Using periocular region features for biometric authentication

One or more non-transitory, computer-readable, storage media, storing program instructions that when executed using one or more processors cause the one or more processors to:

• receive input from one or more camera comprising information about shadows which comprises information about 3D characteristics of one or more biometric aspects of a periocular region;
• determine, based on the received input comprising the information about the shadows which comprises the information about the 3D characteristics, one or more 3D characteristics for the one or more biometric aspects of the periocular region;
• and
• perform a user authentication process using biometric surface information that comprises the determined one or more 3D characteristics, wherein the user authentication process comprises comparing the biometric surface information to a stored biometric template.

A method, comprising:

• receiving input from one or more sensors comprising information about 3D characteristics of one or more biometric aspects of a periocular region;
• determining, based on the received input comprising the information about the 3D characteristics, one or more 3D characteristics for the one or more biometric aspect of the periocular region, wherein said determining the one or more 3D characteristics comprises determining surface normals;
• and
• performing a user authentication process using biometric surface information that comprises the determined one or more 3D characteristics, wherein the user authentication process comprises comparing the biometric surface information to a stored biometric template.