Gap detection in a drawing

Details Gap detection in a drawing Gap detection in a drawing

2005-04-19

2009-11-03

Desire, Gregory M (Department: 2624)

Image analysis

Pattern recognition

C345S441000, C345S469100, C345S581000, C382S178000, C382S267000

Reexamination Certificate

active

07613341

ABSTRACT:
A technique for searching for a gap in a drawing is disclosed. The technique includes sweeping an evaluation line across at least a portion of the drawing, detecting on the evaluation line an endpoint of a first segment, determining a distance from the endpoint to a point on the second segment, comparing the distance to a maximum gap distance, and detecting a gap.

REFERENCES:
patent: 5086481 (1992-02-01), Yoshida et al.
patent: 5179645 (1993-01-01), Tanimori
patent: 5600735 (1997-02-01), Seybold
patent: 5694536 (1997-12-01), Gangnet et al.
patent: 6246793 (2001-06-01), Rindtorff et al.
patent: 2006/0232603 (2006-10-01), Schuster et al.
John D. Hobby, “Practical Segment Intersection with Finite Precision Output”, 1999, Bell Laboratories, pp. 1-17.

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