Read e-book online Advances in biometrics PDF

By N. K. Ratha, Venu Govindaraju

ISBN-10: 1846289203

ISBN-13: 9781846289200


Biometrics know-how maintains to stride ahead with its wider reputation and its genuine desire in a number of new protection features of contemporary society. From easily going online to a pc to crossing the border of a rustic, biometrics is being referred to as upon to fulfill the transforming into demanding situations of identification management.

With contributions from academia and through prime overseas specialists within the box, this specific e-book offers a finished remedy of biometrics and gives assurance of the full gamut of themes within the box, together with facts acquisition, pattern-matching algorithms, and matters that influence on the procedure point, similar to criteria, defense, networks, and databases. it's been geared up below 3 sections: sensors, advances in biometric matching algorithms, and themes that take care of matters on the platforms level.

Key gains:

• comprises new algorithmic advances, together with physiological biometrics (face from video, iris at a distance) and behavioral (handwriting, voice) and a strikingly novel modality in headprint biometrics

• comprises new modalities for study, comparable to infrared and multispectral imaging

• provides numerous chapters at the a lot ignored quarter in terms of the sensors themselves for many of the biometric modalities

• Emphasizes the advances and state-of-the-art applied sciences throughout

• Discusses structures point either from a human-factors standpoint and the viewpoint of networking, databases, privateness and anti-spoofing

• comprises chapters dedicated to touchless photo catch, ultrasonic imaging and swipe methods

Written for researchers and complex scholars, this a lot wanted concise quantity is a perfect instrument to exploit as a prepared reference and captures the very most modern in cutting-edge examine, delivering readers with a broader and deeper realizing of the topic.

Dr Nalini okay. Ratha is a study employees Member on the IBM Thomas J. Watson examine heart, manhattan. He co-edited the profitable Automatic Fingerprint acceptance Systems and likewise co-authored A consultant to Biometrics choice and approach Design

Professor Venu Govindaraju is Director on the heart for Unified Biometrics and Sensors (CUBS), collage at Buffalo, nation collage of recent York.

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Example text

Due to the lack of deformation, the relative minutiae types and locations do not change. This should result in improved matching accuracy and confidence level. • User acceptance: Without the presence of latent prints, users can be more confident about their personal privacy. With the absence of sharing body oils, dirt, grime, viruses, bacteria, and the like, users can be assured about their personal safety and hygiene. New algorithms to match fingerprints directly based on the 3D representation described in this chapter is a new challenge and have to be designed and new methods to protect the system from fake-finger attacks must also be investigated and implemented.

In order to obtain a 2D rolled-equivalent fingerprint from a 3D scan, certain postprocess steps are required after the acquisition. Details of this approach can be found in Fatehpuria et al. (2006). 5 3D Representation of Fingerprints and Their Compatibility with Legacy Systems The devices described in the previous section provide a new representation model for fingerprints, because each image pixel can be described in a 3D space. A new representation of minutiae can also be adopted. 40 G. Parziale z θ Y φ Mi z y x x Fig.

2. Rotational distortion experienced with legacy images. Fig. 3. Enhanced latent fingerprint left on a legacy device platen. also have easily been lifted from the device using tape and used for access at a later time. 3 Touchless Finger Imaging Touchless or contactless finger imaging is essentially a remote-sensing technology used for the capture of the ridge–valley pattern with no contact between the skin of the finger and the sensing area. The lack of contact drastically reduces the above-mentioned problems intrinsic to CFI technology.

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Advances in biometrics by N. K. Ratha, Venu Govindaraju

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