Patent ID: 11922615
Assignee: CANON KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A non-transitory computer-readable medium storing a program which, when executed by a computer comprising a processor and a memory, causes the computer to perform a method comprising:
(1) detecting a crack region using a local feature extracted from each of positions in an input image obtained by image capturing of a structure;
(2) deriving a line component indicating positions of a plurality of cracks by thinning the crack region;
(3) individually specifying the plurality of cracks by deriving a line component indicating a position of an individual crack of the plurality of cracks by dividing the line component indicating positions of the plurality of cracks in accordance with changes in direction of the line component indicating positions of the plurality of cracks;
(4) extracting a feature pertaining to a partial image of a defect from the input image, on the basis of the specified plurality of cracks; and
(5) determining an attribute of the defect using the feature pertaining to the partial image of the defect.