Trends in Multimodal Biometric Identification Systems
Numerous physical characteristics exist in each of us that enable law enforcement personnel to accurately identify criminal suspects. The most important are a person’s fingerprints, palm prints, facial features, irises and DNA. Individually these characteristics—which are unique to everybody—are called modalities. Three other significant modalities are a person’s gait, the timber of their voice and their vascular system—the manner in which veins and arteries grow also is unique to each individual—though these are emerging modalities.