Title:
ひび割れ検出方法とひび割れ検出装置、及びプログラム
Document Type and Number:
Japanese Patent JP7499210
Kind Code:
B2
Abstract:
To provide a crack detection method, a crack detection device, and a program that can detect and output a crack on a pixel-by-pixel basis, and detect and output cracks having relationship that can be determined to be a continuous crack by nature as cracks with the same label.SOLUTION: A crack detection method includes the steps of input image creation, wavelet image creation, binarized image creation, crack image creation, and segmentation image creation. The segmentation image creation step includes: an endpoint-to-endpoint distance identifying step of identifying an endpoint-to-endpoint distance between endpoints of cracks that are separated from each other; a determination step of determining that two cracks are a continuous crack by nature and cracks of the same label when the distance between the endpoints is equal to or less than a threshold value; and a drawing step of creating a segmentation image by connecting the endpoints of the two cracks determined to be the cracks with the same label.SELECTED DRAWING: Figure 4
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Inventors:
Masami Motozawa
Kenichi Horiguchi
Nomura
Kenichi Horiguchi
Nomura
Application Number:
JP2021073888A
Publication Date:
June 13, 2024
Filing Date:
April 26, 2021
Export Citation:
Assignee:
Taisei Corporation
International Classes:
G01N21/88; G06T7/00; G06T7/12
Domestic Patent References:
| JP2012002531A | ||||
| JP2021018676A | ||||
| JP2000028541A | ||||
| JP2017072517A | ||||
| JP2021051597A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito