Variance minimization light probe sampling

Authors:
Kuntee Viriyothai;Paul Debevec
Affiliations:
University of Southern California;University of Southern California
Venue:
SIGGRAPH '09: Posters
Year:
2009

Citing 2
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Abstract

We present a technique for sampling the light probe image using variance minimization. The technique modifies median cut algorithm for light probe sampling [Debevec 2005] so that the variance of each region is minimized. The algorithm is fast, efficient, and easy to implement.