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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2011/070750
Kind Code:
Boundary lines, which are the contours of indentation marks, are detected in a sample original image, which is a two-dimensional image of the sidewall surface of a sample tyre, and a mask image displaying the location of the boundary lines is generated. Then a height offset image, which displays the height of the indentation marks, is generated by using a plurality of discrete height thresholds to classify the height of regions in the sample original image which remain when the regions corresponding to the locations of boundary lines shown on the mask image are excluded. An image from which the indentations have been extracted is then generated by removing the indentation marks from an inspection image, which is a two-dimensional image of the sidewall of a tyre to be inspected, by deducting the height offset image from the inspection image. Shape irregularities in the side wall of the tyre to be tested are detected on the basis of the indentation extracted image.

TAKAHASHI, Eiji (())
高橋 英二 (())
SAKODA, Naokazu (())
迫田 尚和 (())
TSUJI, Toshiyuki (())
Application Number:
Publication Date:
June 16, 2011
Filing Date:
December 02, 2010
Export Citation:
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KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 〒6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町2丁目10番26号 Hyogo, 〒6518585, JP)
TAKAHASHI, Eiji (())
高橋 英二 (())
SAKODA, Naokazu (())
迫田 尚和 (())
International Classes:
G01B11/24; B60C19/00; G01N21/88
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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