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Author : Siobhan Corrigan
Release : 2001
Genre : Color vision
Kind : eBook
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Book Synopsis Figural and Luminance Conditions for Preceived Order of Depth in Illusory Achromatic Transparency by : Siobhan Corrigan
Download or read book Figural and Luminance Conditions for Preceived Order of Depth in Illusory Achromatic Transparency written by Siobhan Corrigan. This book was released on 2001. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alan L. Gilchrist
Release : 2013-09-05
Genre : Psychology
Kind : eBook
Book Rating : 538/5 ( reviews)
Book Synopsis Lightness, Brightness and Transparency by : Alan L. Gilchrist
Download or read book Lightness, Brightness and Transparency written by Alan L. Gilchrist. This book was released on 2013-09-05. Available in PDF, EPUB and Kindle. Book excerpt: 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 :
Release : 2005
Genre : Perception
Kind : eBook
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Book Synopsis Perception by :
Download or read book Perception written by . This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alan Gilchrist
Release : 2006-06-08
Genre : Psychology
Kind : eBook
Book Rating : 512/5 ( reviews)
Book Synopsis Seeing Black and White by : Alan Gilchrist
Download or read book Seeing Black and White written by Alan Gilchrist. This book was released on 2006-06-08. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Rudolf Arnheim
Release : 1954
Genre : Art
Kind : eBook
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Book Synopsis Art and Visual Perception by : Rudolf Arnheim
Download or read book Art and Visual Perception written by Rudolf Arnheim. This book was released on 1954. Available in PDF, EPUB and Kindle. Book excerpt:
