1. A method of identifying a subject by biometric analysis of the iris of an eye, the method comprising the steps of: (1) acquiring an image of an iris of the subject; (2) radially segmenting the iris image into a plurality of radial segments; (3) for each radial segment, determining data for a predetermined one dimensional feature within said segment relative to a reference value of said feature within said image; and (4) constructing a template for said subject comprising said data set for each of said radial segments.