1. Capture: Using sensors, biometric characteristics like fingerprints, facial features, iris patterns, or voice patterns are collected from individuals.
2. Extract: The distinguishing features from the captured data are extracted and converted into a digital format for analysis.
3. Enroll: The extracted data is stored in a dedicated database, creating the individual's biometric template or profile during the enrollment process.
Identify or Verify:
1. Acquire/Compare: When identification or verification is needed, the biometric characteristics are captured again and their data extracted.
2. Match: The current characteristics are matched against the stored biometric profiles in the database.
3. Confirm: If there's a successful match, the identity is confirmed. If there's no match, it shows an unsuccessful verification or identifies the person as unknown.
Storage:
Biometric templates or data derived from the individual's characteristics are securely stored in encrypted form. This prevents direct storage of fingerprints or facial features and enhances privacy and security.
Uses of Biometric Authentication:
1. Unlocking Devices: Mobile phones and laptops now commonly use fingerprint or facial recognition for unlocking.
2. Security Systems: Biometric data can be used to control access to buildings, restricted areas, or even vehicles.
3. Payment Systems: Some payment systems use fingerprint, iris, or facial scans to verify payment card holders' identities.
4. Government Records: Biometric characteristics can be integrated with government records, aiding in law enforcement and immigration checks.
5. Healthcare: Biometrics can be utilized to streamline patient verification and authentication in healthcare facilities.
6. Time and Attendance: Biometrics helps in tracking employees' work schedules and attendance.
7. Travel Security: Air travel and airport security often use biometrics to confirm passenger identities.
Note: While biometrics offers many benefits, data security and privacy must be given utmost importance to protect individuals' personal information.
