INVESTIGADORES
ROSSO Osvaldo Anibal
artículos
Título:
Classification and Verification of Handwritten Signatures with Time Causal Information Theory Quantifiers
Autor/es:
O. A. ROSSO; R. OSPINA; A. C. FRERY
Revista:
PLOS ONE
Editorial:
PUBLIC LIBRARY SCIENCE
Referencias:
Lugar: San Francisco; Año: 2016 vol. 11 p. 1 - 19
ISSN:
1932-6203
Resumen:
We present a new approach for handwritten signature classification and verification based on descriptors stemming from time causal information theory. The proposal uses the Shannon entropy, the statistical complexity, and the Fisher information evaluated over the Bandt and Pompe symbolization of the horizontal and vertical coordinates of signatures. These six features are easy and fast to compute, and they are the input to an One-Class Support Vector Machine classifier. The results are better than state-of-the-art online techniques that employ higher-dimensional feature spaces which often require specialized software and hardware. We assess the consistency of our proposal with respect to the size of the trainingsample, and we also use it to classify the signatures into meaningful groups.