Interactive drawing recognition processing method and apparatus

Details Interactive drawing recognition processing method and apparatus Interactive drawing recognition processing method and apparatus

1999-04-22

2000-09-12

Mehta, Bhavesh

Image analysis

Pattern recognition

Feature extraction

382309, 345440, G06K 946

Patent

active

061188972

ABSTRACT:
A drawing is read by a scanner to create raster data. A labeling process is executed for the data to extract a contour line for each pattern element resultant from the labeling process to produce contour line data and region data to manage, in a tree structure, information related to a circumscribed rectangle of each line segment of the contour line. When the operator picks by a pointing device a predetermined region on the screen of a display and a pair of line segments for recognition, there is retrieved region data corresponding to the specified region. After extracting contour line data associated with the retrieved region data, a center line creation process is executed according to the extracted contour line data.

REFERENCES:
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patent: 4783829 (1988-11-01), Miyakawa et al.
patent: 4807143 (1989-02-01), Matsuura
patent: 4843569 (1989-06-01), Sawada et al.
patent: 5016007 (1991-05-01), Iihoshi et al.
patent: 5377102 (1994-12-01), Nishiishigaki
patent: 5583949 (1996-12-01), Smith et al.

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