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International Conference on Information Technology and Scientific Management (ICITSM 2010 E-BOOK)

Tianjin,China,12.20-12.21,2010

ISBN: 978-1-935068-40-2 Scientific Research Publishing, USA

E-Book 1078pp Pub. Date: December 2010

Category: Computer Science & Communications

Price: $220

Title: The Automating Measurement of Stitch Distortion by Image Processing Technology and Fourier Transform
Source: International Conference on Information Technology and Scientific Management (ICITSM 2010 E-BOOK) (pp 640-643)
Author(s): Yuewu Zhou, Tianjin Polytechnic University, Tianjin, China, 300160
Guangli Song, Tianjin Polytechnic University, Tianjin, China, 300160
Abstract: The stitch distortion of knitted fabric is an important parameter for the knitted fabric detection and it is measured manually at present. This paper discusses how to process knitted fabric image and calculate the stitch distortion using image processing technology and MATLAB image processing tool. By rotational property of Fourier transform, i.e. if a function f ( x ,? ) of the image turns an angle θ in the space domain, the Fourier transform of the function would turn a same angle in the transform frequency domain, that is, if the angle between stitch row and stitch course in the knitted fabric image is θ, the angle between the lines of their feature points in their transform frequency domain, then the angle of stitch distortion can be obtained through Fourier transform of the fabric image. By examination tests, the result is credible and the automating of the stitch distortion is realized.
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