The method of the present invention includes the analysis of data representing a bit mapped image of an area of an individual's retina that includes the optic disk where the data for each pixel of the image represents the intensity of the pixel. The method of the present invention locates the optic disk...http://www.google.com/patents/US6757409?utm_source=gb-gplus-sharePatent US6757409 - Method for generating a unique and consistent signal pattern for identification of an individual
