6.Classification Method
The last module of an iris recognition system is used
for matching two iris templates. Its purpose is to
measure how similar or different templates are and to
decide whether or not they belong to the same
individual or not. The test of matching is
implemented by the feed forward neural network
applied to the encode feature vector of any two iris
patterns.
Feed forward neural network has been used for for
iris feature classification. Feed-forward neural
networks (FNN) are one of the popular structures
among artificial neural networks. In this network, the
information moves in only one direction, forward,
from the input nodes, through the hidden nodes (if
any) and to the output nodes. There are 3 layers in
feed Forward Neural Network.
1.Input Layers
2.Hidden layers
3.Output Layers