Human face verification based on multidimensional polynomial powers of sigmoid (PPS)

Marar, João Fernando [UNESP]; Coelho, Helder

Human face verification based on multidimensional polynomial powers of sigmoid (PPS)

Date

2008-12-17

Authors

Marar, João Fernando

Coelho, Helder

Type

Work presented at event

Abstract

In this paper, we described how a multidimensional wavelet neural networks based on Polynomial Powers of Sigmoid (PPS) can be constructed, trained and applied in image processing tasks. In this sense, a novel and uniform framework for face verification is presented. The framework is based on a family of PPS wavelets,generated from linear combination of the sigmoid functions, and can be considered appearance based in that features are extracted from the face image. The feature vectors are then subjected to subspace projection of PPS-wavelet. The design of PPS-wavelet neural networks is also discussed, which is seldom reported in the literature. The Stirling Universitys face database were used to generate the results. Our method has achieved 92 % of correct detection and 5 % of false detection rate on the database.

Keywords

Activation functions, Artificial neural network, Feedforward networks, Human face verification, Polynomial powers of sigmoid (PPS), Pps-wavelet neural networks, Wavelets functions