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Proceedings Paper

Separation algorithm of superimposed pattern using directional decomposition of an image
Author(s): Misako Suwa; Satoshi Naoi
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Paper Abstract

To recognize a handwritten check mark on a pre-printed character with OCR, we need to separate the pre-print and the superimposed check mark. By the previous method, an unmarked form image and marked one are matched and overlapping part is removed. Then the remaining pattern is regarded as a superimposed mark pattern. Therefore when the mark pattern and the pre-print is overlapped, the overlapping part is removed with the pre-print. It sometimes causes a decision error of the existence of the check mark. In this paper, we propose a new method to separate a superimposed pattern to preprints using directional decomposition of an image for precise recognition of the check mark.

Paper Details

Date Published: 13 January 2003
PDF: 8 pages
Proc. SPIE 5010, Document Recognition and Retrieval X, (13 January 2003); doi: 10.1117/12.476041
Show Author Affiliations
Misako Suwa, Fujitsu Labs. Ltd. (Japan)
Satoshi Naoi, Fujitsu Labs. Ltd. (Japan)

Published in SPIE Proceedings Vol. 5010:
Document Recognition and Retrieval X
Tapas Kanungo; Elisa H. Barney Smith; Jianying Hu; Paul B. Kantor, Editor(s)

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