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Determination of yarn production characteristics using image processing
Author(s) -
Carvalho Vítor H.,
Belsley Michael S.,
Vasconcelos Rosa M.,
Soares Filomena O.
Publication year - 2010
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/ima.20259
Subject(s) - yarn , usb , monochromatic color , computer science , image processing , orientation (vector space) , software , twist , computer vision , microscope , artificial intelligence , computer graphics (images) , image processor , image (mathematics) , optics , materials science , physics , mathematics , composite material , geometry , programming language
This article describes a low‐cost image acquisition and processing system, which measures several yarn production characteristics, namely, the fibers twist orientation, the folded yarn twist step, the folded yarn twist orientation, and the existence of single (nonfolded yarn) or multiple cables (folded yarn). The imaging hardware consists of a USB web camera coupled to an analog microscope and a monochromatic light source. The acquired images are analyzed using custom designed software based on the IMAQ Vision image program from National Instruments. A full description of the developed image processing tool is presented, together with several experimental results. The results obtained are consistent with information deduced from high‐resolution images acquired using an electron microscope. © 2010 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 20, 391–399, 2010