In this paper, we study biometric key generation using face images. Given a face image, a set of biometric features are extracted. Each feature is compared with a threshold to generate a key-bit. By cascading the key-bits from all the features, we obtain one bio-key that can be used for security applications. The performance of a biometric key generation system, determined by the chosen thresholds, can be evaluated according to reliability and security. A generalized optimal thresholding method is proposed in this paper to improve the reliability by minimizing the authentication error rate and the security by maximizing the entropy of the generated key.
Generalized optimal thresholding for biometric key generation using face images
IEEE International Conference on Image Processing 2005 ; 3 ; III-784
01.01.2005
339978 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Generalized Optimal Thresholding for Biometric Key Generation using Face Images
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