video tracking theory and practice

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Video Tracking

Author : Emilio Maggio
ISBN : 9781119956860
Genre : Science
File Size : 86. 22 MB
Format : PDF, ePub, Docs
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Video Tracking provides a comprehensive treatment of the fundamental aspects of algorithm and application development for the task of estimating, over time, the position of objects of interest seen through cameras. Starting from the general problem definition and a review of existing and emerging video tracking applications, the book discusses popular methods, such as those based on correlation and gradient-descent. Using practical examples, the reader is introduced to the advantages and limitations of deterministic approaches, and is then guided toward more advanced video tracking solutions, such as those based on the Bayes’ recursive framework and on Random Finite Sets. Key features: Discusses the design choices and implementation issues required to turn the underlying mathematical models into a real-world effective tracking systems. Provides block diagrams and simil-code implementation of the algorithms. Reviews methods to evaluate the performance of video trackers – this is identified as a major problem by end-users. The book aims to help researchers and practitioners develop techniques and solutions based on the potential of video tracking applications. The design methodologies discussed throughout the book provide guidelines for developers in the industry working on vision-based applications. The book may also serve as a reference for engineering and computer science graduate students involved in vision, robotics, human-computer interaction, smart environments and virtual reality programmes

Video Tracking

Author : Emilio Maggio
ISBN : 9780470974384
Genre : Science
File Size : 61. 94 MB
Format : PDF
Download : 709
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Video Tracking provides a comprehensive treatment of the fundamental aspects of algorithm and application development for the task of estimating, over time, the position of objects of interest seen through cameras. Starting from the general problem definition and a review of existing and emerging video tracking applications, the book discusses popular methods, such as those based on correlation and gradient-descent. Using practical examples, the reader is introduced to the advantages and limitations of deterministic approaches, and is then guided toward more advanced video tracking solutions, such as those based on the Bayes’ recursive framework and on Random Finite Sets. Key features: Discusses the design choices and implementation issues required to turn the underlying mathematical models into a real-world effective tracking systems. Provides block diagrams and simil-code implementation of the algorithms. Reviews methods to evaluate the performance of video trackers – this is identified as a major problem by end-users. The book aims to help researchers and practitioners develop techniques and solutions based on the potential of video tracking applications. The design methodologies discussed throughout the book provide guidelines for developers in the industry working on vision-based applications. The book may also serve as a reference for engineering and computer science graduate students involved in vision, robotics, human-computer interaction, smart environments and virtual reality programmes

Eye Tracking Methodology

Author : Andrew T. Duchowski
ISBN : 9783319578835
Genre : Computers
File Size : 73. 7 MB
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This book focuses on video-based, corneal-reflection eye trackers – the most widely available and affordable type of system, and takes a look at a number of interesting and challenging applications in human factors, collaborative systems, virtual reality, marketing and advertising. The third edition has been extensively revised and extended, and includes new chapters on calibration accuracy, precision and correction; advanced eye movement analysis; binocular eye movement analysis; practical gaze analytics; design; GIS. Opening with useful background information, including an introduction to the human visual system and key issues in visual perception and eye movement, the author then surveys eye-tracking devices and provides a detailed introduction to the technical requirements necessary for installing a system and developing an application program.

Object Detection And Recognition In Digital Images

Author : Boguslaw Cyganek
ISBN : 9781118618363
Genre : Science
File Size : 32. 66 MB
Format : PDF
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Object detection, tracking and recognition in images are key problems in computer vision. This book provides the reader with a balanced treatment between the theory and practice of selected methods in these areas to make the book accessible to a range of researchers, engineers, developers and postgraduate students working in computer vision and related fields. Key features: Explains the main theoretical ideas behind each method (which are augmented with a rigorous mathematical derivation of the formulas), their implementation (in C++) and demonstrated working in real applications. Places an emphasis on tensor and statistical based approaches within object detection and recognition. Provides an overview of image clustering and classification methods which includes subspace and kernel based processing, mean shift and Kalman filter, neural networks, and k-means methods. Contains numerous case study examples of mainly automotive applications. Includes a companion website hosting full C++ implementation, of topics presented in the book as a software library, and an accompanying manual to the software platform.

Background Subtraction

Author : Ahmed Elgammal
ISBN : 9781627054416
Genre : Computers
File Size : 48. 16 MB
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Background subtraction is a widely used concept for detection of moving objects in videos. In the last two decades there has been a lot of development in designing algorithms for background subtraction, as well as wide use of these algorithms in various important applications, such as visual surveillance, sports video analysis, motion capture, etc. Various statistical approaches have been proposed to model scene backgrounds. The concept of background subtraction also has been extended to detect objects from videos captured from moving cameras. This book reviews the concept and practice of background subtraction. We discuss several traditional statistical background subtraction models, including the widely used parametric Gaussian mixture models and non-parametric models. We also discuss the issue of shadow suppression, which is essential for human motion analysis applications. This book discusses approaches and tradeoffs for background maintenance. This book also reviews many of the recent developments in background subtraction paradigm. Recent advances in developing algorithms for background subtraction from moving cameras are described, including motion-compensation-based approaches and motion-segmentation-based approaches.

Eye Tracking The User Experience

Author : Aga Bojko
ISBN : 9781933820910
Genre : Computers
File Size : 87. 18 MB
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Eye tracking is a widely used research method, but there are many questions and misconceptions about how to effectively apply it. Eye Tracking the User Experience—the first how-to book about eye tracking for UX practitioners—offers step-by-step advice on how to plan, prepare, and conduct eye tracking studies; how to analyze and interpret eye movement data; and how to successfully communicate eye tracking findings.

Drug Courts

Author : James L. Nolan
ISBN : 0202365689
Genre : Law
File Size : 77. 64 MB
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Drug courts offer offenders an intensive court-based treatment program as an alternative to the normal adjudication process. Begun in 1989, they have since spread dramatically throughout the United States. In this interdisciplinary examination of the expanding movement, a distinguished panel of legal practitioners and academics offers theoretical assessments and on-site empirical analyses of the workings of various courts in the United States, along with detailed comparisons and contrasts with related developments in Britain. Practitioners, politicians, and academics alike acknowledge the profound impact drug courts have had on the American criminal justice system. From a range of disciplinary perspectives, contributors to this volume seek to make sense of this important judicial innovation. While addressing a range of questions, Drug Courts also aims to achieve a careful balance between focused empirical studies and broader theoretical analyses of the same phenomenon. The volume maintains an analytical concentration on drug courts and on the important practical, philosophical, and jurisprudential consequences of this unique form of therapeutic jurisprudence. Drug courts depart from the practices and procedures of typical criminal courts. Prosecutors and defense counsel play much-reduced roles. Often lawyers are not even present during regular drug court sessions. Instead, the main courtroom drama is between the judge and client, both of whom speak openly and freely in the drug court setting. Often accompanying the client is a treatment provider who advises the judge and reviews the client's progress in treatment. Court sessions are characterized by expressive and sometimes tearful testimonies about the recovery process, and are often punctuated with applause from those in attendance. Taken together, the chapters provide a variety of perspectives on drug courts, and extend our knowledge of the birth and evolution of a new movement. Drug Courts is an essential reference for courses in criminology, the sociology of drugs and deviance, and the philosophy of law and punishment.

Lying And Deception

Author : Thomas L. Carson
ISBN : 9780199577415
Genre : FAMILY & RELATIONSHIPS
File Size : 55. 10 MB
Format : PDF
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This is the most comprehensive and up-to-date investigation of moral and conceptual questions about lying and deception. Carson argues that there is a moral presumption against lying and deception that causes harm, he examines case-studies from business, politics, and history, and he offers a qualified defence of the view that honesty is a virtue.

Eye Tracking

Author : Kenneth Holmqvist
ISBN : 9780191625428
Genre : Psychology
File Size : 32. 11 MB
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We make 3-5 eye movements per second, and these movements are crucial in helping us deal with the vast amounts of information we encounter in our everyday lives. In recent years, thanks to the development of eye tracking technology, there has been a growing interest in monitoring and measuring these movements, with a view to understanding how we attend to and process the visual information we encounter Eye tracking as a research tool is now more accessible than ever, and is growing in popularity amongst researchers from a whole host of different disciplines. Usability analysts, sports scientists, cognitive psychologists, reading researchers, psycholinguists, neurophysiologists, electrical engineers, and others, all have a vested interest in eye tracking for different reasons. The ability to record eye-movements has helped advance our science and led to technological innovations. However, the growth of eye tracking in recent years has also presented a variety of challenges - in particular the issue of how to design an eye-tracking experiment, and how to analyse the data. This book is a much needed comprehensive handbook of eye tracking methodology. It describes how to evaluate and acquire an eye-tracker, how to plan and design an eye tracking study, and how to record and analyse eye-movement data. Besides technical details and theory, the heart of this book revolves around practicality - how raw data samples are converted into fixations and saccades using event detection algorithms, how the different representations of eye movement data are calculated using AOIs, heat maps and scanpaths, and how all the measures of eye movements relate to these processes. Part I presents the technology and skills needed to perform high-quality research with eye-trackers. Part II covers the predominant methods applied to the data which eye-trackers record. These include the parsing of raw sample data into oculomotor events, and how to calculate other representations of eye movements such as heat maps and transition matrices. Part III gives a comprehensive outline of the measures which can be calculated using the events and representations described in Part II. This is a taxonomy of the measures available to eye-tracking researchers, sorted by type of movement of the eyes and type of analysis. For anyone in the sciences considering conducting research involving eye-tracking, this book will be an essential reference work.

Translation

Author : Daniel Weissbort
ISBN : 9780198711995
Genre : Language Arts & Disciplines
File Size : 70. 53 MB
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Translation: Theory and Practice: A Historical Reader responds to the need for a collection of primary texts on translation, in the English tradition, from the earliest times to the present day. Based on an exhaustive survey of the wealth of available materials, the Reader demonstrates throughout the link between theory and practice, with excerpts not only of significant theoretical writings but of actual translations, as well as excerpts on translation from letters, interviews, autobiographies, and fiction. The collection is intended as a teaching tool, but also as an encyclopaedia for the use of translators and writers on translation. It presents the full panoply of approaches to translation, without necessarily judging between them, but showing clearly what is to be gained or lost in each case. Translations of key texts, such as the Bible and the Homeric epic, are traced through the ages, with the same passages excerpted, making it possible for readers to construct their own map of the evolution of translation and to evaluate, in their historical contexts, the variety of approaches. The passages in question are also accompanied by ad verbum versions, to facilitate comparison. The bibliographies are likewise comprehensive. The editors have drawn on the expertise of leading scholars in the field, including the late James S. Holmes, Louis Kelly, Jonathan Wilcox, Jane Stevenson, David Hopkins, and many others. In addition, significant non-English texts, such as Martin Luther's "Circular Letter on Translation," which may be said to have inaugurated the Reformation, are included, helping to set the English tradition in a wider context. Related items, such as the introductions to their work by Tudor and Jacobean translators or the work of women translators from the sixteenth to eighteenth centuries have been brought together in "collages," marking particularly important moments or developments in the history of translation. This comprehensive reader provides an invaluable and illuminating resource for scholars and students of translation and English literature, as well as poets, cultural historians, and professional translators.

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