1. A method for processing segmented iris images comprising: receiving a segmented iris image; dividing an iris region in the segmented iris image into a plurality of bins. dividing the iris region in the segmented iris image into a second plurality of bins angularly offset from the first plurality of bins to include iris features at edges of bins in the first plurality of bins; selecting feature points in the segmented iris image to describe an iris locally; comparing selected feature points in a first location in the segmented iris image to feature points at a corresponding location in another iris image; and detecting a correspondence between the segmented iris image and the other iris image in response to the Euclidian distance between the selected feature points in the first location in the segmented iris image and the feature points at the corresponding location in the other iris image being less than a predetermined threshold.