By James L. Wayman, Anil K. Jain, Davide Maltoni, Dario Maio
This e-book presents practitioners with an summary of the foundations & equipment had to construct trustworthy biometric platforms. It covers three major issues: key biometric applied sciences, trying out & administration matters, & the felony and method issues of biometric structures for private verification/identification. It makes a speciality of the four most generally used applied sciences - speech, fingerprint, iris & face popularity. It contains: · In-depth insurance of the technical and functional stumbling blocks that are usually missed by means of software builders & process integrators & which bring about shortfalls among anticipated and real functionality; · unique directions on biometric procedure overview; · Protocols & benchmarks for you to let builders to check functionality & music process advancements. Biometric platforms - expertise, layout and function review is meant as a reference ebook for an individual curious about the layout, administration or implementation of biometric platforms.
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Extra info for Biometric systems: technology, design, and performance evaluation
Finally, in 1880, Faulds forwarded his classification system and method for recording fingerprints to Charles Darwin, who in turn forwarded this material to his cousin, Sir Francis Galton. 4 Francis Galton Francis Galton, an anthropologist, began a systematic study of fingerprints as a means of identification in the 1880s . In 1892, he published the first book on fingerprints, entitled Fingerprints . He added scientific support to what Herschel and Faulds suspected: that fingerprints are permanent throughout life, and that no two fingerprints are identical (by calculating the odds of two individual fingerprints being identical to be 1 in 64 billion).
3(a) is an example of an inked fingerprint that has both good and poor quality areas that must be dealt with during the enhancement process. 4(a) (gray value 0 is at the left and gray value 255 is at the right in this histogram). It is apparent that the predominant gray range is somewhat more than 128 gray values. Initial enhancement may involve the normalization of the inherent intensity variation in a digitized fingerprint caused either by the inking (as in this case) or the live-scan device.
8 . If the function is periodic or the function amplitude does not change significantly within the interval of interest, the average amplitude αm can be used to approximate the individual α. Then the variation may be expressed as 2αm multiplied by the number of periods of the function over the interval . 7 The orientation field is superimposed on the fingerprint image in (a). 3(a) is shown. 7(b)). An enhancement algorithm built upon a model of fingerprint structure can be useful for the enhancement of fingerprints, but it is also important to understand that there are some non-fingerprint properties of digitized fingerprint images that need to be dealt with.
Biometric systems: technology, design, and performance evaluation by James L. Wayman, Anil K. Jain, Davide Maltoni, Dario Maio