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2002

A lighting reproduction approach to live-action compositing

8 years 11 months ago
A lighting reproduction approach to live-action compositing
We describe a process for compositing a live performance of an actor into a virtual set wherein the actor is consistently illuminated by the virtual environment. The Light Stage used in this work is a two-meter sphere of inward-pointing RGB light emitting diodes focused on the actor, where each light can be set to an arbitrary color and intensity to replicate a real-world or virtual lighting environment. We implement a digital two-camera infrared matting system to composite the actor into the background plate of the environment without affecting the visible-spectrum illumination on the actor. The color reponse of the system is calibrated to produce correct color renditions of the actor as illuminated by the environment. We demonstrate moving-camera composites of actors into real-world environments and virtual sets such that the actor is properly illuminated by the environment into which they are composited.
Paul E. Debevec, Andreas Wenger, Chris Tchou, Andr
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TOG
Authors Paul E. Debevec, Andreas Wenger, Chris Tchou, Andrew Gardner, Jamie Waese, Tim Hawkins
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