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Rotating Scans for Systematic Error Removal
Author(s) -
Abbasinejad Fatemeh,
Kil Yong Joo,
Sharf Andrei,
Amenta Nina
Publication year - 2009
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2009.01509.x
Subject(s) - computer science , classification of discontinuities , orientation (vector space) , artificial intelligence , systematic error , firmware , computer vision , scanner , enhanced data rates for gsm evolution , triangulation , range (aeronautics) , filter (signal processing) , optics , algorithm , mathematics , materials science , geometry , physics , statistics , mathematical analysis , computer hardware , composite material
Optical triangulation laser scanners produce errors at surface discontinuities and sharp features. These systematic 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.