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Off-Line Writer Verification Using Segments of Handwritten Samples and SVM

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13th International Conference on Computational Intelligence in Security for Information Systems (CISIS 2020) (CISIS 2019)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 1267))

Abstract

This works presents a method to verify a person identity based on off-line handwritten strokes analysis. Its main contribution is that the descriptors are obtained from the constitutive segments of each grapheme, in contrast with the complexity of the handwritten images used in signature recognition system or even with the graphemes themselves. In this way, only few handwriting samples taken from a short text could be enough to identify the writer. The descriptor is based on an estimation of the pressure of the stroke grayscale image. In particular, the average of the gray levels on the perpendicular line to the skeleton is used. A semi-automatic procedure is used to extract the segments from scanned images. The repository consists of 3.000 images of 6 different segments. Binary-output Support Vector Machine classifiers are used. Two types of cross validation, K-fold and Leave-one-out, are implemented to objectively evaluate the descriptor performance. The results are encouraging. A hit rate of 98% in identity verification is obtained for the 6 segments studied.

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Author information

Authors and Affiliations

  1. Department of Engineering and Technological Research, Universidad Nacional de La Matanza, Buenos Aires, Argentina

    Verónica Aubin

  2. Institute of Knowledge Technology, University Complutense of Madrid, Madrid, Spain

    Matilde Santos

  3. Department of Computer Science, Universidad Católica del Maule, Talca, Chile

    Marco Mora

Authors
  1. Verónica Aubin
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  2. Matilde Santos
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  3. Marco Mora
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Corresponding author

Correspondence to Matilde Santos .

Editor information

Editors and Affiliations

  1. Grupo de Inteligencia Computacional Aplicada (GICAP), Departamento de Ingeniería Informática, Escuela Politécnica Superior, Universidad de Burgos, Burgos, Spain

    Álvaro Herrero

  2. Grupo de Inteligencia Computacional Aplicada (GICAP), Departamento de Ingeniería Informática, Escuela Politécnica Superior, Universidad de Burgos, Burgos, Spain

    Carlos Cambra

  3. Grupo de Inteligencia Computacional Aplicada (GICAP), Departamento de Ingeniería Informática, Escuela Politécnica Superior, Universidad de Burgos, Burgos, Spain

    Daniel Urda

  4. Technological Institute of Castilla y León, Burgos, Spain

    Javier Sedano

  5. Department of Industrial Engineering, University of A Coruña, La Coruña, Spain

    Héctor Quintián

  6. University of Salamanca, Salamanca, Spain

    Emilio Corchado

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Aubin, V., Santos, M., Mora, M. (2021). Off-Line Writer Verification Using Segments of Handwritten Samples and SVM. In: Herrero, Á., Cambra, C., Urda, D., Sedano, J., Quintián, H., Corchado, E. (eds) 13th International Conference on Computational Intelligence in Security for Information Systems (CISIS 2020). CISIS 2019. Advances in Intelligent Systems and Computing, vol 1267. Springer, Cham. https://doi.org/10.1007/978-3-030-57805-3_6

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