Ultrasound has been trialed in biometric recognition systems for many years, and at present
different types of ultrasound fingerprint readers are being produced and integrated in …

Smartphones today have attracted a continuous trend of pursuing narrow-bezel and full-
screen displays. To allow for a more user-friendly front side fingerprint recognition in full …

Wrist vein patterns are acquiring increasing con-sideration in biometric recognition
application. Optical and near infrared technologies provide only 2D information. In this work …

Indoor positioning of objects and people has becoming of great importance in the Internet of
Things (IoT), in-home automation, and navigation in mall, airports or very large buildings …

Fingerprint recognition is a popular and reliable biometric technology used in many security-
sensitive applications. However, the use of fake fingerprints made from ubiquitous spoofing …

Fingerprint recognition systems have achieved widespread integration into various
technological devices, including cell phones, computers, door locks, and time attendance …

Capacitive micromachined ultrasonic transducers (CMUTs) are promising in the emerging
fields of personalized ultrasonic diagnostics, therapy, and noninvasive 3-D biometric …

Biometric systems based on ultrasound images are becoming more and more common and
are exploiting different characteristics like fingerprint, palmprint, hand geometry and palm …

Measuring the distance between two points has multiple uses. Position can be geometrically
calculated from multiple measurements of the distance between reference points and …

Currently, biometrics are widely used in recognition technology; however, biometric
recognition systems are vulnerable to malicious spoofing attacks. Thus, the security of such …