Pattern extracting device and method to extract a pattern from a

Details Pattern extracting device and method to extract a pattern from a Pattern extracting device and method to extract a pattern from a

1996-03-01

1999-03-30

Johns, Andrew W.

Image analysis

Image segmentation

Segmenting individual characters or words

382275, G06K 936

Patent

active

058898875

ABSTRACT:
A character box extracting unit extracts a line forming a character box. Then, the character box intersection calculating unit calculates the intersection of the character box with a character pattern. An intersection corresponding unit associates intersections with each other based on the directional property of character lines, distance between the character lines, etc. An in-box character extracting unit extracts a virtual image according to the association information between the intersections. A character size evaluating unit obtains from an optional character string an average character size of a character including the virtual image, and extracts a true character pattern by removing a redundant virtual image based on the average character size. A character structure analyzing and evaluating unit obtains from a prepared table a true image corresponding to the virtual image and extracts a true character pattern, thereby correctly extracting the pattern from the image in which the line crosses the pattern.

REFERENCES:
patent: 3201752 (1965-08-01), Rabinow
patent: 4292622 (1981-09-01), Henrichon, Jr.
patent: 4633502 (1986-12-01), Namba
patent: 4741045 (1988-04-01), Denning

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