Title:
IMAGE PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2023180956
Kind Code:
A
Abstract:
To provide a method for measuring a "cross-sectional meridian direction length" (a length along the contour line of a tire when grooves are ignored) based on a tire cross-sectional image.SOLUTION: An image processing method of an embodiment is a method for processing a tire cross-sectional image and includes: extracting, in the cross-sectional image, an inside contour line representing a tire inner face and an outside contour line representing a tier outer face as contour lines composed of point groups, the outside contour line including grooves; performing expansion processing and contraction processing on the cross-sectional image to fill the grooves in the outside contour line, thereby changing the outside contour line to a smooth line without the grooves; and integrating the distance between adjacent two points on the smooth line to determine the length along the smooth line from a predetermined starting point on the smooth line to a predetermined position on the smooth line.SELECTED DRAWING: Figure 6
Inventors:
NAKAMOTO SATOSHI
HAYASHI YUKI
HAYASHI YUKI
Application Number:
JP2022094655A
Publication Date:
December 21, 2023
Filing Date:
June 10, 2022
Export Citation:
Assignee:
TOYO TIRE CORP
International Classes:
G01N23/046; B60C19/00
Attorney, Agent or Firm:
Patent Attorney Corporation Tsutata Patent Office
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