How it works

Registering your biometric features

To be able to recognize you, the system first needs a baseline sample of your biometric traits; that is, you must “introduce” yourself to the system first.

The general process is the same for any biometric trait.

• Acquisition: you present your biometric trait to a sensor, e.g. you look at a camera
• Pre-processing: unnecessary details and distractions (noise) are removed
• Extraction: your unique biometric features are identified and extracted
• Storage: a file with these details, called your “reference template”, is securely stored

For a detailed, robust template, several samples may be taken and combined.

Authenticating your identity

Once you’ve registered, whenever you log in you will need to authenticate, following the same procedure you used to register.

• Acquisition: you present your biometric trait the same as you did in registration
• Pre-processing: noise is removed
• Extraction: your unique biometric features are again identified and extracted
• Matching: sophisticated algorithms compare the new features with your template. Just like two pictures of you never look exactly the same, two biometric feature sets are never a perfect match. The result is a score that represents how similar the two are.
• Decision: if the score exceeds a predetermined threshold, access is granted