Download or read book Recognition of Nonideal Iris Images Using Shape Guided Approach and Game Theory written by Kaushik Roy and published by . This book was released on 2011 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most state-of-the-art iris recognition algorithms claim to perform with a very high recognition accuracy in a strictly controlled environment. However, their recognition accuracies significantly decrease when the acquired images are affected by different noise factors including motion blur, camera diffusion, head movement, gaze direction, camera angle, reflections, contrast, luminosity, eyelid and eyelash occlusions, and problems due to contraction and dilation. The main objective of this thesis is to develop a nonideal iris recognition system by using active contour methods, Genetic Algorithms (GAs), shape guided model, Adaptive Asymmetrical Support Vector Machines (AASVMs) and Game Theory (GT). In this thesis, the proposed iris recognition method is divided into two phases: (1) cooperative iris recognition, and (2) noncooperative iris recognition. While most state-of-the-art iris recognition algorithms have focused on the preprocessing of iris images, recently, important new directions have been identified in iris biometrics research. These include optimal feature selection and iris pattern classification. In the first phase, we propose an iris recognition scheme based on GAs and asymmetrical SVMs. Instead of using the whole iris region, we elicit the iris information between the collarette and the pupil boundary to suppress the effects of eyelid and eyelash occlusions and to minimize the matching error. In the second phase, we process the nonideal iris images that are captured in unconstrained situations and those affected by several nonideal factors. The proposed noncooperative iris recognition method is further divided into three approaches. In the first approach of the second phase, we apply active contour-based curve evolution approaches to segment the inner/outer boundaries accurately from the nonideal iris images. The proposed active contour-based approaches show a reasonable performance when the iris/sclera boundary is separated by a blurred boundary. In the second approach, we describe a new iris segmentation scheme using GT to elicit iris/pupil boundary from a nonideal iris image. We apply a parallel game-theoretic decision making procedure by modifying Chakraborty and Duncan's algorithm to form a unified approach, which is robust to noise and poor localization and less affected by weak iris/sclera boundary. Finally, to further improve the segmentation performance, we propose a variational model to localize the iris region belonging to the given shape space using active contour method, a geometric shape prior and the Mumford-Shah functional. The verification and identification performance of the proposed scheme is validated using four challenging nonideal iris datasets, namely, the ICE 2005, the UBIRIS Version 1, the CASIA Version 3 Interval, and the WVU Nonideal, plus the non-homogeneous combined dataset. We have conducted several sets of experiments and finally, the proposed approach has achieved a Genuine Accept Rate (GAR) of 97.34% on the combined dataset at the fixed False Accept Rate (FAR) of 0.001% with an Equal Error Rate (EER) of 0.81%. The highest Correct Recognition Rate (CRR) obtained by the proposed iris recognition system is 97.39%.
Download or read book Iris Image Recognition written by Amol D. Rahulkar and published by Springer. This book was released on 2014-05-12 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the new results in wavelet filter banks based feature extraction, and the classifier in the field of iris image recognition. It provides the broad treatment on the design of separable, non-separable wavelets filter banks, and the classifier. The design techniques presented in the book are applied on iris image analysis for person authentication. This book also brings together the three strands of research (wavelets, iris image analysis and classifier). It compares the performance of the presented techniques with state-of-the-art available schemes. This book contains the compilation of basic material on the design of wavelets that avoids reading many different books. Therefore, it provides an easier path for the new-comers, researchers to master the contents. In addition, the designed filter banks and classifier can also be effectively used than existing filter-banks in many signal processing applications like pattern classification, data-compression, watermarking, denoising etc. that will give the new directions of the research in the relevant field for the readers.
Download or read book Handbook of Iris Recognition written by Kevin W. Bowyer and published by Springer. This book was released on 2016-07-28 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive work on iris recognition technology, this comprehensive handbook presents a broad overview of the state of the art in this exciting and rapidly evolving field. Revised and updated from the highly-successful original, this second edition has also been considerably expanded in scope and content, featuring four completely new chapters. Features: provides authoritative insights from an international selection of preeminent researchers from government, industry, and academia; reviews issues covering the full spectrum of the iris recognition process, from acquisition to encoding; presents surveys of topical areas, and discusses the frontiers of iris research, including cross-wavelength matching, iris template aging, and anti-spoofing; describes open source software for the iris recognition pipeline and datasets of iris images; includes new content on liveness detection, correcting off-angle iris images, subjects with eye conditions, and implementing software systems for iris recognition.
Download or read book Face Recognition Technologies written by Douglas Yeung and published by Rand Corporation. This book was released on 2020-05-15 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Face recognition technologies (FRTs) have many practical security-related purposes, but advocacy groups and individuals have expressed apprehensions about their use. This report highlights the high-level privacy and bias implications of FRT systems. The authors propose a heuristic with two dimensions -- consent status and comparison type -- to help determine a proposed FRT's level of privacy and accuracy. They also identify privacy and bias concerns.
Download or read book Reasoning written by Anthony Simon Laden and published by Oxford University Press, USA. This book was released on 2012-05-31 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthony Simon Laden explores the kind of reasoning we engage in when we live together: when we are responsive to others and neither commanding nor deferring to them. He argues for a new, social picture of the activity of reasoning, in which reasoning is a species of conversation—social, ongoing, and governed by a set of characteristic norms.
Download or read book Advances in Biometrics written by N. K. Ratha and published by Springer Science & Business Media. This book was released on 2008 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in biometrics include new developments in sensors, modalities and algorithms. As new sensors are designed, newer challenges emerge in the algorithms for accurate recognition. Written for researchers, advanced students and practitioners to use as a handbook, this volume captures the very latest state-of-the-art research contributions from leading international researchers. It offers coverage of the entire gamut of topics in the field, including sensors, data acquisition, pattern-matching algorithms, and issues that impact at the system level, such as standards, security, networks, and databases
Download or read book The Racial Contract written by Charles W. Mills and published by Cornell University Press. This book was released on 2022-04-15 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Racial Contract puts classic Western social contract theory, deadpan, to extraordinary radical use. With a sweeping look at the European expansionism and racism of the last five hundred years, Charles W. Mills demonstrates how this peculiar and unacknowledged "contract" has shaped a system of global European domination: how it brings into existence "whites" and "non-whites," full persons and sub-persons, how it influences white moral theory and moral psychology; and how this system is imposed on non-whites through ideological conditioning and violence. The Racial Contract argues that the society we live in is a continuing white supremacist state. As this 25th anniversary edition—featuring a foreword by Tommy Shelbie and a new preface by the author—makes clear, the still-urgent The Racial Contract continues to inspire, provoke, and influence thinking about the intersection of the racist underpinnings of political philosophy.
Download or read book The Ethics of Care written by Virginia Held and published by Oxford University Press. This book was released on 2006 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author assesses the ethics of care as a promising alternative to the familiar moral theories that serve so inadequately to guide our lives. Held examines what we mean by care and focuses on caring relationships. She also looks at the potential of care for dealing with social issues and global problems.
Download or read book Virtual Augmented Reality and Serious Games for Healthcare 1 written by Minhua Ma and published by Springer Science & Business. This book was released on 2014-04-25 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a tremendous interest among researchers for the development of virtual, augmented reality and games technologies due to their widespread applications in medicine and healthcare. To date the major applications of these technologies include medical simulation, telemedicine, medical and healthcare training, pain control, visualisation aid for surgery, rehabilitation in cases such as stroke, phobia and trauma therapies. Many recent studies have identified the benefits of using Virtual Reality, Augmented Reality or serious games in a variety of medical applications. This research volume on Virtual, Augmented Reality and Serious Games for Healthcare 1 offers an insightful introduction to the theories, development and applications of virtual, augmented reality and digital games technologies in medical and clinical settings and healthcare in general. It is divided into six sections: section one presents a selection of applications in medical education and healthcare management; Section two relates to the nursing training, health literacy and healthy behaviour; Section three presents the applications of Virtual Reality in neuropsychology; Section four includes a number of applications in motor rehabilitation; Section five aimed at therapeutic games for various diseases; and the final section presents the applications of Virtual Reality in healing and restoration. This book is directed to the healthcare professionals, scientists, researchers, professors and the students who wish to explore the applications of virtual, augmented reality and serious games in healthcare further.
Download or read book Advances in Signal Processing and Intelligent Recognition Systems written by Sabu M. Thampi and published by Springer Nature. This book was released on 2020-04-30 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Symposium on Advances in Signal Processing and Intelligent Recognition Systems, SIRS 2019, held in Trivandrum, India, in December 2019. The 19 revised full papers and 8 revised short papers presented were carefully reviewed and selected from 63 submissions. The papers cover wide research fields including information retrieval, human-computer interaction (HCI), information extraction, speech recognition.
Download or read book Multi Objective Optimization using Evolutionary Algorithms written by Kalyanmoy Deb and published by John Wiley & Sons. This book was released on 2001-07-05 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimierung mit mehreren Zielen, evolutionäre Algorithmen: Dieses Buch wendet sich vorrangig an Einsteiger, denn es werden kaum Vorkenntnisse vorausgesetzt. Geboten werden alle notwendigen Grundlagen, um die Theorie auf Probleme der Ingenieurtechnik, der Vorhersage und der Planung anzuwenden. Der Autor gibt auch einen Ausblick auf Forschungsaufgaben der Zukunft.
Download or read book Justice in a Non Ideal World written by Alexandre Gajevic Sayegh and published by Rowman & Littlefield. This book was released on 2019-04-10 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: The realisation of justice in the real world requires political theory and political action. This book offers a road map for these two notions to connect. It explains how action-guiding principles are formulated by seeking cross-disciplinary input. Also, it casts light on the concepts that occupy the space between political theory and real-world politics, which are often used as reasons to obstruct the progression of social justice, e.g. feasibility, fact-sensitivity, compliance and path-dependence. This book argues for a re-appropriation of these concepts in the name of justice. Many examples will be provided. In particular, the book focuses on the case of climate change. It offers two case studies on the realisation of climate justice.
Download or read book Advances in Fingerprint Technology written by Ashim K. Datta and published by CRC Press. This book was released on 2001-06-15 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fingerprints constitute one of the most important categories of physical evidence, and it is among the few that can be truly individualized. During the last two decades, many new and exciting developments have taken place in the field of fingerprint science, particularly in the realm of methods for developing latent prints and in the growth of imag
Download or read book The Virtue of Defiance and Psychiatric Engagement written by Nancy Nyquist Potter and published by Oxford University Press. This book was released on 2016 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is defiance, and when does defiant behaviour impede one's ability to aim at flourishing? People who are defiant can present perplexing challenges etiologically, diagnostically, and responsively. But in order to understand accurately when defiant behaviour is good, or bad, or neither (when it emerges out of mental illness), a fresh perspective on defiance is needed. This book offers a nuanced and complex look at defiance, taking seriously issues of dysfunction while also attending to social contexts in which defiant behaviour may arise. Those living in adverse conditions such as oppression, systematic disadvantages, and disability may act defiantly for good reasons. This perspective places defiance squarely within the moral domain; thus, it should not be assumed that when professionals come across defiant behaviour, it is a sign of mental dysfunction. Potter argues that defiance sometimes is a virtue, meaning that a disposition to be ready to be defiant when the situation calls for it is part of living a life with a realistic understanding of the aim of flourishing and its limits in our everyday world. Her work also offers theoretical work on problems in knowing that can impede understanding and responsiveness to those who are, or seem to be, defiant. Clinicians, teachers, social workers, nurses, and others working in helping professions are invited to engage in different ways with defiance so as to better understand and respond to people who express that defiance. Case studies, a framework for differentiating different forms of defiance, a realistic picture of phronesis-practical reasoning-and an explanation of how to give uptake well are some of the topics covered. The voices of service users strengthen the author's claims that defiance that is grounded in phronesis is just as much a part of moral life for those living with mental disabilities as for anyone else.
Download or read book Guide to Biometrics written by Ruud M. Bolle and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting with fingerprints more than a hundred years ago, there has been ongoing research in biometrics. Within the last forty years face and speaker recognition have emerged as research topics. However, as recently as a decade ago, biometrics itself did not exist as an independent field. Each of the biometric-related topics grew out of different disciplines. For example, the study of fingerprints came from forensics and pattern recognition, speaker recognition evolved from signal processing, the beginnings of face recognition were in computer vision, and privacy concerns arose from the public policy arena. One of the challenges of any new field is to state what the core ideas are that define the field in order to provide a research agenda for the field and identify key research problems. Biometrics has been grappling with this challenge since the late 1990s. With the matu ration of biometrics, the separate biometrics areas are coalescing into the new discipline of biometrics. The establishment of biometrics as a recognized field of inquiry allows the research community to identify problems that are common to biometrics in general. It is this identification of common problems that will define biometrics as a field and allow for broad advancement.
Download or read book Automatic Fingerprint Recognition Systems written by Nalini Ratha and published by Springer Science & Business Media. This book was released on 2003-10-09 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative survey of intelligent fingerprint-recognition concepts, technology, and systems is given. Editors and contributors are the leading researchers and applied R&D developers of this personal identification (biometric security) topic and technology. Biometrics and pattern recognition researchers and professionals will find the book an indispensable resource for current knowledge and technology in the field.
Download or read book How Propaganda Works written by Jason Stanley and published by Princeton University Press. This book was released on 2015-05-26 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: How propaganda undermines democracy and why we need to pay attention Our democracy today is fraught with political campaigns, lobbyists, liberal media, and Fox News commentators, all using language to influence the way we think and reason about public issues. Even so, many of us believe that propaganda and manipulation aren't problems for us—not in the way they were for the totalitarian societies of the mid-twentieth century. In How Propaganda Works, Jason Stanley demonstrates that more attention needs to be paid. He examines how propaganda operates subtly, how it undermines democracy—particularly the ideals of democratic deliberation and equality—and how it has damaged democracies of the past. Focusing on the shortcomings of liberal democratic states, Stanley provides a historically grounded introduction to democratic political theory as a window into the misuse of democratic vocabulary for propaganda's selfish purposes. He lays out historical examples, such as the restructuring of the US public school system at the turn of the twentieth century, to explore how the language of democracy is sometimes used to mask an undemocratic reality. Drawing from a range of sources, including feminist theory, critical race theory, epistemology, formal semantics, educational theory, and social and cognitive psychology, he explains how the manipulative and hypocritical declaration of flawed beliefs and ideologies arises from and perpetuates inequalities in society, such as the racial injustices that commonly occur in the United States. How Propaganda Works shows that an understanding of propaganda and its mechanisms is essential for the preservation and protection of liberal democracies everywhere.
