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Automatic writer identification from text line images

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Abstract

In the present article, new techniques have been introduced for revealing the individual features of a person’s handwriting pattern from the scanned images of handwritten text lines to facilitate text-independent writer identification. These techniques are aimed at designing a dynamic model which can be formalized according to any handwritten text line. Various combinations of the extracted features are applied to three well known classifiers for evaluating the contribution of features to define the correct identification rate. The K-NN, GMM, and Normal Density Discriminant Function Bayes classifiers are used in the present identification model. The experimental studies are conducted using two datasets obtained from the IAM database. The first dataset has already been proposed and used in the literature, whereas the second dataset is an expanded version of the first dataset and has been constituted for the first time in this study to analyze the performance of the extracted features under conditions such as an increased number of writers to discriminate in the database and a decreased number of text lines per writer. The remarkable identification rates obtained from the three classifiers on both datasets clearly indicate that the proposed feature extraction techniques can be effectively used in writer identification systems.

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Authors and Affiliations

  1. 1st Air Supply and Maintenance Center, Technology and Weapon Systems Development Department, Eskisehir, Turkey

    Önder Kırlı

  2. Electrical and Electronics Engineering Department, Eskişehir Osmangazi University, Batı-Meşelik, 26480, Eskisehir, Turkey

    M. Bilginer Gülmezoğlu

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  1. Önder Kırlı
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  2. M. Bilginer Gülmezoğlu
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Correspondence to Önder Kırlı.

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Kırlı, Ö., Gülmezoğlu, M.B. Automatic writer identification from text line images. IJDAR 15, 85–99 (2012). https://doi.org/10.1007/s10032-011-0161-9

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  • DOI: https://doi.org/10.1007/s10032-011-0161-9

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