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Summary: IEEE VIRTUAL REALITY 2012
Spatial Augmented Reality for
Environmentally-Lit Real-World Objects
Alvin J. Law
1
and Daniel G. Aliaga
2
Department of Computer Science at Purdue University
ABSTRACT
One augmented reality approach is to use digital projectors to
alter the appearance of a physical scene, avoiding the need for
head-mounted displays or special goggles. Instead, spatial aug-
mented reality (SAR) systems depend on having sufficient light
radiance to compensate the surface's colors to those of a target
visualization. However, standard SAR systems in dark room set-
tings may suffer from insufficient light radiance causing bright
colors to exhibit unexpected color shifts, resulting in a misleading
visualization. We introduce a SAR framework which focuses on
minimally altering the appearance of arbitrarily shaped and col-
ored objects to exploit the presence of environment/room light as
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