Method and system for authenticating a user on a wearable heads-up display

A method of configuring a wearable heads-up display for authentication of a subject user, comprising:

• generating an infrared light;
• scanning the infrared light over at least a portion of at least one eye of the subject user through a plurality of scan orientations of an optical scanner;
• detecting reflections of infrared light from the at least one eye of the subject user during the scanning of the at least one eye;
• determining, for each detected reflection, a scan orientation of the optical scanner associated with the detected reflection;
• constructing at least one image or representative structure associated with the at least one eye of the subject user based on the detected reflections and each determined scan orientation;
• extracting biometric identification data from the at least one image or representative structure;
• and
• storing at least a portion of the extracted biometric identification data in a non-transitory processor-readable memory associated with the wearable heads-up display.

A method of operating a wearable heads-up display that in use is worn on a head of a subject user, the wearable heads-up display having associated therewith reference biometric identification data of at least one registered user, the method comprising:

• scanning, with an optical scanner, infrared light over at least a portion of at least one eye of the subject user;
• detecting reflections of the infrared light from at least the portion of the at least one eye of the subject user;
• determining, for each detected reflection, a scan orientation of the optical scanner associated with the detected reflection;
• constructing at least one image or representative structure of at least the portion of the at least one eye of the subject user based on the detected reflections and each determined scan orientation;
• extracting test biometric identification data from the at least one image or representative structure;
• determining a similarity measure between the test biometric identification data and the reference biometric identification data;
• and
• authenticating the subject user based on the similarity measure.

A wearable heads-up display having a field of view, the wearable heads-up display comprising:

• a support frame that in use is worn on a head of a subject user;
• a laser module carried by the support frame, the laser module to generate at least an infrared light;
• an optical scanner carried by the support frame, the optical scanner positioned and oriented to scan the infrared light over at least a portion of an eye of the subject user through a plurality of scan orientations;
• a combiner lens carried by the support frame, the combiner lens comprising a transparent combiner positioned within the field of view, the transparent combiner to receive the infrared light from the optical scanner and redirect the infrared light to the eye of the subject user;
• an infrared detector carried by the support frame, the infrared detector positioned and oriented to detect reflections of infrared light from the at least a portion of the eye of the subject user for the plurality of scan orientations;
• a processor carried by the support frame;
• and
• a non-transitory processor-readable storage medium communicatively coupled to the processor, wherein the non-transitory processor-readable storage medium stores reference biometric identification data associated with at least one registered user, wherein the non-transitory processor-readable storage medium further stores data and/or processor-executable instructions that, when executed by the processor, cause the wearable heads-up display to:
• extract, by the processor, test biometric identification data from at least a portion of reflections detected by the infrared detector and corresponding scan orientations of the optical scanner, each of the corresponding scan orientations indicating one of the plurality of scan orientations of the optical scanner associated with the one or more of the reflections detected by the infrared detector;
• determine a similarity measure between the test biometric identification data and the reference biometric identification data by the processor;
• authenticate the user based on the similarity measure by the processor;
• determine that the subject user requested access to a secondary interactive system;
• and
• responsive to the subject user being authenticated and having requested access to the secondary interactive system, transmit a set of authentication credentials including at least a portion of the reference biometric identification data or the test biometric identification data to the secondary interactive system.