Patent ID: 8818048

Claim:
A method of generating a biometric feature descriptor comprising: acquiring an image of an anatomical feature having a biometric feature; isolating a region of the image having the biometric feature; extracting image data from the image of the region to identify a plurality of features for the biometric feature; transforming the extracted image data for each identified feature into a plurality of feature descriptors; mapping the feature descriptors for the plurality of features into a first two-dimensional arrangement of feature descriptors comprising: a first two-dimensional arrangement of regions corresponding to the extracted image data, a first portion of the regions in the first two dimensional arrangement including the plurality of feature descriptors and a second portion of the regions in the first two dimensional arrangement including no feature descriptors; generating a second two-dimensional arrangement of feature descriptors with a non-invertible transform of the first two-dimensional arrangement of feature descriptors, the non-invertible transform comprising: generating a second two-dimensional arrangement of regions with reference to the first two-dimensional arrangement of regions and a pseudo-random mapping transformation to change a location of at least two regions from the first and second portions of the regions in the first two-dimensional arrangement of regions to different locations in a first dimension and a second dimension of the second two-dimensional arrangement; and storing the second two-dimensional arrangement of feature descriptors into an electronic database.