Strand dimension sensing

Details Strand dimension sensing Strand dimension sensing

1995-12-15

1998-07-14

Kelley, Christopher

Image analysis

Applications

Manufacturing or product inspection

382108, 382257, 382286, 348135, G06K 952

Patent

active

057816557

ABSTRACT:
Strand dimension of selected strands in a layup of strands is determined by obtaining a pixel image, analyzing the pixel image to define candidate strands to be measured and their location within the image and reprocessing the image to find the opposite end points of the candidate strands and their end edges by finding areas of appropriate dimension and substantially free of edge pixels to define a strand to be examined ("magic" strand) and then determining the length and/or width of the "magic" strand.

REFERENCES:
patent: 4591995 (1986-05-01), Schurch
patent: 4791481 (1988-12-01), Verdiere et al.
patent: 4887155 (1989-12-01), Massen
patent: 5179419 (1993-01-01), Palmquist
patent: 5430808 (1995-07-01), Baird et al.
patent: 5436980 (1995-07-01), Weeks et al.
Ze-Nian Li and Danpo Zhang, "Fast Line Detection in a Hybrid Pyramid", Proceedings of Vision Interface '92, pp. 143-150, Vancouver, B.C., May 1992.

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