Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 231 for “"biometric"”.
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Multimodal Cancelable Biometric System
… insufficient to provide reliable authentication. Biometric authentication is now widely used in both physical and virtual worlds. Unfortunately, even the well-established biometric systems are suffering from vulnerabilities, with the most crucial components being biometric templates that store …
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Keystroke dynamics as a biometric
… protective techniques involves adding a layer of biometric analysis to other security mechanisms, as a means of establishing the identity of an individual beyond reasonable doubt. In the search for a biometric technique which is both low-cost and transparent to the end user, researchers have …
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Performance analysis of multimodal biometric fusion
Biometrics is constantly evolving technology which has been widely used in many official and commercial identification applications. In fact in recent years biometric-based authentication techniques received more attention due to increased concerns in security. Most biometric systems that are …
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Contextual biometric watermarking of fingerprint images
This research presents contextual digital watermarking techniques using face and demographic text data as multiple watermarks for protecting the evidentiary integrity of fingerprint image. The proposed techniques embed the watermarks into selected regions of fingerprint image in MDCT and DWT …
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A Multimodal Biometric Authentication for Smartphones
Biometrics is seen as a viable solution to ageing password based authentication on smartphones. Fingerprint biometric is leading the biometric technology for smartphones, however, owing to its high cost, major players in mobile industry are introducing fingerprint sensors only on their flagship …
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Verification of secure biometric authentication protocols
The thesis presents verification of biometric authentication protocols. ProVerif is used as the verification tool for verifying and analysing the protocols. The protocol are analysed in ProVerif model. Various attacks to the protocols are generated in order to verify whether the protocols hold …
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Image indexing optimization. Biometric and biomedical applications
La interpretación automática de imágenes es un reto de la inteligencia artificial, el reconocimiento de patrones y la visión por ordenador, con aplicaciones en seguridad (autentificación), biometría y biomedicina, por nombrar algunas de ellas. En esta tesis doctoral se desarrolla una metodología …
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Iris Biometric Identification Using Artificial Neural Networks
<p>A biometric method is a more secure way of personal identification than passwords. This thesis examines the iris as a personal identifier with the use of neural networks as the classifier. A comparison of different feature extraction methods that include the Fourier transform, discrete cosine …
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Multimodal Person Recognition using Social Behavioral Biometric
The goal of a biometric recognition system is to make a human-like decision on individuals’ identity by recognizing their physiological and/or behavioral traits. Nevertheless, decision-making process by either a human or a biometric recognition system can be highly complicated due to low quality of …
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Airport Passenger Processing Technology: A Biometric Airport Journey
… control. These solutions can be integrated with biometric systems to enhance passenger handling. This thesis analyzes the current passenger processing technology implemented at airports around the world and their associated challenges that passengers face. A new passenger processing technology …
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Compressive gait biometric with wireless distributed pyroelectric sensors
… vision, robotics, virtual reality, etc. Many biometric modalities have been used on these applications. Compared to other biometric modalities, such as fingerprints, face, and iris, gait biometrics are advantageous in their capability of recognition at a distance under changing environmental …
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Using synthetic images to improve iris biometric performance
… technology has allowed for a rise in the use of biometric markers to automatically track the identity of individuals. Iris biometrics has emerged as one of the most reliable and accurate systems when dealing with cooperating subjects, however, challenges arise when attempting to minimize the …
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Biometric and Biomechanical Sensing for Violin Performance Analysis
Expressive violin performance demands the coordination of multiple physical and physiological processes. Students, especially those engaged in infrequent private lessons, often struggle to manage these demands. Outside of lessons, they lack access to the resources and external feedback that …
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Efficient homomorphically encrypted privacy-preserving automated biometric classification
This thesis investigates whether biometric recognition can be performed on encrypted data without decrypting the data. Borrowing the concept from machine learning, we develop approaches that cache as much computation as possible to a pre-computation step, allowing for efficient, homomorphically …
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Techniques for Ocular Biometric Recognition Under Non-ideal Conditions
The use of the ocular region as a biometric cue has gained considerable traction due to recent advances in automated iris recognition. However, a multitude of factors can negatively impact ocular recognition performance under unconstrained conditions (e.g., non-uniform illumination, occlusions, …
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Modeling Errors in Biometric Surveillance and De-duplication Systems
In biometrics-based surveillance and de-duplication applications, the system commonly determines if a given individual has been encountered before. In this dissertation, these applications are viewed as specific instances of a broader class of problems known as Anonymous Identification. Here, the …
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Estimating reliability impact of biometric devices in large scale applications
… decades, there has been a tremendous growth of biometric applications especially in security. Reliability of the biometric devices is extremely important.;This thesis discusses an approach for estimating the reliability of systems, which contain biometric user authentication subsystem. The ECRA …
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