Titlebook: Iris Biometrics; From Segmentation to Christian Rathgeb,Andreas Uhl,Peter Wild Book 2013 Springer Science+Business Media, LLC 2013 Biometri

把手

Iris Segmentation MethodologiesTraditional iris processing following Daugman’s approach [116] extracts binary features after mapping the textural area between inner pupillary and outer limbic boundary into a doubly dimensionless representation.

有权威

Multi-stage Real-Time Iris PreprocessingMotivated by the growing demand for real-time capable solutions, this chapter presents in detail a multistage approach to iris segmentation [541, 540]

Incorruptible

治愈

Iris Biometric Cryptosystems. [69]. The majority of biometric cryptosystems require the storage of biometric-dependent public information applied to retrieve or generate keys which is referred to as helper data [228]. Due to biometric variance it is not feasible for most biometric characteristics to extract cryptographic keys directly.

arrhythmic

CODE

WatermarkingIn the first section of this chapter, the general relation between watermarking and biometrics is discussed in detail. The second section provides a systematic and critical view of the work done on applying watermarking to enhance biometric systems.

stressors

Experiments on Biometric ComparatorsInvestigated issues comprise the accuracy of each comparator, computational requirements compared to the baseline technique using HD with applied bit-shifting to account for rotational alignment, as well as related questions. More specifically, the distribution of reliable bits or trade-offs between recognition accuracy and speed is evaluated.

狗窝

Potential Attacksdentifies security threats against biometric systems and possible countermeasures [449] and discusses man-in-the-middle attacks and BioPhishing against a web-based biometric authentication system [606].

carotenoids

Christian Rathgeb,Andreas Uhl,Peter WildProvides detailed analysis and discussions regarding issues and challenges which are rarely investigated within common literature, e.g. watermarking, image segmentation, compression and template prote

Vasodilation