Summary: Structured Light 3D Scanning in the Presence of Global Illumination
, Amit Agrawal
, Ashok Veeraraghavan
and Srinivasa G. Narasimhan
Robotics Institute, Carnegie Mellon University, Pittsburgh, USA
Mitsubishi Electric Research Labs, Cambridge, USA
Global illumination effects such as inter-reflections,
diffusion and sub-surface scattering severely degrade
the performance of structured light-based 3D scanning.
In this paper, we analyze the errors caused by global
illumination in structured light-based shape recovery.
Based on this analysis, we design structured light pat-
terns that are resilient to individual global illumination
effects using simple logical operations and tools from
combinatorial mathematics. Scenes exhibiting multi-
ple phenomena are handled by combining results from