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Best ellipse and cylinder parameters estimation from laser profile scan sections
Örebro University, School of Science and Technology. (CAD Technology)
Electrical and Computer Engineering Department, Khalifa University, Sharjah, United Arab Emirates.
Örebro University, School of Science and Technology.
2012 (English)In: Optics and lasers in engineering, ISSN 0143-8166, E-ISSN 1873-0302, Vol. 50, no 9, p. 1242-1259Article in journal (Refereed) Published
Abstract [en]

Industrial applications like robot-aided welding, automated inspection, and 3D measurements require 3D points to be captured from the surfaces of objects and processed to calculate the information-of-interest. The lack of research focused on fitting ellipses to 3D laser profile data, and the intrinsic features that distinguish it from 2D digital images, motivated us to conduct a comparative study involving the most popular ellipse-fitting methods. After describing our laser profile scanning system, and a survey of ellipse-fitting methods, we compare, using extensive experiments performed with synthetic and real data, the fitting algorithms in terms of stability and accuracy with respect to a variety of factors. The estimate obtained with the best method is used to initialize a robust non-linear iterative ellipse fitting method. Finally, we describe a novel method for the construction of cylindrical surfaces from estimated elliptical sections.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 50, no 9, p. 1242-1259
Keywords [en]
Ellipse fitting, Laser profile scanner, Industrial robot vision system, Pattern analysis, Curve fitting
National Category
Other Mechanical Engineering Robotics Computer Systems
Research subject
Mechanical Engineering; Computer and Systems Science
Identifiers
URN: urn:nbn:se:oru:diva-22965DOI: 10.1016/j.optlaseng.2012.03.014ISI: 000305773200009Scopus ID: 2-s2.0-84861585948OAI: oai:DiVA.org:oru-22965DiVA, id: diva2:528358
Projects
Geometric Modeling based on Automatic data CaptureAvailable from: 2012-05-25 Created: 2012-05-25 Last updated: 2018-05-08Bibliographically approved

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Rahayem, MohamedKjellander, Johan

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CiteExportLink to record
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  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • de-DE
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  • en-US
  • fi-FI
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  • html
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