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Devanagari ancient documents recognition using statistical feature extraction techniques

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Abstract

Devanagari ancient document recognition process is drawing a lot of consideration from researchers nowadays. These ancient documents contain a wealth of knowledge. However, these documents are not available to all because of their fragile condition. A Devanagari ancient manuscript recognition system is designed for digital archiving. This system includes image binarization, character segmentation and recognition phases. It incorporates automatic recognition of scanned and segmented characters. Segmented characters may include basic characters (vowels and consonants), modifiers (matras) and various compound characters (characters formed by joining more than one basic characters). In this paper, handwritten Devanagari ancient manuscripts recognition system has been presented using statistical features extraction techniques. In feature extraction phase, intersection points, open endpoints, centroid, horizontal peak extent and vertical peak extent features are extracted. For classification, Convolutional Neural Network, Neural Network, Multilayer Perceptron, RBF-SVM and random forest techniques are considered in this work. Various feature extraction and classification techniques are considered and compared to the recognition of basic characters segmented from Devanagari ancient manuscripts. A data set, of 6152 pre-segmented samples of Devanagari ancient documents, is considered for experimental work. Authors have achieved 88.95% recognition accuracy using a combination of all features and a combination of all classifiers considered in this work by a simple majority voting scheme.

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Authors and Affiliations

  1. Department of Computer Science, DAV College, Abohar, India

    Sonika Narang

  2. Department of Computer Science and Applications, Panjab University Regional Centre, Muktsar, India

    M K Jindal

  3. Department of Computational Sciences, Maharaja Ranjit Singh Punjab Technical University, Bathinda, India

    Munish Kumar

Authors
  1. Sonika Narang
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  2. M K Jindal
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  3. Munish Kumar
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Corresponding author

Correspondence to Munish Kumar.

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Narang, S., Jindal, M.K. & Kumar, M. Devanagari ancient documents recognition using statistical feature extraction techniques. Sādhanā 44, 141 (2019). https://doi.org/10.1007/s12046-019-1126-9

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  • DOI: https://doi.org/10.1007/s12046-019-1126-9

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