On selecting Gabor features for biometric authentication
Loris Nanni, Alessandra Lumini · International Journal of Computer Applications in Technology · 2009
We describe a Gabor feature selection technique that allows us to develop a fast and robust Gabor-feature based biometric system. Existing Gabor based methods use a huge number of Gabor features to represent the patterns. Our experiments on different biometric characteristics show that by using only few (∼10) Gabor features, it is possible to achieve a very low Equal Error Rate (EER). Only a low number of Gabor filters and sub-images, selected by running the Sequential Forward Floating Selection (SFFS), are exploited in the fusion step. The system has been tested on two biometric traits: ear authentication and finger authentication.