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Proceedings Paper

Pattern recognition of transillumination images for diagnosis of rheumatoid arthritis
Author(s): Joanna Bauer; Ewa Boerner; Halina Podbielska; Artur Suchwalko
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Paper Abstract

In this work the statistical pattern recognition methods were applied for evaluation of transillumination images of interphalangeal joints of patients suffering from rheumatoid arthritis. Special portable apparatus was constructed for performing the transillumination examination. It consisted of He-Ne laser with optics for collimated illumination, special holder for placing the finger (perpendicular to optical axis, dorsal site towards camera), and CCD camera with memory stick. 20 ill patients and 20 healthy volunteers were examined. The captured images with 1152x864 resolution were converted into the gray level pictures and analyzed by means of statistical pattern recognition method. Principal Component Analysis (PCA) and cluster analysis by use of 1-NN method (1 Nearest Neighbour) were applied for classification. The recognition system was able to differentiate correctly between healthy and ill subjects with 72.35% accuracy in case the data base composed of 40 persons.

Paper Details

Date Published: 23 September 2005
PDF: 6 pages
Proc. SPIE 5959, Medical Imaging, 595905 (23 September 2005); doi: 10.1117/12.622552
Show Author Affiliations
Joanna Bauer, Wroclaw Univ. of Technology (Poland)
Ewa Boerner, Univ. of Physical Education (Poland)
Halina Podbielska, Wroclaw Univ. of Technology (Poland)
Artur Suchwalko, Wroclaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5959:
Medical Imaging
Andrzej Kowalczyk; Adolf F. Fercher; Valery V. Tuchin, Editor(s)

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