NDLI: Offline Handwriting Recognition Using Invariant Moments and Curve Let Transform with Combined SVM-HMM Classifier

Content Provider	IEEE Xplore Digital Library
Author	Kumawat, P. Khatri, A. Nagaria, B.
Copyright Year	2013
Description	Author affiliation: Dept. of Elex & Commun. Eng, Mandsaur Inst. of Technol., Mandsaur, India (Nagaria, B.) \|\| Dept. of Comput. Sci. & Eng., Medicaps Inst. of Technol., Indore, India (Khatri, A.) \|\| Comput. Sci. & Eng., Medicaps Inst. of Technol., Indore, India (Kumawat, P.)
Abstract	Offline Handwriting recognition is considered as important research field in the filed of forensic and biometric applications. It finds significance in fields like graphology which exploits the physiological behavior of the person based on the handwriting. There are several algorithms for Handwriting recognition. However none of the techniques is yet proved to be satisfactory especially for large number of classes. This is due to the fact that handwriting is a pattern which differs from instance to instance of the same writer. Hence HMM is most preferred technique in this domain. It is due to the fact the HMM produces good result for large number of statistical patterns. However, the performance of the system depends entirely on the feature vectors. Unlike the cases of usual patter recognition like face recognition, a user's training and test sample may vary. Hence recognition of the same is tough. Therefore in this work we propose a novel technique for offline handwriting recognition based on Invariant Moments and curve let transform. Curve let transform and Invariant moments are used predominantly for character recognition problem and hence are more suitable for the work. Further we compare the performance of HMM based technique with SVM based technique and found that for some patterns, the efficiency of SVM classifier is better than that of HMM and performance of HMM is better than HMM in some cases. Hence we develop a combined classifier and prove that the system performs better than both independent HMM and SVM classifier.
Sponsorship	IEEE India Council MTT Chapt.
Starting Page	144
Ending Page	148
File Size	285432
Page Count	5
File Format	PDF
ISBN	9781467356039
e-ISBN	9781467356039
DOI	10.1109/CSNT.2013.40
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-06
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Support vector machines Training Handwriting recognition Support vector machine (SVM) Accuracy Hidden markov modal (HMM) Hidden Markov models Thresholding Transforms HMM-SVM classifier Feature extraction Curvelet transform
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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