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Cited by 334

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Handwritten Numeral Databases of Indian Scripts and Multistage Recognition of Mixed Numerals

Bhattacharya, U., Chaudhuri, B.B.·2009·IEEE Transactions on Pattern Analysis and Machine Intelligence

Abstract

This article primarily concerns the problem of isolated handwritten numeral recognition of major Indian scripts. The principal contributions presented here are (a) pioneering development of two databases for handwritten numerals of two most popular Indian scripts, (b) a multistage cascaded recognition scheme using wavelet based multiresolution representations and multilayer perceptron classifiers and (c) application of (b) for the recognition of mixed handwritten numerals of three Indian scripts Devanagari, Bangla and English. The present databases include respectively 22,556 and 23,392 handwritten isolated numeral samples of Devanagari and Bangla collected from real-life situations and these can be made available free of cost to researchers of other academic Institutions. In the proposed scheme, a numeral is subjected to three multilayer perceptron classifiers corresponding to three coarse-to-fine resolution levels in a cascaded manner. If rejection occurred even at the highest resolution, another multilayer perceptron is used as the final attempt to recognize the input numeral by combining the outputs of three classifiers of the previous stages. This scheme has been extended to the situation when the script of a document is not known a priori or the numerals written on a document belong to different scripts. Handwritten numerals in mixed scripts are frequently found in Indian postal mails and table-form documents.

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Metadata

Authors
Bhattacharya, U., & Chaudhuri, B. B.
Venue
IEEE Transactions on Pattern Analysis and Machine Intelligence
Published
2009-03
Volume
31
Issue
3
Pages
444-457
ISSN
0162-8828 (ISSN-L)
OpenAlex
W2138270545
Cited by
334
References
28
FWCI
17.59
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Handwritten Numeral Databases of Indian Scripts and Multistage Recognition of Mixed Numerals. https://app.cochat.ai/papers/10.1109/tpami.2008.88
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Bhattacharya, U., & Chaudhuri, B. B. (2009). Handwritten Numeral Databases of Indian Scripts and Multistage Recognition of Mixed Numerals. IEEE Transactions on Pattern Analysis and Machine Intelligence. https://doi.org/10.1109/tpami.2008.88

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