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Orthogonal Discriminant Analysis for Interactive Pattern Analysis

Yoshihiko HAMAMOTO, Taiho KANAOKA, Shingo TOMITA

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Summary :

In general, a two-dimensional display is defined by two orthogonal unit vectors. In developing the display, discriminant analysis has a shortcoming that the extracted axes are not orthogonal in general. First, in order to overcome the shortcoming, we propose discriminant analysis which provides an orthonormal system in the transformed space. The transformation preserves the discriminatory ability in terms of the Fisher criterion. Second, we present a necessary and sufficient condition that discriminant analysis in the original space provides an orthonormal system. Finally, we investigate the relationship between orthogonal discriminant analysis and the Karhunen-Loeve expansion in the original space.

Publication
IEICE TRANSACTIONS on Information Vol.E75-D No.4 pp.602-605
Publication Date
1992/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Image Processing, Computer Graphics and Pattern Recognition

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