Author: Daniel J. JobsonPublisher:
ISBN:
Category : Computer vision
Languages : en
Pages : 36
Book Description
Spatial Vision Processes
Author: Daniel J. JobsonPublisher:
ISBN:
Category : Computer vision
Languages : en
Pages : 36
Book Description
Emergent Techniques for Assessment of Visual Performance
Author: National Research CouncilPublisher: National Academies Press
ISBN:
Category : Medical
Languages : en
Pages : 75
Book Description
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.
Spatial Vision Processes: From the Optical Image to the Symbolic Structures of Contour Information
Author: Daniel J. JobsonSpatial Vision Processes
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722793548
Category :
Languages : en
Pages : 30
Book Description
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...
Spatial Vision
Author: Russell L. De ValoisPublisher:
ISBN:
Category : Space perception
Languages : en
Pages :
Book Description
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.
Spatial Vision
Author: Russell L. DeValoisPublisher: Oxford University Press
ISBN: 0198021720
Category : Psychology
Languages : en
Pages : 396
Book Description
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.
Brain Mechanisms and Spatial Vision
Author: D.J. InglePublisher: Springer Science & Business Media
ISBN: 9789024731176
Category : Psychology
Languages : en
Pages : 486
Book Description
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.
Spatial Vision in Humans and Robots
Author: Laurence HarrisPublisher: Cambridge University Press
ISBN: 9780521430715
Category : Computers
Languages : en
Pages : 482
Book Description
A book of great interest both to biological researchers and also to designers of robots and computer vision systems.
Webvision
Author: Helga KolbSpatial Vision
Author: Russell L. DeValoisPublisher: Oxford University Press
ISBN: 019506657X
Category : Medical
Languages : en
Pages : 396
Book Description
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 systemsapproach. 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, nonmathematicalintroduction to linear systems analysis is included for the uninitiated reader.