Iris feature extraction algorithm based on odd symmetry 2D Log-Gabor
Yang Tao · Journal of Computer Applications · 2009
When 2D Log-Gabor extracted iris features,part of them are non-effective.Aiming at solving this problem,a new algorithm using odd symmetry 2D Log-Gabor filter to extract iris feature was proposed.Based on the study of odd symmetry 2D Log-Gabor filter,this paper analyzed the phase position and amplitude of iris texture in different frequency and directions,and eliminated redundant feature by feature integration.This algorithm solves the defects of 2D Log-Gabor wavelet extract iris feature problem.The experimental results show that the odd symmetry 2D Log-Gabor filters have strong robustness with noise and interferences.This algorithm has high theoretical and practical value.