Separation algorithm of superimposed pattern using directional decomposition of an image

Misako Suwa; Satoshi Naoi

doi:10.1117/12.476041

13 January 2003 Separation algorithm of superimposed pattern using directional decomposition of an image

Misako Suwa, Satoshi Naoi

Author Affiliations +

Proceedings Volume 5010, Document Recognition and Retrieval X; (2003) https://doi.org/10.1117/12.476041
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

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.

Citation Download Citation

Misako Suwa and Satoshi Naoi "Separation algorithm of superimposed pattern using directional decomposition of an image", Proc. SPIE 5010, Document Recognition and Retrieval X, (13 January 2003); https://doi.org/10.1117/12.476041

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE