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EUROGRAPHICS
2010
Eurographics

Global Illumination Compensation for Spatially Augmented Reality

11 years 1 months ago
Global Illumination Compensation for Spatially Augmented Reality
When projectors are used to display images on complex, non-planar surface geometry, indirect illumination between the surfaces will disrupt the ļ¬nal appearance of this imagery, generally increasing brightness, decreasing contrast, and washing out colors. In this paper we predict through global illumination simulation this unintentional indirect component and solve for the optimal compensated projection imagery that will minimize the difference between the desired imagery and the actual total illumination in the resulting physical scene. Our method makes use of quadratic programming to minimize this error within the constraints of the physical system, namely, that negative light is physically impossible. We demonstrate our compensation optimization in both computer simulation and physical validation within a table-top spatially augmented reality system. We present an application of these results for visualization of interior architectural illumination. To facilitate interactive modiļ...
Yu Sheng, Theodore C. Yapo, Barbara Cutler
Added 11 Mar 2010
Updated 15 Mar 2010
Type Conference
Year 2010
Where EUROGRAPHICS
Authors Yu Sheng, Theodore C. Yapo, Barbara Cutler
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