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A low-power structured light sensor for outdoor scene reconstruction and dominant material identification

Christoph Mertz, Sanjeev Jagannatha Koppal, Solomon Sia and Srinivasa G. Narasimhan
Conference Paper, Carnegie Mellon University, 9th IEEE International Workshop on Projector-Camera Systems, June, 2012

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Abstract

We introduce a compact structured light device that utilizes a commercially available MEMS mirror-enabled hand-held laser projector. Without complex re-engineering, we show how to exploit the projector’s high-speed MEMS mirror motion and laser light-sources to suppress ambient illumination, enabling low-cost and low-power reconstruction of outdoor scenes in sunlight. We also discuss how the line-striping acts as a kind of “light-probe”, creating distinctive patterns of light scattered by different types of materials. We investigate the types of visual features that can be computed from these patterns and can reliably separate out scenes that are either diffuse (wood), translucent (wax), reflective (metal) or transparent (glass).

BibTeX Reference
@conference{Mertz-2012-7506,
title = {A low-power structured light sensor for outdoor scene reconstruction and dominant material identification},
author = {Christoph Mertz and Sanjeev Jagannatha Koppal and Solomon Sia and Srinivasa G. Narasimhan},
booktitle = {9th IEEE International Workshop on Projector-Camera Systems},
keyword = {structured light, 3D reconstruction},
school = {Robotics Institute , Carnegie Mellon University},
month = {June},
year = {2012},
address = {Pittsburgh, PA},
}
2017-09-13T10:39:50+00:00