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Author: Frédéric Cao
Publisher: Springer Science & Business Media
ISBN: 9783540004028
Category : Mathematics
Languages : en
Pages : 204
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Book Description
In image processing, "motions by curvature" provide an efficient way to smooth curves representing the boundaries of objects. In such a motion, each point of the curve moves, at any instant, with a normal velocity equal to a function of the curvature at this point. This book is a rigorous and self-contained exposition of the techniques of "motion by curvature". The approach is axiomatic and formulated in terms of geometric invariance with respect to the position of the observer. This is translated into mathematical terms, and the author develops the approach of Olver, Sapiro and Tannenbaum, which classifies all curve evolution equations. He then draws a complete parallel with another axiomatic approach using level-set methods: this leads to generalized curvature motions. Finally, novel, and very accurate, numerical schemes are proposed allowing one to compute the solution of highly degenerate evolution equations in a completely invariant way. The convergence of this scheme is also proved.
Author: Frédéric Cao
Publisher: Springer Science & Business Media
ISBN: 9783540004028
Category : Mathematics
Languages : en
Pages : 204
Get Book Here
Book Description
In image processing, "motions by curvature" provide an efficient way to smooth curves representing the boundaries of objects. In such a motion, each point of the curve moves, at any instant, with a normal velocity equal to a function of the curvature at this point. This book is a rigorous and self-contained exposition of the techniques of "motion by curvature". The approach is axiomatic and formulated in terms of geometric invariance with respect to the position of the observer. This is translated into mathematical terms, and the author develops the approach of Olver, Sapiro and Tannenbaum, which classifies all curve evolution equations. He then draws a complete parallel with another axiomatic approach using level-set methods: this leads to generalized curvature motions. Finally, novel, and very accurate, numerical schemes are proposed allowing one to compute the solution of highly degenerate evolution equations in a completely invariant way. The convergence of this scheme is also proved.
Author: Marco Bohr
Publisher: Routledge
ISBN: 9781138216037
Category : Art
Languages : en
Pages : 154
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Book Description
This volume addresses the evolution of the visual in digital communities, offering a multidisciplinary discussion of the ways in which images are circulated in digital communities, the meanings that are attached to them and the implications they have for notions of identity, memory, gender, cultural belonging and political action. Contributors focus on the political efficacy of the image in digital communities, as well as the representation of the digital self in order to offer a fresh perspective on the role of digital images in the creation and promotion of new forms of resistance, agency and identity within visual cultures.
Author: Yves Meyer
Publisher: American Mathematical Soc.
ISBN: 9780821829202
Category : Computers
Languages : en
Pages : 138
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Book Description
Image compression, the Navier-Stokes equations, and detection of gravitational waves are three seemingly unrelated scientific problems that, remarkably, can be studied from one perspective. The notion that unifies the three problems is that of ``oscillating patterns'', which are present in many natural images, help to explain nonlinear equations, and are pivotal in studying chirps and frequency-modulated signals. The first chapter of this book considers image processing, moreprecisely algorithms of image compression and denoising. This research is motivated in particular by the new standard for compression of still images known as JPEG-2000. The second chapter has new results on the Navier-Stokes and other nonlinear evolution equations. Frequency-modulated signals and theiruse in the detection of gravitational waves are covered in the final chapter. In the book, the author describes both what the oscillating patterns are and the mathematics necessary for their analysis. It turns out that this mathematics involves new properties of various Besov-type function spaces and leads to many deep results, including new generalizations of famous Gagliardo-Nirenberg and Poincare inequalities. This book is based on the ``Dean Jacqueline B. Lewis Memorial Lectures'' given bythe author at Rutgers University. It can be used either as a textbook in studying applications of wavelets to image processing or as a supplementary resource for studying nonlinear evolution equations or frequency-modulated signals. Most of the material in the book did not appear previously inmonograph literature.
Author: Nick Hopwood
Publisher: University of Chicago Press
ISBN: 022604694X
Category : Art
Languages : en
Pages : 397
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Book Description
Emphasizing the changes worked by circulation and copying, interpretation and debate, this book uses the case to explore how pictures succeed and fail, gain acceptance and spark controversy. It reveals how embryonic development was made a process that we can see, compare, and discuss, and how copying - usually dismissed as unoriginal
Author: Juan J. Romero
Publisher: Springer Science & Business Media
ISBN: 3540728775
Category : Computers
Languages : en
Pages : 465
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Book Description
This comprehensive book gives an up-to-date survey of the relevant bioinspired computing research fields – such as evolutionary computation, artificial life, swarm intelligence and ant colony algorithms – and examines applications in art, music and design. The editors and contributors are researchers and artists with deep experience of the related science, tools and applications, and the book includes overviews of historical developments and future perspectives.
Author: Robert Clark
Publisher: Phaidon Press
ISBN: 9780714871189
Category : Science
Languages : en
Pages : 0
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Book Description
Stunning images to reawaken us to the scientific process that drives the amazing diversity of life on earth Evidence of evolution is everywhere. Through 200 revelatory images, award-winning photographer Robert Clark makes one of the most important foundations of science clear and exciting to everyone. Evolution: A Visual Record transports readers from the near-mystical(human ancestors) to the historic (the famous 'finches' Darwin collected on the Galapagos Islands that spurred his theory); the recently understood (the link between dinosaurs and modern birds) to the simply astonishing.
Author: Rick Sammon
Publisher: Taylor & Francis
ISBN: 1317219791
Category : Photography
Languages : en
Pages : 313
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Book Description
Rick Sammon’s Evolution of an Image illustrates the creative photographic process from start to finish. In this book, Canon Explorer of Light Rick Sammon pulls back the curtain to prove that creating amazing photographs is a well-thought-out process that involves several stages. Comprising 50 case studies that examine photographs taken by Rick around the world in a wide variety of shooting situations, Evolution of an Image shows the power of creative thinking, getting it right in the camera, and the careful use of image processing using Lightroom. By including his outtakes— and the reasons that he considers them outtakes— Rick suggests the steps that every photographer should take in order to improve their images. Combining technical advice with tips on lighting, composition and using Lightroom, this book will motivate and encourage those looking to evolve as creative photographers and digital darkroom artists. Key features include: • More than 200 before-and-after photographs • Fully illustrated sections on wildlife, seascape, landscape, scenic, action and people photography • Screen grabs showing Rick’s Lightroom adjustments • Suggestions on working in Adobe Photoshop Lightroom as well as Adobe Photoshop • Special section on Rick’s "Sammonisms," or quick tips on getting the best in-camera image • Advice on evolving as a photographer • Inspirational photographs from Provence, the Palouse, Kenya, Antarctica, Iceland, Alaska, Mongolia, Myanmar, Colorado and more
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309105862
Category : Science
Languages : en
Pages : 88
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Book Description
How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable. In the book Science, Evolution, and Creationism, a group of experts assembled by the National Academy of Sciences and the Institute of Medicine explain the fundamental methods of science, document the overwhelming evidence in support of biological evolution, and evaluate the alternative perspectives offered by advocates of various kinds of creationism, including "intelligent design." The book explores the many fascinating inquiries being pursued that put the science of evolution to work in preventing and treating human disease, developing new agricultural products, and fostering industrial innovations. The book also presents the scientific and legal reasons for not teaching creationist ideas in public school science classes. Mindful of school board battles and recent court decisions, Science, Evolution, and Creationism shows that science and religion should be viewed as different ways of understanding the world rather than as frameworks that are in conflict with each other and that the evidence for evolution can be fully compatible with religious faith. For educators, students, teachers, community leaders, legislators, policy makers, and parents who seek to understand the basis of evolutionary science, this publication will be an essential resource.
Author: Andrew Burstein
Publisher: Macmillan
ISBN: 0809085364
Category : History
Languages : en
Pages : 434
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Book Description
For more than two centuries, Americans have used words of sentiment and sympathy, passion and power to explain their country's unique democratic mission. Here Andrew Burstein examines the emotional dynamic and the metaphorically rich language which Americans developed to express their guiding principle: that the New World would improve upon the Old. "Feeling," he argues, was a political and cultural phenomenon, and in the impassioned rhetoric of "feeling" we can locate the sources of American patriotism. Using newspapers and magazines, private letters and public speeches, diaries and books, Burstein shows how the eighteenth-century "culture of sensibility" encouraged early Americans to make a heartfelt commitment to the Enlightenment's optimism about a global society; it would succeed, they believed, as much by sublime feeling as by intellectual achievement and political liberty. "Sentimental Democracy" gives us a lively dual portrait of the American psyche and the American dream -- telling us as much about ourselves as about our morally passionate ancestors. -- From publisher's description.
Author: Kathryn Applegate
Publisher: Monarch Books
ISBN: 0857217887
Category : Religion
Languages : en
Pages : 209
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Book Description
Over two dozen Christian leaders describe how they changed their minds about evolution Perhaps no topic appears as potentially threatening to evangelicals as evolution. The very idea seems to exclude God from the creation the book of Genesis celebrates. Yet many evangelicals have come to accept the conclusions of science while still holding to a vigorous belief in God and the Bible. How did they make this journey? How did they come to embrace both evolution and faith? Here are stories from a community of people who love Jesus and honor the authority of the Bible, but who also agree with what science says about the cosmos, our planet and the life that so abundantly fills it. Among the contributors are Scientists such as: Francis Collins Deborah Haarsma Denis Lamoureux Theologians and philosophers such as: James K. A. Smith Amos Yong Oliver Crisp Biblical scholars such as: N. T. Wright Scot McKnight Tremper Longman III Pastors such as: John Ortberg Ken Fong Laura Truax
