A first course in coding theory by Raymond Hill

By Raymond Hill

Algebraic coding thought is a brand new and swiftly constructing topic, renowned for its many functional functions and for its fascinatingly wealthy mathematical constitution. This booklet presents an easy but rigorous creation to the idea of error-correcting codes. according to classes given through the writer over numerous years to complicated undergraduates and first-year graduated scholars, this consultant encompasses a huge variety of routines, all with suggestions, making the publication hugely appropriate for person research

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Asynchronous biometric systems: Under this particular scenario, two or more biometric devices are used to confirm the identity of an individual. Again, the same examples of fingerprint recognition and iris recognition can be used. However, rather than devices being used exactly at the same time, these two biometric devices are used in a sequential fashion, with one device being used first, then the other device being used second. Therefore, in this particular situation, first the iris recognition device could be used to verify the particular individual at the main premises of the business, and subsequently, the fingerprint recognition device could be used to provide a further means of security (assuming, for example, that the particular individual needs to gain access to a more secure area at the place of business or organization).

Introduction 33 Some of these key considerations include the following: • The various height variances as well as differences between the end user population. • The actual frequency of usage of the particular biometric modality. For example, if a device is not used very frequently, and if the end user population is small enough (perhaps less than 10 employees), then it might make more sense to offer special assistance to the end users who are physically challenged. • Perhaps even, the biometric modality can be contained in a semiprivate area and cordoned off to give the end user a sense of privacy, although he or she completes the enrollment and verification processes.

This could prove to be very costly as well as time consuming. Gait Recognition Although this future biometric modality is still under heavy research and development, it promises to hold strong potential as a viable technology. Preliminary research even indicates that if this is truly the case, it would even have very strong levels of end user acceptance, due to its noninvasive nature. However, once it is proven as a viable biometric, it can also be used very covertly in mass application settings, such as those of the international airports, in order to track down known terror suspects.

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