Ultrasound Systems for Biometric Recognition.

Area of Science:

• Biometrics and Sensor Technology
• Medical Imaging and Signal Processing

Background:

• Biometric recognition systems are increasingly adopted in civilian applications due to their reliability and accuracy.
• Ultrasound imaging provides 3D data, offering distinctive features and robust spoof attack resistance compared to other biometric modalities.

Purpose of the Study:

• To review research on ultrasound sensors and systems for biometric recognition.
• To classify studies based on ultrasound imaging techniques used for biometric characteristics.

Main Methods:

• Review of existing research on ultrasound-based biometric recognition.
• Classification of studies by ultrasound imaging techniques (e.g., fingerprint, hand vein, palmprint, hand geometry).
• Brief recall of fundamental ultrasound imaging concepts and technologies.

Main Results:

• Various transducer technologies and ultrasound techniques have been explored for imaging biometric traits.
• Ultrasound-based biometrics demonstrate potential for high accuracy and anti-spoofing capabilities.
• Research indicates ultrasound systems can image diverse biometric characteristics effectively.

Conclusions:

• Ultrasound technology presents a competitive option for the expanding biometrics market.
• The 3D imaging capability of ultrasound provides unique advantages for biometric security.
• Integration of ultrasound sensors in portable devices is a promising future direction.