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What is Liveness Test

Encyclopedia of Information Science and Technology, Second Edition
A test performed to test if the biometric traits are from a living person rather than an artificial or lifeless person.
Published in Chapter:
Biometric Technologies
Yingzi ("Eliza") Du (Indiana University, Purdue University, USA)
DOI: 10.4018/978-1-60566-026-4.ch062
Biometrics is an emerging technology for automatic human identification and verification using unique biological traits (Woodward, Orlans, & Higgins, 2002). These traits include face, fingerprints, iris, voice, hand geometry, handwriting, retina, and veins. For example, fingerprint recognition analyzes ridge ends, bifurcation, or dots of finger tips; voice recognition analyzes speech signal characteristics; iris recognition analyzes the pits, striations, filaments, rings, dark spots, and freckles of eyes; and face recognition analyzes facial parameters (Du et al., 2004). It is based on “something you are” rather than “something you have” (Du, 2005). Compared to the traditional identification and verification ways, such as user name/password, and paper IDs, biometrics is more convenient to use, reduces fraud, and is more secure (Reid, 2004).
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