Biometric sensors
Biometrics refers to the practice of identifying and recognizing humans based on their unique physical attributes. Biometric sensors are devices used for identification and authentication purposes. They employ automated methods to verify or recognize the identity of individuals using their physical characteristics. These attributes commonly include fingerprints, facial images, iris patterns, and voice recognition. By analyzing these distinct features, biometric sensors help ensure secure and accurate authentication of individuals.
Biometric sensors are becoming increasingly popular due to the growing demand for higher security standards and the need to safeguard mobile and removable devices. Traditional password-based security measures have limitations, such as vulnerability to theft or loss. Consequently, technologies like smartcards and biometric sensors are gaining traction. Biometric authentication focuses on verifying an individual’s identity based on unique biological characteristics. Methods include iris scans, fingerprint sensors, and face recognition.
Fingerprint sensors, for instance, are manufactured using CMOS technology, commonly used in integrated circuits. These sensors find applications in devices like notebooks, which grant access only upon recognizing the user’s fingerprint. Face recognition relies on CCD and CMOS image sensors. However, biometric authentication methods face challenges, including false accepts and false rejects. Unlike password-based authentication, biometric systems cannot guarantee exact matches, introducing inherent limitations to their accuracy. Despite these challenges, biometric authentication offers promising solutions for enhancing security and access control in various domains.