THREAD MEASURING APPARATUS, MEASURING PROGRAM, AND MEASURING METHOD

WIPO Patent Application WO/2010/010767

A1

Disclosed is a thread measuring apparatus, which controls a back light source (102) so that a color difference between a thread (90) and an illumination may be at or higher than a predetermined value.  With the illumination color of the back light source (102) being optimized, a digital image of the thread (90) is taken by a camera (6), and a two-dimensional Fourier-transformed image is formed along the width direction and the longitudinal direction of the thread.  A low-frequency component corresponding to the thread body is extracted from the two-dimensional Fourier-transformed image, and is subjected to a two-dimensional reverse Fourier-transformation thereby reproducing the image of the thread body.  Thus, it is possible to determine the thread diameter precisely and the color components of the thread.

FUJISAKI Hirotaka (C/O SHIMA SEIKI MANUFACTURING LTD, 85, Sakata, Wakayama-sh, Wakayama 03, 〒6410003, JP)
藤崎　浩孝 (〒03 和歌山県和歌山市坂田８５番地　株式会社島精機製作所内 Wakayama, 〒6410003, JP)

JP2009/061175

January 28, 2010

June 19, 2009

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SHIMA SEIKI MANUFACTURING, LTD. (85 Sakata, Wakayama-shi. Wakayama, 03, 〒6410003, JP)
株式会社島精機製作所 (〒03 和歌山県和歌山市坂田８５番地 Wakayama, 〒6410003, JP)
FUJISAKI Hirotaka (C/O SHIMA SEIKI MANUFACTURING LTD, 85, Sakata, Wakayama-sh, Wakayama 03, 〒6410003, JP)

G01B11/08; D01H13/32; D04B35/00

SHIOIRI Akira et al. (4-1-409, Funado-cho Ashiya-sh, Hyogo 93, 〒6590093, JP)

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