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Summary: Eurographics Symposium on Geometry Processing 2009
Marc Alexa and Michael Kazhdan
(Guest Editors)
Volume 28 (2009), Number 5
Rotating Scans for Systematic Error Removal
Fatemeh Abbasinejad, Yong Joo Kil, Andrei Sharf, Nina Amenta
University of California, Davis
Abstract
Optical triangulation laser scanners produce errors at surface discontinuities and sharp features. These system-
atic errors are anisotropic. We examine the causes of these errors theoretically, and we study the correlation of
systematic error with edge size and orientation experimentally. We then present a novel processing method for
removing systematic errors, by combining scans taken at several different orientations. We apply an anisotropic
filter to the separate scans, and use it to weight the data in a final combination step. Unlike previous approaches,
our method does not require access to the scanner's internal data or firmware. We demonstrate the technique on
data from laser range scanners by two different manufacturers.
Categories and Subject Descriptors (according to ACM CCS): Computer Graphics [I.3.3]: Range Scanning--
1. Introduction
Progress in range scanning techniques has been driving a
large amount of work in geometric modeling over the past
two decades. There are many different methodologies and
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