Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model

Cursive handwriting is the most natural way for humans to communicate and record information. The developments of automatic systems that are capable of recognizing human handwritings offer a new way of improving human-computer interface and of enabling computers to perform repetitive tasks of readin...

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Main Author:	Tay, Yong Haur
Format:	Thesis
Language:	English
Published:	2002
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/4393/1/TayYongHaurPFKE2002.pdf
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id	my-utm-ep.4393
record_format	uketd_dc
spelling	my-utm-ep.43932018-01-28T05:56:18Z Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model 2002-03-13 Tay, Yong Haur TK Electrical engineering. Electronics Nuclear engineering QA75 Electronic computers. Computer science Cursive handwriting is the most natural way for humans to communicate and record information. The developments of automatic systems that are capable of recognizing human handwritings offer a new way of improving human-computer interface and of enabling computers to perform repetitive tasks of reading and processing handwritten documents more efficiently. The aim of this thesis is to design an offline handwritten word recognition system based on the hybrid of Artificial Neural Network (ANN) and Hidden Markov Model (HMM). The Input space segmentation (INSEG) approach proposes various ways to segment word into characters. This approach creates the problem of junks - character hypotheses that are not true characters. Two training approaches have been introduced, namely character level discriminant training and word-level discriminant training. The latter shows integration of the ANN and HMM by using the gradient descent algorithm. Different topologies of the ANN have been investigated for modeling of junks. Three isolated word databases, namely, IRONOFF, AWS and SRTP, have been used as the evaluation of the proposed system. Experimental results have shown that the ANN-HMM hybrid with word-level discriminant training consistently yield better recognition accuracy compared to character level discriminant training and discrete HMM-based recognition system. It achieves recognition accuracy of 97.3%, 88.4%, 90.5% and 95.8%, on IRONOFF-1 96, IRONOFF-1 991, SRTP-Cheque, and AWS, respectively. 2002-03 Thesis http://eprints.utm.my/id/eprint/4393/ http://eprints.utm.my/id/eprint/4393/1/TayYongHaurPFKE2002.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering Tay, Yong Haur Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
description	Cursive handwriting is the most natural way for humans to communicate and record information. The developments of automatic systems that are capable of recognizing human handwritings offer a new way of improving human-computer interface and of enabling computers to perform repetitive tasks of reading and processing handwritten documents more efficiently. The aim of this thesis is to design an offline handwritten word recognition system based on the hybrid of Artificial Neural Network (ANN) and Hidden Markov Model (HMM). The Input space segmentation (INSEG) approach proposes various ways to segment word into characters. This approach creates the problem of junks - character hypotheses that are not true characters. Two training approaches have been introduced, namely character level discriminant training and word-level discriminant training. The latter shows integration of the ANN and HMM by using the gradient descent algorithm. Different topologies of the ANN have been investigated for modeling of junks. Three isolated word databases, namely, IRONOFF, AWS and SRTP, have been used as the evaluation of the proposed system. Experimental results have shown that the ANN-HMM hybrid with word-level discriminant training consistently yield better recognition accuracy compared to character level discriminant training and discrete HMM-based recognition system. It achieves recognition accuracy of 97.3%, 88.4%, 90.5% and 95.8%, on IRONOFF-1 96, IRONOFF-1 991, SRTP-Cheque, and AWS, respectively.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Tay, Yong Haur
author_facet	Tay, Yong Haur
author_sort	Tay, Yong Haur
title	Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
title_short	Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
title_full	Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
title_fullStr	Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
title_full_unstemmed	Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model
title_sort	offline handwriting recognition using artificial neural network and hidden markov model
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2002
url	http://eprints.utm.my/id/eprint/4393/1/TayYongHaurPFKE2002.pdf
_version_	1747814524585508864

Offline handwriting recognition using Artificial Neural Network and Hidden Markov Model

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