Morphological hand-printed character recognition by a skeleton-matching algorithm

Panagiotis E. Trahanias; Konstantinos Stathatos; Fotios Stamatelopoulos; Emmanuel Skordalakis

doi:10.1117/12.143731

1 April 1993 Morphological hand-printed character recognition by a skeleton-matching algorithm

Panagiotis E. Trahanias, Konstantinos Stathatos, Fotios Stamatelopoulos, Emmanuel Skordalakis

Author Affiliations +

Journal of Electronic Imaging, Vol. 2, Issue 2, (April 1993). https://doi.org/10.1117/12.143731

Abstract

We study the use of mathematical morphology for handprinted character recognition. Our approach uses the morphological skeleton transform as the shape descriptor. An efficient skeleton-matching algorithm, which renders the similarity between two skeletons as a distance measure, is employed. Based on this distance measure, a character is classified by a minimum distance classifier. The morphological skeleton transform contains complete shape information and is shown as a powerful descriptor for this class of shapes. We also study the pattern spectrum as a shape descriptor for handprinted characters. However, the pattern spectrum conveys only information about the shape/size distribution of a given object, which turns out to be not very efficient for hand-printed characters. Experimental results demonstrate the efficiency of the skeleton-based approach and the inadequacy of the pattern-spectrum-based approach.

Citation Download Citation

Panagiotis E. Trahanias, Konstantinos Stathatos, Fotios Stamatelopoulos, and Emmanuel Skordalakis "Morphological hand-printed character recognition by a skeleton-matching algorithm," Journal of Electronic Imaging 2(2), (1 April 1993). https://doi.org/10.1117/12.143731

Published: 1 April 1993

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

Includes PDF, HTML & Video, when available