The Degrees Of Freedom Of Sampled Images

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The Degrees of Freedom of Sampled Images

Author : Dennis Grant McCaughey
Publisher :
ISBN 13 :
Total Pages : 159 pages
Book Rating : 4.:/5 (124 download)

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Book Synopsis The Degrees of Freedom of Sampled Images by : Dennis Grant McCaughey

Download or read book The Degrees of Freedom of Sampled Images written by Dennis Grant McCaughey and published by . This book was released on 1977 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents a degree of freedom or information content analysis of images and imaging systems in the context of digital image processing. As such it represents an attempt to quantify the number of truly independent samples one gathers with imaging devices. In quantifying the degrees of freedom of an imaging system it is necessary to develop an appropriate model. In this work the imaging system is modeled as a linear system through the continuous-discrete imaging equation. The associated gram matrix is then employed as an aid in defining the system degrees of freedom. The gram matrix eigenvalues are shown to be related to those of the associated continuous-continuous model and can be used to predict the discretized system performance. These ideas are then applied to the tomorgraphic or projection imaging system; and result in the ability to predict the performance of this system by indicating where redundant data is achieved, and the best ways of increasing the degrees of freedom with a minimum sample increase. The degrees of freedom of sampled image itself are developed as an approximation problem. Here bicubic splines with variable knots are employed in an attempt to answer the question as to what extent images are finitely representable in the context of a digital computer. Relatively simple algorithms for good knot placement are given, and result in spline approximations that achieve significant parameter reductions at acceptable error levels. The knots themselves are shown to be useful as an indicator of image activity, and have potential as an image segmentation device. (Author).

The Limits of Resolution

Author : Geoffrey de Villiers
Publisher : CRC Press
ISBN 13 : 1498758126
Total Pages : 569 pages
Book Rating : 4.4/5 (987 download)

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Book Synopsis The Limits of Resolution by : Geoffrey de Villiers

Download or read book The Limits of Resolution written by Geoffrey de Villiers and published by CRC Press. This book was released on 2016-10-03 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This beautiful book can be read as a novel presenting carefully our quest to get more and more information from our observations and measurements. Its authors are particularly good at relating it." --Pierre C. Sabatier "This is a unique text - a labor of love pulling together for the first time the remarkably large array of mathematical and statistical techniques used for analysis of resolution in many systems of importance today – optical, acoustical, radar, etc.... I believe it will find widespread use and value." --Dr. Robert G.W. Brown, Chief Executive Officer, American Institute of Physics "The mix of physics and mathematics is a unique feature of this book which can be basic not only for PhD students but also for researchers in the area of computational imaging." --Mario Bertero, Professor, University of Geneva "a tour-de-force covering aspects of history, mathematical theory and practical applications. The authors provide a penetrating insight into the often confused topic of resolution and in doing offer a unifying approach to the subject that is applicable not only to traditional optical systems but also modern day, computer-based systems such as radar and RF communications." --Prof. Ian Proudler, Loughborough University "a ‘must have’ for anyone interested in imaging and the spatial resolution of images. This book provides detailed and very readable account of resolution in imaging and organizes the recent history of the subject in excellent fashion.... I strongly recommend it." --Michael A. Fiddy, Professor, University of North Carolina at Charlotte This book brings together the concept of resolution, which limits what we can determine about our physical world, with the theory of linear inverse problems, emphasizing practical applications. The book focuses on methods for solving illposed problems that do not have unique stable solutions. After introducing basic concepts, the contents address problems with "continuous" data in detail before turning to cases of discrete data sets. As one of the unifying principles of the text, the authors explain how non-uniqueness is a feature of measurement problems in science where precision and resolution is essentially always limited by some kind of noise.

Aerial Photography and Image Interpretation

Author : David P. Paine
Publisher : John Wiley & Sons
ISBN 13 : 0470879386
Total Pages : 664 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Aerial Photography and Image Interpretation by : David P. Paine

Download or read book Aerial Photography and Image Interpretation written by David P. Paine and published by John Wiley & Sons. This book was released on 2012-02-14 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new, completely updated edition of the aerial photography classic Extensively revised to address today's technological advances, Aerial Photography and Image Interpretation, Third Edition offers a thorough survey of the technology, techniques, processes, and methods used to create and interpret aerial photographs. The new edition also covers other forms of remote sensing with topics that include the most current information on orthophotography (including digital), soft copy photogrammetry, digital image capture and interpretation, GPS, GIS, small format aerial photography, statistical analysis and thematic mapping errors, and more. A basic introduction is also given to nonphotographic and space-based imaging platforms and sensors, including Landsat, lidar, thermal, and multispectral. This new Third Edition features: Additional coverage of the specialized camera equipment used in aerial photography A strong focus on aerial photography and image interpretation, allowing for a much more thorough presentation of the techniques, processes, and methods than is possible in the broader remote sensing texts currently available Straightforward, user-friendly writing style Expanded coverage of digital photography Test questions and summaries for quick review at the end of each chapter Written in a straightforward style supplemented with hundreds of photographs and illustrations, Aerial Photography and Image Interpretation, Third Edition is the most in-depth resource for undergraduate students and professionals in such fields as forestry, geography, environmental science, archaeology, resource management, surveying, civil and environmental engineering, natural resources, and agriculture.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1064 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Exploratory Image Databases

Author : Simone Santini
Publisher : Elsevier
ISBN 13 : 0080506151
Total Pages : 637 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Exploratory Image Databases by : Simone Santini

Download or read book Exploratory Image Databases written by Simone Santini and published by Elsevier. This book was released on 2001-09-05 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: The explosion of computer use and internet communication has placed new emphasis on the ability to store, retrieve and search for all types of images, both still photo and video images. The success and the future of visual information retrieval depends on the cutting edge research and applications explored in this book. It combines the expertise from both computer vision and database research.Unlike text retrieval and text/numeric databases the challenges of image databases are enormous. How do you use "data mining" to search for an image if you do not have "key words" to search? Exploratory Image Databases introduces the idea that it is possible to solve this problem by merging database systems into a single search and browse activity called "exploration."Exploratory Image Databases is one of the first single-author books that unifies the critical emerging topic of image databases. A new approach to image databases, the work is divided into four central parts: introduction to the problems that image database research must solve; computer vision and information retrieval techniques; image database issues; and interface and engines for visual searches.Example: Imagine the difficulty of building and using a database for "face recognition," where an image of a face is used. In order to effectively use the image a huge number of characteristics would need to be entered in the database. The goal of future image databases is to use hardware and software to recognize and categorize images without typing in characteristics. * Comprehensive coverage of the image analysis as well as the database/theoretical aspects of image databases. * Extensive coverage of interfaces and interaction models, with a theoretical framework for the development of new interaction schemes. * Identifies three interaction models between users and image databases, two of which have no counterpart in traditional databases. * Coverage of the relation between image and text, including mixed search models and the automatic determination of the relation between images and text on large corpuses like the web. * Analysis of the process of signification in images and its influence on the interaction models and technological problems of image databases.

1977 IEEE International Conference on Acoustics, Speech, & Signal Processing, Held at the Sheraton-Hartford Hotel, Hartford, Connecticut, May 9-11, 1977

Download 1977 IEEE International Conference on Acoustics, Speech, & Signal Processing, Held at the Sheraton-Hartford Hotel, Hartford, Connecticut, May 9-11, 1977 PDF Online Free

Author : Institute of Electrical and Electronics Engineers
Publisher :
ISBN 13 :
Total Pages : 904 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis 1977 IEEE International Conference on Acoustics, Speech, & Signal Processing, Held at the Sheraton-Hartford Hotel, Hartford, Connecticut, May 9-11, 1977 by : Institute of Electrical and Electronics Engineers

Download or read book 1977 IEEE International Conference on Acoustics, Speech, & Signal Processing, Held at the Sheraton-Hartford Hotel, Hartford, Connecticut, May 9-11, 1977 written by Institute of Electrical and Electronics Engineers and published by . This book was released on 1977 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Topics in Shannon Sampling and Interpolation Theory

Author : Robert J.II Marks
Publisher : Springer Science & Business Media
ISBN 13 : 146139757X
Total Pages : 364 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Advanced Topics in Shannon Sampling and Interpolation Theory by : Robert J.II Marks

Download or read book Advanced Topics in Shannon Sampling and Interpolation Theory written by Robert J.II Marks and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Topics in Shannon Sampling and Interpolation Theory is the second volume of a textbook on signal analysis solely devoted to the topic of sampling and restoration of continuous time signals and images. Sampling and reconstruction are fundamental problems in any field that deals with real-time signals or images, including communication engineering, image processing, seismology, speech recognition, and digital signal processing. This second volume includes contributions from leading researchers in the field on such topics as Gabor's signal expansion, sampling in optical image formation, linear prediction theory, polar and spiral sampling theory, interpolation from nonuniform samples, an extension of Papoulis's generalized sampling expansion to higher dimensions, and applications of sampling theory to optics and to time-frequency representations. The exhaustive bibliography on Shannon sampling theory will make this an invaluable research tool as well as an excellent text for students planning further research in the field.

Fourier Optics and Computational Imaging

Author : Kedar Khare
Publisher : John Wiley & Sons
ISBN 13 : 1118900367
Total Pages : 312 pages
Book Rating : 4.1/5 (189 download)

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Book Synopsis Fourier Optics and Computational Imaging by : Kedar Khare

Download or read book Fourier Optics and Computational Imaging written by Kedar Khare and published by John Wiley & Sons. This book was released on 2015-08-04 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers both the mathematics of inverse problems and optical systems design, and includes a review of the mathematical methods and Fourier optics. The first part of the book deals with the mathematical tools in detail with minimal assumption about prior knowledge on the part of the reader. The second part of the book discusses concepts in optics, particularly propagation of optical waves and coherence properties of optical fields that form the basis of the computational models used for image recovery. The third part provides a discussion of specific imaging systems that illustrate the power of the hybrid computational imaging model in enhancing imaging performance. A number of exercises are provided for readers to develop further understanding of computational imaging. While the focus of the book is largely on optical imaging systems, the key concepts are discussed in a fairly general manner so as to provide useful background for understanding the mechanisms of a diverse range of imaging modalities.

Introduction to Imaging from Scattered Fields

Author : Michael A Fiddy
Publisher : CRC Press
ISBN 13 : 1466569581
Total Pages : 248 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Introduction to Imaging from Scattered Fields by : Michael A Fiddy

Download or read book Introduction to Imaging from Scattered Fields written by Michael A Fiddy and published by CRC Press. This book was released on 2014-11-10 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Obtain the Best Estimate of a Strongly Scattering Object from Limited Scattered Field Data Introduction to Imaging from Scattered Fields presents an overview of the challenging problem of determining information about an object from measurements of the field scattered from that object. It covers widely used approaches to recover information about the objects and examines the assumptions made a priori about the object and the consequences of recovering object information from limited numbers of noisy measurements of the scattered fields. The book explores the strengths and weaknesses of using inverse methods for weak scattering. These methods, including Fourier-based signal and image processing techniques, allow more straightforward inverse algorithms to be exploited based on a simple mapping of scattered field data. The authors also discuss their recent approach based on a nonlinear filtering step in the inverse algorithm. They illustrate how to use this algorithm through numerous two-dimensional electromagnetic scattering examples. MATLAB® code is provided to help readers quickly apply the approach to a wide variety of inverse scattering problems. In later chapters of the book, the authors focus on important and often forgotten overarching constraints associated with exploiting inverse scattering algorithms. They explain how the number of degrees of freedom associated with any given scattering experiment can be found and how this allows one to specify a minimum number of data that should be measured. They also describe how the prior discrete Fourier transform (PDFT) algorithm helps in estimating the properties of an object from scattered field measurements. The PDFT restores stability and improves estimates of the object even with severely limited data (provided it is sufficient to meet a criterion based on the number of degrees of freedom). Suitable for graduate students and researchers working on medical, geophysical, defense, and industrial inspection inverse problems, this self-contained book provides the necessary details for readers to design improved experiments and process measured data more effectively. It shows how to obtain the best estimate of a strongly scattering object from limited scattered field data.

Ultra-High Field Neuro MRI

Author : Karin Markenroth Bloch
Publisher : Elsevier
ISBN 13 : 0323999530
Total Pages : 628 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Ultra-High Field Neuro MRI by : Karin Markenroth Bloch

Download or read book Ultra-High Field Neuro MRI written by Karin Markenroth Bloch and published by Elsevier. This book was released on 2023-08-21 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-High Field Neuro MRI is a comprehensive reference and educational resource on the current state of neuroimaging at ultra-high field (UHF), with an emphasis on 7T. Sections cover the MR physics aspects of UHF, including the technical challenges and practical solutions that have enabled the rapid growth of 7T MRI. Individual chapters are dedicated to the different techniques that most strongly benefit from UHF, as well as chapters with a focus on different application areas in anatomical, functional and metabolic imaging. Finally, several chapters highlight the neurological and psychiatric applications for which 7T has shown benefits. The book is aimed at scientists who develop MR technologies and support clinical and neuroscience research, as well as users who want to benefit from UHF neuro MR techniques in their work. It also provides a comprehensive introduction to the field. Presents the opportunities and technical challenges presented by MRI at ultra-high field Describes advanced ultra-high field neuro MR techniques for clinical and neuroscience applications Enables the reader to critically assess the specific UHF advantages over currently available techniques at clinical field strengths

Statistical Learning and Pattern Analysis for Image and Video Processing

Author : Nanning Zheng
Publisher : Springer Science & Business Media
ISBN 13 : 1848823126
Total Pages : 371 pages
Book Rating : 4.8/5 (488 download)

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Book Synopsis Statistical Learning and Pattern Analysis for Image and Video Processing by : Nanning Zheng

Download or read book Statistical Learning and Pattern Analysis for Image and Video Processing written by Nanning Zheng and published by Springer Science & Business Media. This book was released on 2009-07-25 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why are We Writing This Book? Visual data (graphical, image, video, and visualized data) affect every aspect of modern society. The cheap collection, storage, and transmission of vast amounts of visual data have revolutionized the practice of science, technology, and business. Innovations from various disciplines have been developed and applied to the task of designing intelligent machines that can automatically detect and exploit useful regularities (patterns) in visual data. One such approach to machine intelligence is statistical learning and pattern analysis for visual data. Over the past two decades, rapid advances have been made throughout the ?eld of visual pattern analysis. Some fundamental problems, including perceptual gro- ing,imagesegmentation, stereomatching, objectdetectionandrecognition,and- tion analysis and visual tracking, have become hot research topics and test beds in multiple areas of specialization, including mathematics, neuron-biometry, and c- nition. A great diversity of models and algorithms stemming from these disciplines has been proposed. To address the issues of ill-posed problems and uncertainties in visual pattern modeling and computing, researchers have developed rich toolkits based on pattern analysis theory, harmonic analysis and partial differential eq- tions, geometry and group theory, graph matching, and graph grammars. Among these technologies involved in intelligent visual information processing, statistical learning and pattern analysis is undoubtedly the most popular and imp- tant approach, and it is also one of the most rapidly developing ?elds, with many achievements in recent years. Above all, it provides a unifying theoretical fra- work for intelligent visual information processing applications.

Image Reconstruction in Radiology

Author : J. A. Parker
Publisher : CRC Press
ISBN 13 : 1351081810
Total Pages : 534 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Image Reconstruction in Radiology by : J. A. Parker

Download or read book Image Reconstruction in Radiology written by J. A. Parker and published by CRC Press. This book was released on 2018-01-18 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This one-of-a-kind resource provides a very readable description of the methods used for image reconstruction in magnetic resonance imaging, X-ray computed tomography, and single photon emission computed tomography. The goal of this fascinating work is to provide radiologists with a practical introduction to mathematical methods so that they may better understand the potentials and limitations of the images used to make diagnoses. Presented in four parts, this state-of-the-art text covers (1) an introduction to the models used in reconstruction, (2) an explanation of the Fourier transform, (3) a brief description of filtering, and (4) the application of these methods to reconstruction. In order to provide a better understanding of the reconstruction process, this comprehensive volume draws analogies between several different reconstruction methods. This informative reference is an absolute must for all radiology residents, as well as graduate students and professionals in the fields of physics, nuclear medicine, and computer-assisted tomography.

Image Analysis

Author : Bjarne Kjær Ersbøll
Publisher : Springer Science & Business Media
ISBN 13 : 3540730397
Total Pages : 1000 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Image Analysis by : Bjarne Kjær Ersbøll

Download or read book Image Analysis written by Bjarne Kjær Ersbøll and published by Springer Science & Business Media. This book was released on 2007-06-05 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 15th Scandinavian Conference on Image Analysis, SCIA 2007, held in Aalborg, Denmark in June 2007. It covers computer vision, 2D and 3D reconstruction, classification and segmentation, medical and biological applications, appearance and shape modeling, face detection, tracking and recognition, motion analysis, feature extraction and object recognition.

Shapes and Spins of Near-Earth Asteroids

Author : Michael W. Busch
Publisher : Universal-Publishers
ISBN 13 : 1599423227
Total Pages : 126 pages
Book Rating : 4.5/5 (994 download)

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Book Synopsis Shapes and Spins of Near-Earth Asteroids by : Michael W. Busch

Download or read book Shapes and Spins of Near-Earth Asteroids written by Michael W. Busch and published by Universal-Publishers. This book was released on 2010-05 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asteroids are diverse and numerous solar system objects, from the large number of objects in the main asteroid belt to the relatively small near-Earth population. Understanding their physical properties is essential to understanding the evolution of the solar system, and asteroid morphology is a complex field in its own right. The histories of individual asteroids, and particularly near-Earth objects, reflect continuous interaction among their shapes, rotation states, and orbits due to the effects of radiation pressure. Radar astronomy has provided detailed information on the orbits, sizes, shapes, rotation states, and composition of many asteroids. To improve the capabilities of asteroid radar observations, I have developed the technique of radar speckle tracking. The echoes from different points on the surface of a radar target interfere with each other, producing a pattern of bright and dark speckles across the surface of the Earth. Using radio astronomy techniques, I track the motion of speckles between several ground stations during a radar experiment to accurately determine the rotation state of the target. Speckle tracking is a powerful tool both to determine the orbital evolution of near-Earth asteroids, particularly potential Earth impactors, and to survey the overall physical properties of the asteroid population. In addition, I have studied applying the techniques of adaptive optics and radio interferometry to asteroid science. These will become more useful with the next generation of asteroid-detecting surveys and the construction of large sub-millimeter interferometers. Interferometry in particular will soon be able to survey the entire asteroid belt.

Compressive Imaging: Structure, Sampling, Learning

Author : Ben Adcock
Publisher : Cambridge University Press
ISBN 13 : 1108383912
Total Pages : 620 pages
Book Rating : 4.1/5 (83 download)

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Book Synopsis Compressive Imaging: Structure, Sampling, Learning by : Ben Adcock

Download or read book Compressive Imaging: Structure, Sampling, Learning written by Ben Adcock and published by Cambridge University Press. This book was released on 2021-09-16 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate, robust and fast image reconstruction is a critical task in many scientific, industrial and medical applications. Over the last decade, image reconstruction has been revolutionized by the rise of compressive imaging. It has fundamentally changed the way modern image reconstruction is performed. This in-depth treatment of the subject commences with a practical introduction to compressive imaging, supplemented with examples and downloadable code, intended for readers without extensive background in the subject. Next, it introduces core topics in compressive imaging – including compressed sensing, wavelets and optimization – in a concise yet rigorous way, before providing a detailed treatment of the mathematics of compressive imaging. The final part is devoted to recent trends in compressive imaging: deep learning and neural networks. With an eye to the next decade of imaging research, and using both empirical and mathematical insights, it examines the potential benefits and the pitfalls of these latest approaches.

Image Science Mathematics

Author : Carroll O. Wilde
Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Image Science Mathematics by : Carroll O. Wilde

Download or read book Image Science Mathematics written by Carroll O. Wilde and published by . This book was released on 1977 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rendering Techniques ’99

Author : Dani Lischinski
Publisher : Springer Science & Business Media
ISBN 13 : 3709168090
Total Pages : 391 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Rendering Techniques ’99 by : Dani Lischinski

Download or read book Rendering Techniques ’99 written by Dani Lischinski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the 10th Eurographics Workshop on Rendering, which took place from the 21st to the 23rd of June, 1999, in Granada, Spain. Origi nally an outgrowth of the annual Eurographics meeting, the workshop was organized by a dedicated group of researchers who felt there was insufficient opportunity at Eu rographics and Siggraph to exchange ideas specifically on rendering. Over the past 9 years, the workshop has become renown as an international watershed for top quality work in this field, attracting between 50 and 100 attendees each year to share their latest research. This year we received a total of 63 submissions. Each paper was carefully reviewed by two of the 25 international programme committee members, as well as two external reviewers, selected by the co-chairs from a pool of 71 individuals. (The programme committee and external reviewers are listed following the contents pages.) In this new review process, all submissions and reviews were handled electronically, with the ex ception of videos submitted with a few of the papers. This streamlined the review process considerably, while reducing the costs and confusion associated with courier delivery of hundreds of papers.