Offline recognition of unconstrained handwritten texts using HMMs and statistical language models

Bunke, H., Bengio, S. and Vinciarelli, A. (2004) Offline recognition of unconstrained handwritten texts using HMMs and statistical language models. IEEE Transactions on Pattern Analysis and Machine Intelligence, 26(6), pp. 709-720. (doi:10.1109/TPAMI.2004.14)

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Publisher's URL: http://dx.doi.org/10.1109/TPAMI.2004.14

Abstract

This paper presents a system for the offline recognition of large vocabulary unconstrained handwritten texts. The only assumption made about the data is that it is written in English. This allows the application of statistical language models in order to improve the performance of our system. Several experiments have been performed using both single and multiple writer data. Lexica of variable size (from 10,000 to 50,000 words) have been used. The use of language models is shown to improve the accuracy of the system (when the lexicon contains 50,000 words, the error rate is reduced by ∼50 percent for single writer data and by ∼25 percent for multiple writer data). Our approach is described in detail and compared with other methods presented in the literature to deal with the same problem. An experimental setup to correctly deal with unconstrained text recognition is proposed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Vinciarelli, Professor Alessandro
Authors: Bunke, H., Bengio, S., and Vinciarelli, A.
College/School:College of Science and Engineering > School of Computing Science
Journal Name:IEEE Transactions on Pattern Analysis and Machine Intelligence
ISSN:0162-8828

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