For many applications there are additional non-biometric sources of information that can be used in person authentication. In other applications, the use of a single biometric is not sufficiently secure or does not provide sufficient coverage of the user population in that using only one biometric results in too many Failures to Acquire (high FTA rate), where it is simply impossible to sample the biometric of a subject. In both cases, the question becomes, How do we integrate multiple biometric (and non-biometric) sources of information (as in Figure 11.1) to make the overall application more accurate and hence more secure? In this chapter we describe a variety of techniques for doing so.
KeywordsAuthentication Protocol Integrate Information Biometric System Fingerprint Image Speaker Verification
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