Method and arrangement for detecting surface and structural...

Details Method and arrangement for detecting surface and structural... Method and arrangement for detecting surface and structural...

2011-06-28

2011-06-28

Mariam, Daniel G (Department: 2624)

Image analysis

Applications

Manufacturing or product inspection

Reexamination Certificate

active

07970202

ABSTRACT:
A method for detecting defects of a material moving in a rolling mill generally comprises illuminating product, obtaining (ACQ) image thereof in at least one spectral band, in pre-processing the formed image, in detecting and extracting (DTEXTR) eventually suspected areas of the pre-processed image, and in classifying (CLASS) the suspected areas into one or several defect or defect-free categories. For hot-rolled materials, the product is inspected in three disjointed spectral bands, including infrared, red and, for instance, green band in such a way that the suspected areas are classified into one or several defect-free or defect categories including the surface and structural defects.

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