Search for dissertations about: "Biometrics security"

Showing result 1 - 5 of 6 swedish dissertations containing the words Biometrics security.

2. 1. Authentication under Constraints

   Author : Elena Pagnin; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Security.; Distance-Bounding; Privacy; Biometrics; Anonymity; Authentication; Digital Signatures;

   Abstract : Authentication has become a critical step to gain access to services such as on-line banking, e-commerce, transport systems and cars (contact-less keys). In several cases, however, the authentication process has to be performed under challenging conditions. READ MORE

4. 2. Lip-motion and speech biometrics in person recognition

   Author : Maycel Isaac Faraj; Högskolan i Halmstad; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Audio-visual recognition; biometrics; Biometric recognition; Speaker verification; Speaker authentication; Person identification; Lip movements; Motion; Structure tensor; Orientation; Optical flow; Hidden Markov Model; Gaussian Markov Model; Lip-motion; Image analysis; Bildanalys;

   Abstract : Biometric identification techniques are frequently used to improve security, e.g. in financial transactions, computer networks and secure critical locations. The purpose of biometric authentication systems is to verify an individual by her biological characteristics including those generating characterisitic behaviour. READ MORE

5. 3. Lip-motion biometrics for audio-visual identity recognition

   Author : Maycel Isaac Faraj; Massimo Tistarelli; Högskolan i Halmstad; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biometrics; Lip motion; Audio-visual signals; Speech recognition; Speaker recognition; Digit recognition; Image analysis; Bildanalys;

   Abstract : Biometric recognition systems have been established as powerful security tools to prevent unknown users from entering high risk systems and areas. They are increasingly being utilized in surveillance and access management (city centers, banks, etc.) by using individuals' physical or biological characteristics. READ MORE

6. 4. Usable privacy for digital transactions : Exploring the usability aspects of three privacy enhancing mechanisms

   Author : Julio Angulo; John Sören Pettersson; Simone Fischer-Hübner; Erik Wästlund; Karlstads universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Privacy-Enhancing Technologies; usability; usable privacy; mental models; mobile devices; security; digital transactions; e-commerce; User Interfaces; Information Systems; Informatik;

   Abstract : The amount of personal identifiable information that people distribute over different online services has grown rapidly and considerably over the last decades. This has led to increased probabilities for identity theft, profiling and linkability attacks, which can in turn not only result in a threat to people’s personal dignity, finances, and many other aspects of their lives, but also to societies in general. READ MORE

7. 5. Audio-video synthesis methods for improving performance of biometric systems

   Author : Dereje Teferi Lemma; Josef Bigun; Högskolan i Halmstad; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biometrics; Audio-Video synthesis; Image segmentation; XM2VTS; DXM2VTS; TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : System security is important for any automation. It is even more so in the case of biometric systems due to the sensitive nature of the data it uses for enrollment and authentication - the subjects physical or biological trait. READ MORE