, in Afrigraph '04 : Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa, ACM, New York, N. Y., pp. 161-170, doi: 10.1145/1029949.1029979.

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Title Kaleidoscope configurations for reflectance measurement
Author(s) Bangay, Shaun
Radloff, Judith D.
Conference name International conference on Computer graphics, virtual reality, visualisation and interaction in Africa (3rd : 2004 : Stellenbosch, South Africa)
Conference location Stellenbosch, South Africa
Conference dates 3-5 Nov. 2004
Title of proceedings Afrigraph '04 : Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
Editor(s) [Unknown]
Publication date 2004
Conference series International conference on Computer graphics, virtual reality, visualisation and interaction in Africa
Start page 161
End page 170
Total pages 10
Publisher ACM
Place of publication New York, N. Y.
Keyword(s) kaleidoscope
BTF
BRDF
reflectance
Summary Simulations of different configurations of the symmetrical tapered kaleidoscope are performed to assess their merits for measurement of BRDFs and BTFs. The relationship between optimal kaleidoscope layout, and factors such as hardware restrictions and the resolution of the required reflectance function, is derived. The effect on the measurement of the reflectance function of changing these independent variables is examined through the simulation. These experiments highlight issues affecting the measurement of BTFs using kaleidoscopes, and suggest configurations that allow sampling at regular parameter intervals. A number of other kaleidoscope architectures are explored, which offer the benefits of potentially doubling the range of directions that can be sampled, and allowing adaptive control of sample intervals.
ISBN 1581138636
Language eng
DOI 10.1145/1029949.1029979
Field of Research 080103 Computer Graphics
Socio Economic Objective 890299 Computer Software and Services not elsewhere classified
HERDC Research category E1.1 Full written paper - refereed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039210

Document type: Conference Paper
Collection: School of Information Technology
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