Author: Alan L. Gilchrist
Publisher: Psychology Press
ISBN: 1134761538
Category : Psychology
Languages : en
Pages : 332
Get Book Here
Book Description
This volume deals with the visual perception of lightness, brightness, and transparency of surfaces, both under minimal laboratory conditions and in complex images typical of everyday life. Each chapter analyzes the challenging problem of how a pattern of light intensities on the retina is transformed into the visual experience of varying shades of grey, transparent surfaces, and light and shadow. One important theme which unifies the group of contributions is the recognition that the perception of surface lightness is rooted fundamentally in the encoding of relative intensities of light within the retinal image, not intensities per se. A second important unifying theme is an appreciation of the multiple dimensions of the visual experience of lightness, brightness, and transparency -- people do not perceive the lightness of surfaces by discarding information concerning the light illuminating those surfaces; rather, they perceive a pattern of illumination projected onto a pattern of surface greys. The long-fascinating problems of surface lightness and color perception have become very active topics recently as a resurging interest within the visual perception community has coincided with an increasing appreciation of the centrality of these problems by the emerging machine vision community. The best of recent psychophysical work on lightness perception, as presented in this volume, will be of great interest to both of these communities. This book also marks a synthesis of old and new. A traditional, strongly Gestalt, approach that had fallen into neglect is updated in the light of new quantitative systematic methods and important later discoveries, such as the disappearance of stabilized retinal images. The book draws on such diverse approaches as Gestalt and ecological psychology, threshold psychophysics, and computational vision, advancing our understanding of the interrelations among surface color, illumination, perceived depth, shading, and transparency.
Author: Laurence Harris
Publisher: Springer Science & Business Media
ISBN: 0387226737
Category : Medical
Languages : en
Pages : 444
Get Book Here
Book Description
In this book the authors relate and discuss the idea that perceptual processes can be considered at many levels. A phenomenon that appears at one level may not be the same as a superficially similar phenomenon that appears at a different level. For example "induced motion" can be analyzed in terms of eye movements or at the retinal level or at a much higher cognitive level: how do these analyses fit together? The concept of levels also makes us think of the flow of information between levels, which leads to a consideration of the roles of top-down and bottom-up (or feed-forward, feed-back) flow. There are sections devoted to vestibular processing, eye movement processing and processing during brightness perception. The final section covers levels of processing in spatial vision. All scientists and graduate students working in vision will be interested in this book as well as people involved in using visual processes in computer animations, display design or the sensory systems of machines.
Author: Michael S. Gazzaniga
Publisher: MIT Press
ISBN: 9780262071956
Category : Medical
Languages : en
Pages : 1468
Get Book Here
Book Description
This second edition reflects the many advances that have taken place in this field, particularly in imaging and recording techniques. The majority of the chapters in this edition of "The Cognitive Neurosciences" are new, and those from the first edition have been rewritten and updated.
Author: Colin Ware
Publisher: Elsevier
ISBN: 0123814642
Category : Business & Economics
Languages : en
Pages : 537
Get Book Here
Book Description
"This is a book about what the science of perception can tell us about visualization. There is a gold mine of information about how we see to be found in more than a century of work by vision researchers. The purpose of this book is to extract from that large body of research literature those design principles that apply to displaying information effectively"--
Author: Alan Gilchrist
Publisher: Oxford University Press
ISBN: 0198040512
Category : Psychology
Languages : en
Pages : 449
Get Book Here
Book Description
How the human visual system determines the lightness of a surface, that is, its whiteness, blackness, or grayness, remains--like vision in general--a mystery. In fact, we have not even been able to create a machine that can determine, through an artificial vision system, whether an object is white, black, or gray. Although the photoreceptors in the eye are driven by light, the light reflected by a surface does not reveal its shade of gray. Depending upon the level of illumination, a surface of any shade of gray can reflect any amount of light. In Seeing Black and White Alan Gilchrist ties together over 30 years of his own research on lightness, and presents the first comprehensive, historical review of empirical work on lightness, covering the past 150 years of research on images ranging from the simple to the complex. He also describes and analyzes the many theories of lightness--including his own--showing what each can and cannot explain. Gilchrist highlights the forgotten-yet-exciting work done in the first third of the twentieth century, describing several crucial experiments and examining the brilliant but nearly unknown work of the Hungarian gestalt theorist, Lajos Kardos. Gilchrists review also includes a survey of the pattern of lightness errors made by humans, many of which result in delightful illusions. He argues that because these errors are not random, but systematic, they are the signature of our visual software, and so provide a powerful tool that can reveal how lightness is computed. Based on this argument and the concepts of anchoring, grouping, and frames of reference, Gilchrist presents a new theoretical framework that explains an unprecedented array of lightness errors. As both the first comprehensive overview of research on lightness and the first unified presentation of Gilchrists new theoretical framework Seeing Black and White will be an invaluable resource for vision scientists, cognitive psychologists, and cognitive neuroscientists.
Author: Arthur Gilman Shapiro
Publisher: Oxford University Press
ISBN: 019979460X
Category : Games & Activities
Languages : en
Pages : 833
Get Book Here
Book Description
Visual illusions are compelling phenomena that draw attention to the brain's capacity to construct our perceptual world. The Compendium is a collection of over 100 chapters on visual illusions, written by the illusion creators or by vision scientists who have investigated mechanisms underlying the phenomena. --
Author: Josef Albers
Publisher: Yale University Press
ISBN: 0300179359
Category : Art
Languages : en
Pages : 210
Get Book Here
Book Description
An experimental approach to the study and teaching of color is comprised of exercises in seeing color action and feeling color relatedness before arriving at color theory.
Author:
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 636
Get Book Here
Book Description
Author: Alan L. Gilchrist
Publisher: Psychology Press
ISBN: 1134761465
Category : Psychology
Languages : en
Pages : 331
Get Book Here
Book Description
This volume deals with the visual perception of lightness, brightness, and transparency of surfaces, both under minimal laboratory conditions and in complex images typical of everyday life. Each chapter analyzes the challenging problem of how a pattern of light intensities on the retina is transformed into the visual experience of varying shades of grey, transparent surfaces, and light and shadow. One important theme which unifies the group of contributions is the recognition that the perception of surface lightness is rooted fundamentally in the encoding of relative intensities of light within the retinal image, not intensities per se. A second important unifying theme is an appreciation of the multiple dimensions of the visual experience of lightness, brightness, and transparency -- people do not perceive the lightness of surfaces by discarding information concerning the light illuminating those surfaces; rather, they perceive a pattern of illumination projected onto a pattern of surface greys. The long-fascinating problems of surface lightness and color perception have become very active topics recently as a resurging interest within the visual perception community has coincided with an increasing appreciation of the centrality of these problems by the emerging machine vision community. The best of recent psychophysical work on lightness perception, as presented in this volume, will be of great interest to both of these communities. This book also marks a synthesis of old and new. A traditional, strongly Gestalt, approach that had fallen into neglect is updated in the light of new quantitative systematic methods and important later discoveries, such as the disappearance of stabilized retinal images. The book draws on such diverse approaches as Gestalt and ecological psychology, threshold psychophysics, and computational vision, advancing our understanding of the interrelations among surface color, illumination, perceived depth, shading, and transparency.
Author: Christopher Cuttle
Publisher: Routledge
ISBN: 1136437916
Category : Architecture
Languages : en
Pages : 264
Get Book Here
Book Description
Lighting by Design provides guidance on where to find inspiration for lighting ideas, how to plan the technical detail and how to execute the plan to create safe, effective and beautiful schemes. Christopher Cuttle's unique three level approach uses Observation, Visualisation and Realisation as the means to achieve these aims. Cuttle is a well known figure in the UK, US and Australia and New Zealand, with a wealth of experience of both teaching and practice. This new edition is fully updated and produced in full colour with many new diagrams and photographs. It will be immensely useful to professional and student architects, interior designers and specialist lighting designers.
