Image analysis – Image segmentation
Patent
1994-05-18
1996-03-26
Boudreau, Leo
Image analysis
Image segmentation
382183, 382190, G06K 934
Patent
active
055027776
ABSTRACT:
There is disclosed method and apparatus for recognizing a table and a figure drawn in a recognized document even though there are many intersections formed on each of lateral and longitudinal lines drawn in the figure. Figures and tables drawn in the recognized are read, and circumscribed rectangles circumscribed about the figures and the tables are detected. A circumscribed rectangle in which a larger value between the number of lateral lines and the number of longitudinal lines is not higher than a prescribed value or a maximum value among intersection numbers which each correspond to the number of intersections formed on one of the lateral and longitudinal lines is not higher than a prescribed value is extracted as a circumscribed figure-rectangle circumscribed about one of the figures. A circumscribed rectangle in which a ratio of the number N.sub.P1 of black pixels composing lateral lines and longitudinal lines to the number N.sub.P2 of black pixels combined with each other is not higher than a prescribed value is extracted as another circumscribed figure-rectangle circumscribed about one of the figures. A circumscribed rectangle in which the ratio is higher than the prescribed value is extracted as a circumscribed table-rectangle circumscribed about one of the tables.
REFERENCES:
patent: 4750209 (1988-06-01), Shimura et al.
patent: 5136658 (1992-08-01), Mori
patent: 5144682 (1992-09-01), Nakamura
patent: 5195147 (1993-03-01), Ohta
patent: 5228100 (1993-07-01), Takeda et al.
patent: 5235653 (1993-08-01), Nakano et al.
Boudreau Leo
Do Anh Hong
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Method and apparatus for recognizing table and figure having man does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for recognizing table and figure having man, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for recognizing table and figure having man will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-922130