A curvature-based multiresolution automatic karyotyping system |
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Authors: | Cristina Urdiales García Antonio Bandera Rubio Fabián Arrebola Pérez Francisco Sandoval Hernández |
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Affiliation: | (1) Departamento Tecnología Electrónica, E.T.S.I. Telecomunicación, Universidad de Málaga, Campus de Teatinos, 29071 Málaga, Spain , ES |
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Abstract: | This paper presents a method to segment, characterise and pair a set of chromosomes in a cell of an eukaryotic organism. This method yields several new features: (i) chromosomes are captured at non-uniform resolution to minimise the problem instance; (ii) segmentation is adaptively conducted by means of a hierarchical structure in a fast way; (iii) the curvature of each chromosome is studied at high resolution by means of attentive steps; (iv) a very short and uncorrelated feature vector is extracted from curvature by analysing its spectral components; and (v) a multistage benchmark classifier is used to pair chromosomes according to shape and banding. The method has been tested with publicly available databases. Results were successfully compared to manual karyotypes. Received: 26 June 2000 / Accepted: 4 December 2001 Published online: 3 June 2003 Correspondence to: Cristina Urdiales García (e-mail: cris@dte.uma.es, Tel.: +34-952-132757, Fax: +34-952-131447) |
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Keywords: | : Karyotyping - Analysis of chromosomes - Multiresolution images - Curvature function - Chromosome classification |
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