US 11,711,216 B1
Systems and methods for privacy-secured biometric identification and verification
Norman Hoon Thian Poh, Atlanta, GA (US)
Assigned to T STAMP INC., Atlanta, GA (US)
Filed by T Stamp Inc., Atlanta, GA (US)
Filed on Dec. 2, 2020, as Appl. No. 17/109,693.
Claims priority of provisional application 62/942,311, filed on Dec. 2, 2019.
Int. Cl. H04L 9/32 (2006.01); G06F 21/62 (2013.01); G06F 21/32 (2013.01)
CPC H04L 9/3231 (2013.01) [G06F 21/32 (2013.01); G06F 21/6245 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for biometric enrollment comprising:
receiving a request to generate a unique representation of a subject;
receiving at least one probe template associated with the subject;
generating a cohort set based on a plurality of templates from a sample population;
performing a one-to-many comparison process on the at least one probe template and the cohort set to generate one or more cohort vectors;
normalizing the one or more cohort vectors;
applying a lossy transformation to the one or more normalized cohort vectors to generate one or more transformed, privacy-secured (TPS) templates; and
performing an enrollment process for the subject comprising storing the one or more TPS templates as the unique representation of the subject in one or more registries.