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Diffuse Structured Light

Shree K. Nayar; Mohit Gupta

Title:
Diffuse Structured Light
Author(s):
Nayar, Shree K.; Gupta, Mohit
Date:
Type:
Articles
Department:
Computer Science
Permanent URL:
Book/Journal Title:
2012 IEEE International Conference on Computational Photography
Publisher:
IEEE
Abstract:
Today, structured light systems are widely used in applications such as robotic assembly, visual inspection, surgery, entertainment, games and digitization of cultural heritage. Current structured light methods are faced with two serious limitations. First, they are unable to cope with scene regions that produce strong highlights due to specular reflection. Second, they cannot recover useful information for regions that lie within shadows. We observe that many structured light methods use illumination patterns that have translational symmetry, i.e., two-dimensional patterns that vary only along one of the two dimensions. We show that, for this class of patterns, diffusion of the patterns along the axis of translation can mitigate the adverse effects of specularities and shadows. We show results for two applications - 3D scanning using phase shifting of sinusoidal patterns and separation of direct and global components of light transport using high-frequency binary stripes.
Subject(s):
Computer science
Publisher DOI:
http://dx.doi.org/10.1109/ICCPhot.2012.6215216
Item views:
114
Metadata:
text | xml

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