A new iris recognition algorithm,based on PCA and ICA,is proposed in this paper.Firstly,PCA was applied to the iris images in order to reduce dimension and second order correlation,then ICA was applied to train iris images.In our algorithm,ICA was performed on iris images in the CASIA database under two different architectures,of which one treated the image as random variables and the pixels as outcomes,while the other treated the pixels as random variables and the images as outcomes.The first architecture ...