Studied by 1 person
Biometric factors
Biometric factors refer to an individual's unique physical or behavioral characteristics that can be used for identification or authentication purposes.
Examples of biometric factors include fingerprints, iris patterns, facial features, voice patterns, hand geometry, and gait.
Biometric factors are often used in security systems, access control, and identity verification processes.
Biometric factors are considered more reliable and secure than traditional methods like passwords or ID cards, as they are difficult to forge or replicate.
Biometric factors are captured using specialized devices or sensors and are converted into digital templates for comparison and matching purposes.
Biometric factors are protected by privacy laws and regulations to ensure the secure and ethical use of personal biometric data.
Biometric acceptance rates
• False acceptance rate (FAR)
– Likelihood that an unauthorized user will be accepted
– Not sensitive enough • False rejection rate (FRR)
– Likelihood that an authorized user will be rejected
– Too sensitive
• Crossover error rate (CER)
– Defines the overall accuracy of a biometric system
– The rate at which FAR and FRR are equal
– Adjust sensitivity to equalize both values
How do biometric systems work?
Biometric systems work by capturing and analyzing’ unique physical or behavioral characteristics. Here is a simplified explanation of how they work:
Enrollment: The individual's biometric data, such as fingerprints, iris patterns, or facial features, is captured using specialized sensors or cameras.
Feature Extraction: The system extracts specific features or patterns from the captured biometric data, creating a unique template or digital representation.
Template Creation: The extracted features are converted into a mathematical algorithm or template that can be stored and compared.
Matching: During authentication or identification, the system compares the captured biometric data with the stored templates to find a match.
Decision: The system determines whether the captured biometric data matches stored templates within a predefined threshold.
Access Granted or Denied: Based on the decision, the system grants or denies access to the individual or performs the desired action.
It's important to note that biometric systems may use different techniques and algorithms, but the general process remains similar.
Why is biometric technology becoming widespread?
Biometric technology is becoming widespread due to its high level of security and convenience. It offers a unique and reliable way to authenticate individuals based on their physiological or behavioral characteristics, such as fingerprints, iris patterns, or voice recognition. Biometrics provides a more secure alternative to traditional methods like passwords or ID cards, as it is difficult to forge or replicate these unique traits. Additionally, advancements in technology have made biometric systems more affordable and accessible, leading to their increased adoption in various sectors including banking, healthcare, and law enforcement.
