Data Reduction In Classification Of 3-D Brain Images In The Schizophrenia Research
| Authors | |
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| Year of publication | 2010 |
| Type | Article in Proceedings |
| Conference | Analysis of Biomedical Signals and Images, Biosignal-Brno |
| MU Faculty or unit | |
| Citation | JANOUŠOVÁ, Eva, Daniel SCHWARZ and Tomáš KAŠPÁREK. Data Reduction In Classification Of 3-D Brain Images In The Schizophrenia Research. In Jan, J; Jirik, R; Kolar, R; Kolarova, J; Kozumplik, J; Provaznik, I. Analysis of Biomedical Signals and Images, Biosignal-Brno. Brno, Czech Republic: Brno University of Technology VUT Press, 2010, p. 69-74. ISBN 978-80-214-4106-4. |
| web | http://www.biosignal.cz |
| Field | Neurology, neurosurgery, neurosciences |
| Keywords | Principal Component Analysis; Classification; MRI; Computational Neuroanatomy; Schizophrenia |
| Description | Multidimensional image data are usually reduced during preprocessing to lower high computational requirements and to cope with the well-known small sample size problem in the huge data analysis. Two reduction methods based on principal component analysis (PCA) are compared and further modified here to be used in classification of 3-D MRI brain images of first-episode schizophrenia patients and healthy controls. The first reduction method is the two-dimensional principal component analysis (2DPCA) and the second one is the PCA based on covariance matrix of persons (pPCA). The classification efficiency of data reduced by 2DPCA and pPCA are compared while using various input image data and two classification methods – the centroid method and the average linkage method. |
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