What does the template in biometric authentication refer to?

In biometric authentication, the template refers to a scanned and recorded version of an individual's biometric information, such as fingerprints, facial features, or iris patterns. When a biometric sample is collected, it undergoes processing to create a unique digital representation or template that can be stored and compared against future biometric inputs. This process ensures accuracy and efficiency in recognizing individuals based on their distinctive physical characteristics.

The template is essential because it encapsulates the critical features of the biometric data while discarding extraneous information, allowing for effective matching and retrieval during authentication sessions. This means that when a person presents their biometric trait for authentication, the system compares it against the stored template to confirm their identity.