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Author : Daniel J. Jobson
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Spatial Vision Processes written by Daniel J. Jobson and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 :
Total Pages : 75 pages
Book Rating : 4./5 ( download)
Download or read book Emergent Techniques for Assessment of Visual Performance written by National Research Council and published by National Academies Press. This book was released on 1985-01-01 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent vision research has led to the emergence of new techniques that offer exciting potential for a more complete assessment of vision in clinical, industrial, and military settings. Emergent Techniques for Assessment of Visual Performance examines four areas of vision testing that offer potential for improved assessment of visual capability including: contrast sensitivity function, dark-focus of accommodation, dynamic visual acuity and dynamic depth tracking, and ambient and focal vision. In contrast to studies of accepted practices, this report focuses on emerging techniques that could help determine whether people have the vision necessary to do their jobs. In addition to examining some of these emerging techniques, the report identifies their usefulness in predicting performance on other visual and visual-motor tasks, and makes recommendations for future research. Emergent Techniques for Assessment of Visual Performance provides summary recommendations for research that will have significant value and policy implications for the next 5 to 10 years. The content and conclusions of this report can serve as a useful resource for those responsible for screening industrial and military visual function.
Author : Daniel J. Jobson
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)
Download or read book Spatial Vision Processes: From the Optical Image to the Symbolic Structures of Contour Information written by Daniel J. Jobson and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722793548
Total Pages : 30 pages
Book Rating : 4.7/5 (935 download)
Download or read book Spatial Vision Processes written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-11 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significance of machine and natural vision is discussed together with the need for a general approach to image acquisition and processing aimed at recognition. An exploratory scheme is proposed which encompasses the definition of spatial primitives, intrinsic image properties and sampling, 2-D edge detection at the smallest scale, the construction of spatial primitives from edges, and the isolation of contour information from textural information. Concepts drawn from or suggested by natural vision at both perceptual and physiological levels are relied upon heavily to guide the development of the overall scheme. The scheme is intended to provide a larger context in which to place the emerging technology of detector array focal-plane processors. The approach differs from many recent efforts in edge detection and image coding by emphasizing smallest scale edge detection as a foundation for multi-scale symbolic processing while diminishing somewhat the importance of image convolutions with multi-scale edge operators. Cursory treatments of information theory illustrate that the direct application of this theory to structural information in images could not be realized. Jobson, Daniel J. Langley Research Center RTOP 549-02-21-01...
Author : Russell L. De Valois
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (113 download)
Download or read book Spatial Vision written by Russell L. De Valois and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to present neuroscientists, cognitive psychologists and ophthalmologists with an integrated view of how humans perceive the spatial relations in their visual world, this study covers anatomical, physiological, psychological and perceptual aspects.
Author : Russell L. DeValois
Publisher : Oxford University Press
ISBN 13 : 0198021720
Total Pages : 396 pages
Book Rating : 4.1/5 (98 download)
Download or read book Spatial Vision written by Russell L. DeValois and published by Oxford University Press. This book was released on 1990-08-09 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an integrated view of how we perceive the spatial relations in our visual world, covering anatomical, physiological, psychophysical, and perceptual aspects. The authors discuss the visual system primarily in terms of spatial frequency analysis using a linear systems approach. They review evidence supporting a local, patch-by-patch spatial frequency filtering of visual information rather than the global Fourier analysis other researchers have proposed. A separate chapter addresses the special issues surrounding color vision, and a brief, nonmathematical introduction to linear systems analysis is included for the uninitiated reader.
Author : Linda Kreger Silverman
Publisher : DeLeon Publishing, Incorporated
ISBN 13 : 9781932186000
Total Pages : 442 pages
Book Rating : 4.1/5 (86 download)
Download or read book Upside-down Brilliance written by Linda Kreger Silverman and published by DeLeon Publishing, Incorporated. This book was released on 2002 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Do you know things without being able to explain how or why? Do you solve problems in unusual ways? Do you think in pictures rather than in words? If so, you are not alone. One-third of the population thinks in images. You may be one or you may live with one. If you teach, it is absolutely certain that some of your students.
Author : Laurence Harris
Publisher : Cambridge University Press
ISBN 13 : 9780521430715
Total Pages : 482 pages
Book Rating : 4.4/5 (37 download)
Download or read book Spatial Vision in Humans and Robots written by Laurence Harris and published by Cambridge University Press. This book was released on 1993 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: A book of great interest both to biological researchers and also to designers of robots and computer vision systems.
Author : D.J. Ingle
Publisher : Springer Science & Business Media
ISBN 13 : 9789024731176
Total Pages : 486 pages
Book Rating : 4.7/5 (311 download)
Download or read book Brain Mechanisms and Spatial Vision written by D.J. Ingle and published by Springer Science & Business Media. This book was released on 1984-12-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains chapters derived from a N. A. T. O. Advanced Study Institute held in June 1983. As the director of this A. S. I. it was my hope that some of the e1ectrophysiologists could express the potentialities of their work for perceptual theory, and that some perceptionists could speculate on the underlying "units" of perception in a way that would engage the imagination of physio logists. The reader will have to be the judge of whether this was achieved, or whether such a psychophysiological inter1ingua is still overly idealistic. It is clear that after the revolution prec~pitated by Hube1 and Weisel in understanding of visual cortical neurons we still have only a foggy idea of the behavioral output of any particular species of cortical detector. It was therefore particularly unfortunate that two persons who have made great strides in correlating interesting facets of cat cortical physio logy with human psychophysics (Max Cynader and Martin Regan of Dalhousie University) were unable to attend this meeting. Never theless, a number of new and challenging ideas regarding both spatial perception and cortical mechanisms are represented in this volume, and it is hoped that the reader will remember not only the individual demonstrations but the critical questions posed by the apposition of the two different collections of experimental facts. David Ingle April 1984 VII TABLE OF CONTENTS PREFACE V D. N. Lee and D. S. Young Visual Timing of Interceptive Action 1 J. J.
Author : Michael R. M. Jenkin
Publisher : Oxford University Press
ISBN 13 : 019534670X
Total Pages : 464 pages
Book Rating : 4.1/5 (953 download)
Download or read book Seeing Spatial Form written by Michael R. M. Jenkin and published by Oxford University Press. This book was released on 2005-10-27 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is divided into objects: things that are distinct from their backgrounds and that can move or be moved. Objects are food and prey and threats, as well as neutral items, and it is critical to be able to see them. How the form of an object is distinguished is one of the most basic, yet least understood, topics of research in vision perception. The object-defining system needs to operate in the real world, where objects and viewers move, and where the scene is cluttered, rarely offering a clear, unobscured view of any object. How are we able to see and define objects using the complex pattern of light falling on the retina? An object becomes visible if it differs sufficiently from its surroundings in its luminance, color, texture, motion, or depth. Although the processes that use these different cues are quite distinct, research has shown that they share some organizational principles. This book, Seeing Spatial Form, is dedicated to David Martin Regan who has made so many contributions to our understanding of how we see objects. Its chapters bring together ideas from some of the world's leading researchers in form vision to explain what we know about distinguishing form. The book includes a CD-ROM, which contains additional demonstrations and color images that considerably enhance the chapter contents. Seeing Spatial Form will be an invaluable resource for student and professional researchers in vision science, cognitive psychology, and neuroscience.
Author : Helga Kolb
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (53 download)
Download or read book Webvision written by Helga Kolb and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Terry Caelli
Publisher : Elsevier
ISBN 13 : 1483189147
Total Pages : 208 pages
Book Rating : 4.4/5 (831 download)
Download or read book Visual Perception: Theory and Practice written by Terry Caelli and published by Elsevier. This book was released on 2014-05-09 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual Perception: Theory and Practice focuses on the theory and practice of visual perception, with emphasis on technologies used in vision research and in visual information processing. Central areas of vision research including spatial vision, motion perception, and color are discussed. Light and optics, convolutions and Fourier methods, and network theory and systems are also examined. Comprised of nine chapters, this book begins with an overview of language and processes underlying specific areas of vision such as measures of neural activity, feature specificity, and individual cells and psychophysics. The reader is then systematically introduced to the more essential properties of light and optics relevant to visual perception; the use of convolutions, Fourier series, and Fourier transform to model processes in visual perception; and network theory and systems. Subsequent chapters deal with the geometry of visual perception; spatial vision; the perception of motion; and some specific issues in visual perception, including color perception, binocular vision, and steriopsis. This monograph is intended for students, practitioners, and investigators in physiology.
Author : David Regan
Publisher : Springer
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.3/5 (91 download)
Download or read book Spatial Vision written by David Regan and published by Springer. This book was released on 1991 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald H. Kelly
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (227 download)
Download or read book Role of Retinocortical Processing in Spatial Vision written by Donald H. Kelly and published by . This book was released on 1988 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several important image-processing functions have been proposed for the geometric distortion known as cortical (or more precisely, retinocortical) magnification. This spatial distortion can convert the radial velocities projected on the retina by egocentric motion into uniform, rectilinear motion at the cortex. It can also convert changes of size and orientation in retinal coordinates into mere translation at the cortex. (In both cases, an image-like property is converted into a map-like property.) Thus cortical magnification must play an essential role in forming our stable precepts of the world around us, even as it vexes the question of how the information from different fixations within the same scene can be arranged into a single precept. Is the cortical image subsequently undistorted, just to facilitate the superposition of multiple fixations? An understanding of the image-coding functions of the primary visual cortex (VI) should help to unravel this paradox. Using the tools of computer vision (LISP algorithms developed on Symbolics networks), we are attempting to build a working model that includes such processes as: fixational eye movements, retinal filtering and inhomogeneity, retinocortical mapping, cortical (Gabor) image-coding, and other processes involved in the coordinate shifts needed for mapping purposes. (aw).
Author :
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.F/5 ( download)
Download or read book Spatial Vision written by and published by . This book was released on 1995 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert A. Crone
Publisher : CRC Press
ISBN 13 : 9789026519550
Total Pages : 208 pages
Book Rating : 4.5/5 (195 download)
Download or read book Seeing Space written by Robert A. Crone and published by CRC Press. This book was released on 2003-01-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial vision is a subject in which philosophy, psychology, ophthalmology, neurophysiology and pathology meet. It is the unique contribution of this book that gives a survey of the whole subject, in historical perspective. The author, a former professor of ophthalmology at the University of Amsterdam, is an authority in the field of binocular vision (Diplopia, 1973) and colour vision (History of Color, 1999). Seeing Space is written for ophthalmologists, optometrists, orthoptists and other practitioners of visual science, but also for psychologists and anybody interested in the philosophy and science of perception. The book contains three parts: Part I contains chapters on objective and subjective space and on non-visual space perception. Part II begins with a short survey of the visual system. As eye movements are of crucial importance in the perception of space, the evolution of the eye and the eye movements is described. There are chapters on the perception of direction, stereoscopic depth and movement. A sensorimotor theory of space perception is elaborated. Part III is dedicated to the perception of objects. There are chapters on the perception of contours, surfaces, dimensionality and size (including the "moon illusion"). Finally the problem of the relation between mind and matter is raised, but not solved.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309092086
Total Pages : 333 pages
Book Rating : 4.3/5 (9 download)
Download or read book Learning to Think Spatially written by National Research Council and published by National Academies Press. This book was released on 2005-02-03 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learning to Think Spatially examines how spatial thinking might be incorporated into existing standards-based instruction across the school curriculum. Spatial thinking must be recognized as a fundamental part of Kâ€"12 education and as an integrator and a facilitator for problem solving across the curriculum. With advances in computing technologies and the increasing availability of geospatial data, spatial thinking will play a significant role in the information-based economy of the twenty-first century. Using appropriately designed support systems tailored to the Kâ€"12 context, spatial thinking can be taught formally to all students. A geographic information system (GIS) offers one example of a high-technology support system that can enable students and teachers to practice and apply spatial thinking in many areas of the curriculum.
