Audio-Visual Biometrics Low-cost technology that combines recognition of individuals' faces with voice recognition is now available for low-security applications, but overcoming false rejections remains an unsolved problem.
Petar S. Aleksic, Aggelos K. Katsaggelos · 2006
Biometric characteristics can be utilized in order to enable reliable and robust-to-impostor-attacks person recognition. Speaker recognition technology is commonly utilized in various systems enabling natural human computer interaction. The majority of the speaker recognition systems rely only on acoustic information, ignoring the visual modality. However, visual information conveys correlated and compli- mentary information to the audio information and its integra- tion into a recognition system can potentially increase the system's performance, especially in the presence of adverse acoustic conditions. Acoustic and visual biometric signals, such as the person's voice and face, can be obtained using unobtrusive and user-friendly procedures and low-cost sen- sors. Developing unobtrusive biometric systems makes bio- metric technology more socially acceptable and accelerates its integration into every day life. In this paper, we describe the main components of audio-visual biometric systems, review existing systems and their performance, and discuss future research and development directions in this area.