Biometrics is to automatically identify or verify a person using physical, biological, and behaviour characteristics, which include face, iris, fingerprints, palm print, vien, voice, and etc. Compared to the traditional identification and verification methods (such as, some paper, plastic ID card, or password), biometrics is more convenient for users, reduces fraud, and is more secure.
As sensors and computational technology advanced within last couple years, biometrics technologies and systems have been greatly advanced, and become more commonly used in many places. Many designs and applications of biometrics, which were seen in the fiction movies, have been become, or are becoming reality. Biometrics is becoming an important ally of security, intelligence, law enforcement, and e-commerce. This book is to introduce the newest design, development, and applications of biometrics. In addition, it would also discuss the latest concerns and issues in this area.