Boots – shoes – and leggings
Patent
1982-05-03
1985-05-21
Thomas, James D.
Boots, shoes, and leggings
364469, 382 22, 382 54, G06F 1520, G06F 1546, G06G 748
Patent
active
045190410
ABSTRACT:
A method and apparatus relating to the real time automatic detection and classification of characteristic type surface imperfections occurring on the surfaces of material of interest such as moving hot metal slabs produced by a continuous steel caster. A data camera transversely scans continuous lines of such a surface to sense light intensities of scanned pixels and generates corresponding voltage values. The voltage values are converted to corresponding digital values to form a digital image of the surface which is subsequently processed to form an edge-enhanced image having scan lines characterized by intervals corresponding to the edges of the image. The edge-enhanced image is thresholded to segment out the edges and objects formed by the edges are segmented out by interval matching and bin tracking. Features of the objects are derived and such features are utilized to classify the objects into characteristic type surface imperfections.
REFERENCES:
patent: 4097845 (1978-06-01), Bacus
patent: 4131490 (1978-12-01), Oishi et al.
patent: 4223346 (1980-09-01), Neiheisel et al.
patent: 4361830 (1982-11-01), Honma et al.
patent: 4403294 (1983-09-01), Hamada et al.
Fant Karl M.
Fundakowski Richard A.
Levitt Tod S.
Overland John E.
Suresh Bindinganavle R.
Easton Wayne B.
Honeywell Inc.
Mersereau Charles G.
Shaw Dale M.
Thomas James D.
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