Glossary

FaceScan

A FaceScan is what Verisoul captures on a client device when verifying a user identity. A FaceScan includes two important data points to help ensure liveness and uniqueness.

• Extracted 3D vectors mapped to represent a user's facial features and landmarks

  • It is crucial the vectors remain three dimensional to prevent common spoofs like presenting a two dimensional picture of a user

  • Note: this does contain some image data but it is immediately encrypted and used only for verification; it is never stored

• Liveness data that captures how a user's vectorized features changed over the duration of a FaceScan

  • Distortions of a face as it moves are measured and help to ensure the user is a real, living person

A FaceScan is used as the basis to create a non-reversible FacePrint and are never stored.

FacePrint

A FacePrint is fundamentally an array of numbers. It's a n-dimensional feature vector that describes numerical features of some object in pattern recognition in machine learning. A FacePrint contains no human visible face data and non-reversible meaning it cannot be used to reconstruct a human viewable image of a face.

1:N Identification

Authentication whereby an identity is captured and compared with all previously captured identities. The search results are used to establish the identity of a person. In short, a 1:N Identification answers the question:

• Who is this person and are they unique?

Examples of a 1:N Identification include any place that requires Social Security Number (SSN), ID/Passport issuance, Verisoul's Liveness & Uniqueness solution, etc.

1:1 Verification

Authentication whereby an identity is captured and compared with a single previously captured identity. In short, a 1:1 Verification answers the question:

• Is this person who they claim to be?

Examples of a 1:1 Verification are Apple's FaceID, CLEAR travel biometrics, inputting a PIN at a bank ATM, etc. This approach is usually made more secure by adding an additional "factor" of authentication like having possession of a phone, password, etc.