Method and apparatus for vectorizing documents and symbol recogn

Details Method and apparatus for vectorizing documents and symbol recogn Method and apparatus for vectorizing documents and symbol recogn

1986-04-10

1988-07-19

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 34, G06K 962

Patent

active

047590750

ABSTRACT:
The invention in a preferred embodiment recognizes symbols by determining the center of mass and maximum extremity of a symbol candidate, and comparing it to a reference library after normalizing with respect to scale, orientation and center of mass.

REFERENCES:
patent: 4284975 (1981-08-01), Odaka
patent: 4435837 (1984-03-01), Abernathy
patent: 4440513 (1984-04-01), Kataoka et al.
patent: 4658428 (1987-04-01), Bedros et al.

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