Adaptive stray-light compensation in dynamic multi-projection mapping

• Main Authors: Christian Siegl, Matteo Colaianni, Marc Stamminger, Frank Bauer
• Format: Article
• Language: English
• Published: SpringerOpen 2017-06-01
• Series: Computational Visual Media
• Subjects: mixed reality; projection mapping; multiprojector; real time; interreflection; environmental light
• Online Access: http://link.springer.com/article/10.1007/s41095-017-0090-8

Abstract Projection-based mixed reality is an effective tool to create immersive visualizations on real-world objects. Its wide range of applications includes art installations, education, stage shows, and advertising. In this work, we enhance a multi-projector system for dynamic projection mapping by handling various physical stray-light effects: interreflection, projector black-level, and environmental light in real time for dynamic scenes. We show how all these effects can be efficiently simulated and accounted for at runtime, resulting in significantly improved projection mapping results. By adding a global optimization step, we can further increase the dynamic range of the projection.