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Face Recognition Using Symbolic KPCA Plus Symbolic LDA in the Framework of Symbolic Data Analysis: Symbolic Kernel Fisher Discriminant Method
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Face Recognition Using Symbolic KPCA Plus Symbolic LDA in the Framework of Symbolic Data Analysis: Symbolic Kernel Fisher
Discriminant Method
P. S. Hiremath6 and C. J. Prabhakar7 
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Department of Studies in Computer Science, Gulbarga University, Gulbarga, 585106, Karnataka, India |
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Department of Studies in Computer Science, Kuvempu University, Shankaraghatta, 577451, Karnataka, India |
Abstract
In this paper we present a new approach called as symbolic kernel Fisher discriminant analysis (symbolic KFD) for face recognition
based on symbolic kernel principal component analysis (symbolic KPCA) and symbolic linear discriminant analysis (symbolic
LDA) in the framework of symbolic data analysis. It is well known that the distribution of face images, under a perceivable
variation in view point, illumination and facial expression is highly nonlinear and complex. The linear techniques based on
symbolic LDA cannot provide reliable and robust solutions to such face recognition problems because these techniques fail
to capture a non-linear relationship with linear mapping. However, proposed symbolic KFD method overcomes this limitation
by using kernel trick to represent complicated nonlinear relations of input data. The classical KFD method uses single valued
variables to represent the facial features, where as, the proposed symbolic KFD extract interval type non linear discriminating
features, which are robust due to varying facial expression, view point and illumination. The new algorithm has been successfully
tested using three databases, namely, Yale Face database and Yale Face database B. The experimental results show that symbolic
KFD outperforms other KFD algorithms.
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