Image analysis – Histogram processing – For setting a threshold
Patent
1991-05-13
1992-12-15
Mancuso, Joseph
Image analysis
Histogram processing
For setting a threshold
382 48, 358488, G06K 936
Patent
active
051724227
ABSTRACT:
A character segmentation process for skewed documents divides the document bit map into vertical blocks and within each vertical block estimates initial top and bottom bounds of each character in a character row from horizontal projections of the vertical block, thereby avoiding the effects of skew. Operations in the document bit map to compute the exact top, bottom, left and right boundaries of the character are confined within the narrow strip between the initial top and bottom bounds of the character so as to greatly reduce the amount of data fetched from memory during such operations and thereby speed up the segmentation process.
REFERENCES:
patent: 3553437 (1971-01-01), Boothroyd
patent: 4558461 (1985-12-01), Schlang
patent: 4562594 (1985-12-01), Bednar et al.
patent: 4776024 (1988-10-01), Katoh et al.
patent: 4845768 (1989-07-01), Kochert et al.
patent: 4866784 (1989-09-01), Barski
patent: 4926490 (1990-05-01), Mano
patent: 4944505 (1990-07-01), Sherman, III
patent: 4953230 (1990-08-01), Kurose
J. Kim "Baseline Driff Correction of Handwritten Text," IBM Technical Disclosure Bulletin, vol. 25, No. 10 pp. 5111-5114 (1983).
Dugas Edward
Eastman Kodak Company
Jung Yon
Mancuso Joseph
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