Biometrics

The primary biometric disciplines include the following:

• Fingerprint (optical, silicon, ultrasound, touch less)

• Facial recognition (optical and thermal)

• Voice recognition (not to be confused with speech recognition)

• Iris-scan

• Retina-scan

• Hand geometry

• Signature-scan

• Keystroke-scan

• Palm-scan (forensic use only)  

Disciplines with reduced commercial viability or in exploratory stages include:

• DNA

• Ear shape

• Odor (human scent)

• Vein-scan (in back of hand or beneath palm)

• Finger geometry (shape and structure of finger or fingers)

• Nailbed identification (ridges in fingernails)

• Gait recognition (manner of walking)