Line recognition method

Details Line recognition method Line recognition method

1980-08-27

1984-01-24

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 22, 382 44, G06K 900

Patent

active

044280777

ABSTRACT:
In a pattern recognition apparatus for recognizing a pattern including a line pattern consisting of a plurality of line segments, there is proposed a line recognition method which comprises steps of: recognizing the coordinates of end points of each of segments constituting a line pattern; employing the coordinates of an end point of a first line segment as base point coordinates; deciding whether the distance between the base point and an end point of a second line segment is less than a certain value or not; employing as a suitable point the end point of the second line segment with said distance being less than the certain value; and selecting a connectable second line segment and connecting said suitable point to the base point of the first line segment.

REFERENCES:
patent: 3805237 (1974-04-01), Cobb et al.
patent: 3848089 (1974-11-01), Stewart
patent: 4092632 (1978-05-01), Agulnek
patent: 4147928 (1979-04-01), Crean et al.
patent: 4249217 (1981-02-01), Korte et al.
patent: 4272756 (1981-06-01), Kakumoto et al.
patent: 4284975 (1981-08-01), Odaka

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