A review of biometric technology along with trends and prospects

• We discussed different biometric modalities with their advantages and challenges.
• The article provides information regarding feature sets and recognition techniques.
• We provided information regarding public data sources available for researchers.
• The article contains thorough discussion on multi-modal biometric systems.
• We provided biometric market share and prospects with exemplary evidences.

Identity management through biometrics offer potential advantages over knowledge and possession based methods. A wide variety of biometric modalities have been tested so far but several factors paralyze the accuracy of mono-modal biometric systems. Usually, the analysis of multiple modalities offers better accuracy. An extensive review of biometric technology is presented here. Besides the mono-modal systems, the article also discusses multi-modal biometric systems along with their architecture and information fusion levels. The paper along with the exemplary evidences highlights the potential for biometric technology, market value and prospects.