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Proceedings Paper

Online computation of similarity between handwritten characters
Author(s): Oleg Golubitsky; Stephen M. Watt
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Paper Abstract

We are interested in the problem of curve identification, motivated by problems in handwriting recognition. Various geometric approaches have been proposed, with one of the most popular being "elastic matching." We examine the problem using distances defined by inner products on functional spaces. In particular we examine the Legendre and Legendre-Sobolev inner products. We show that both of these can be computed in online constant time. We compare both with elastic matching and conclude that the Legendre-Sobolev distance measure provides a competitive alternative to elastic matching, being almost as accurate and much faster.

Paper Details

Date Published: 19 January 2009
PDF: 10 pages
Proc. SPIE 7247, Document Recognition and Retrieval XVI, 72470C (19 January 2009); doi: 10.1117/12.806163
Show Author Affiliations
Oleg Golubitsky, The Univ. of Western Ontario (Canada)
Stephen M. Watt, The Univ. of Western Ontario (Canada)

Published in SPIE Proceedings Vol. 7247:
Document Recognition and Retrieval XVI
Kathrin Berkner; Laurence Likforman-Sulem, Editor(s)

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