Meltem Ballan

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We present a fast, automated, feature-based technique for classifying fingerprints. The technique extracts the singular points (delta and core points) in fingerprints obtained from directional histograms. The technique enhances the digitized image using adaptive clipping and image matching, finds the directional image by checking the orientations of(More)
  • M. Ballan
  • Proceedings of the IEEE 12th Signal Processing…
  • 2004
In this work, the limited amount of mould images, which are captured by a microscopic camera, are classified. The enhancement algorithms are case dependent, because of the limited amount of data, but with too many classes. Firstly, a preprocessing algorithm is applied to enhance the data and then the features are extracted from enhanced data. Finally,(More)
For well over one-hundred years, several key factors have been well established in the study of number comparison, including mental number line, numerical distance effect, and effect of sensory representation on number processing. The purpose of this article is to put some of these studies together to discuss design parameters and research questions(More)
INFN, Laboratori Nazionali di Legnaro, Legnaro (Padova), Italy; Dipartimento di Ingegneria Industriale dell’Università di Padova, Padova, Italy; Dipartimento di Scienze del Farmaco dell’Università di Padova, Padova, Italy; Dipartimento di Fisica e Scienze della Terra dell’Università di Ferrara, Ferrara, Italy; Dipartimento di Tecnica e Gestione dei Sistemi(More)
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