Texture features for biometric authentication

A computer implemented method comprising:

• obtaining one or more first image regions of a first image of an eye, wherein each of the first image regions includes a view of a respective portion of vasculature of the eye;
• and
• until a score exceeds a threshold, progressively increasing a filter resolution and calculating the score based on the filter resolution by:
• applying a plurality of filters having the filter resolution to the first image regions to generate filter output;
• deriving a plurality of first descriptors from the filter output;
• and
• comparing the first descriptors to second descriptors derived from second image regions of a second image of an eye, the second image regions comprising regions that are co-registered with the first image regions for corresponding descriptors in the plurality of first descriptors.

A system comprising:

• at least one memory for storing computer executable instructions;
• and
• at least one processor for executing the instructions stored on the at least one memory, wherein execution of the instructions programs the at least one processor to perform operations comprising:
• obtaining one or more first image regions of a first image of an eye, wherein each of the first image regions includes a view of a respective portion of vasculature of the eye;
• and
• until a score exceeds a threshold, progressively increasing a filter resolution and calculating the score based on the filter resolution by:
• applying a plurality of filters having the filter resolution to the first image regions to generate filter output;
• deriving a plurality of first descriptors from the filter output;
• and
• comparing the first descriptors to second descriptors derived from second image regions of a second image of an eye, the second image regions comprising regions that are co-registered with the first image regions for corresponding descriptors in the plurality of first descriptors.

A program product stored on a non-transitory computer-readable medium, the program product comprising instructions that, when executed by at least one processor, program the at least one processor to perform operations comprising:

• obtaining one or more first image regions of a first image of an eye, wherein each of the first image regions includes a view of a respective portion of vasculature of the eye;
• and
• until a score exceeds a threshold, progressively increasing a filter resolution and calculating the score based on the filter resolution by:
• applying a plurality of filters having the filter resolution to the first image regions to generate filter output;
• deriving a plurality of first descriptors from the filter output;
• and
• comparing the first descriptors to second descriptors derived from second image regions of a second image of an eye, the second image regions comprising regions that are co-registered with the first image regions for corresponding descriptors in the plurality of first descriptors.