InImpact: The Journal of Innovation Impact

Publisher Future Technology Press
Vol. 8 No. 2 KES Transactions on SDM II - Sustainable Design and Manufacturing 2015
Volume Editors KES International
Journal ISSN 2051-6002
Article TitleEffect of illumination wavelength on optimizing multicamera location systems in a factory environment
Primary AuthorStuart Robson, Dept of Civil, Environmental and Geomatic Engineering
Other Author(s) Lindsay MacDonald; Stephen Kyle; Mark Shortis
Pages 503 - 512
Article ID sdm15-071
Publication Date 02-May-16

As a model for a full-scale, factory-wide system, a system for dimensional measurement has been constructed using eight low-cost monochrome cameras with C-mount lenses on a rigid metal framework. The cameras were synchronised to capture simultaneous image sets, and photogrammetric software used to locate in each image the centroids of retroreflective targets on a 3D test object. The distortion parameters of the lens on each camera were estimated, and a target network constructed to a precision of better than 4.5 µm (at k=1), equivalent to a 1:220,000 discrimination range. Targets were illuminated by an annular LED ring attached to the front mounting ring of the lens of each camera, and the analysis was repeated for four different LED wavelengths.

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Remarks Paper presented at KES International Conference on Sustainable Design and Manufacturing, 12-14 April 2015
First date of publication in InImpact: 1 December 2015