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Summary: Catadioptric Projectors
Yuanyuan Ding1
Jing Xiao2
Kar-Han Tan3
Jingyi Yu1
1
University of Delaware, Newark, DE, USA {ding,yu}@eecis.udel.edu
2
Epson Research and Development Inc, San Jose, CA 95131, USA xiaoj@erd.epson.com
3
Hewlett-Packard Company, Palo Alto, CA 94304, USA karhan.tan@hp.com
Abstract
We present a catadioptric projector analogous to a cata-
dioptric camera by combining a commodity digital projec-
tor with additional optical units. We show that, by using
specially shaped reflectors/refractors, catadioptric projec-
tors can offer an unprecedented level of flexibility in aspect
ratio, size, and field of view. We also present efficient al-
gorithms to reduce projection artifacts in catadioptric pro-
jectors, such as distortions, scattering, and defocusing. In-
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