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2003
ACM

PCA vs low resolution images in face verification

10 years 5 days ago
PCA vs low resolution images in face verification
Principal Components Analysis (PCA) has been one of the most applied methods for face verification using only 2D information, in fact, PCA is practically the method of choice for applications of face verification in real-world. An alternative method to reduce the problem dimension is working with low resolution images. In our experiments three classifiers have been considered to compare the results achieved using PCA versus the results obtained using low resolution images. An initial set of located faces has been used for PCA matrix computation and for training all classifiers. The images belonging to the testing set were chosen to be different from the training ones. Classifiers considered are k-nearest neighbours (KNN), artificial neural networks: radial basis function (RBF) and Support Vector Machine (SVM). Results show that SVM always achieves better results than the other classifiers. With SVM correct verification difference between PCA and low resolution processing is only a 0.1...
Cristina Conde, Antonio Ruiz, Enrique Cabello
Added 06 Jul 2010
Updated 06 Jul 2010
Type Conference
Year 2003
Where ICIAP
Authors Cristina Conde, Antonio Ruiz, Enrique Cabello
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