The Visual World of Shadows

The Visual World of Shadows

Author: Roberto Casati

Publisher: MIT Press

Published: 2023-12-26

Total Pages: 407

ISBN-13: 0262550849

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How the perception of shadows, studied by vision scientists and visual artists, reveals the inner workings of the visual system. In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision—which must distinguish them from objects or material features of objects—and a resource, signaling the presence, location, shape, and size of objects. Casati and Cavanagh draw up an inventory of information retrievable from shadows, showing their amazing variety. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows; shadow ownership, the association of a shadow with the object that casts it; shadow labeling, the visual system's ability to tell shadows from nonshadows; and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency. Finally, they examine the art of the shadow, paying tribute to artists' exploration of shadow, analyzing a series of artworks (reproduced in color) from a rich and fascinating art historical corpus.


The Visual World of Shadows

The Visual World of Shadows

Author: Roberto Casati

Publisher: MIT Press

Published: 2023-12-26

Total Pages: 407

ISBN-13: 0262550849

DOWNLOAD EBOOK

How the perception of shadows, studied by vision scientists and visual artists, reveals the inner workings of the visual system. In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision—which must distinguish them from objects or material features of objects—and a resource, signaling the presence, location, shape, and size of objects. Casati and Cavanagh draw up an inventory of information retrievable from shadows, showing their amazing variety. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows; shadow ownership, the association of a shadow with the object that casts it; shadow labeling, the visual system's ability to tell shadows from nonshadows; and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency. Finally, they examine the art of the shadow, paying tribute to artists' exploration of shadow, analyzing a series of artworks (reproduced in color) from a rich and fascinating art historical corpus.


General Psychology

General Psychology

Author: S K Mangal

Publisher: Sterling Publishers Pvt. Ltd

Published: 2013-08-01

Total Pages: 324

ISBN-13: 9788120707986

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This book provides valuable insight into the nature and the background of the subject of Psychology. Designed basically as a textbook for general psychology courses of Indian universities, it will also prove useful to those working in the disciplines of sociology, education, social work and social sciences. The subject matter in the text has been presented in such a way that t can be easily grasped by a beginner and appreciated by an advanced reader.


Perception as Bayesian Inference

Perception as Bayesian Inference

Author: David C. Knill

Publisher: Cambridge University Press

Published: 1996-09-13

Total Pages: 534

ISBN-13: 9780521461092

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This 1996 book describes an exciting theoretical paradigm for visual perception based on experimental and computational insights.


Shadows and Enlightenment

Shadows and Enlightenment

Author: Michael Baxandall

Publisher: Yale University Press

Published: 1997-01-01

Total Pages: 228

ISBN-13: 9780300072723

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Shadows are holes in light. We see them all the time, and sometimes we notice them, but their part in our visual experience of the world is mysterious. In this book, an art historian draws on contemporary cognitive science, eighteenth-century theories of visual perception, and art history to discuss shadows and the visual knowledge they can offer.


Virtual Environments ’95

Virtual Environments ’95

Author: Martin Göbel

Publisher: Springer

Published: 1995-09-14

Total Pages: 324

ISBN-13:

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Virtual Environments - (VE) the new dimension in man-machine communication - have been developed and experienced in Europe since 1990. In September 1993 the first workshop on VEs was held in Barcelona, Spain, in conjunction with the annual Eurographics conference. The workshop brought together about 35 researchers from Europe and the US. The second workshop was held together with Imagina ’95 in Monte Carlo, Monaco. This time, around 40 researchers from Europe, the US, but also from Asia met for a 2-day exchange of experience. While in the first workshop in 1993 many concepts in VE were presented, the ’95 workshop showed up various applications in different areas and demonstrated quite clear that Virtual Environments are now under use in interactive applications. The book contains 22 selected and revised papers that have been presented in EG workshops in Barcelona and Monte Carlo. The areas covered are visual presentation aspects, gesture and speech interaction issues, applications and VE system, demonstrating very clearly the emphasis and the results of various research activities in the field.


Perceiving in Depth, Volume 3: Other Mechanisms of Depth Perception

Perceiving in Depth, Volume 3: Other Mechanisms of Depth Perception

Author: Ian P. Howard

Publisher: Oxford University Press

Published: 2012-01-27

Total Pages: 399

ISBN-13: 019987736X

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The three-volume work Perceiving in Depth is a sequel to Binocular Vision and Stereopsis and to Seeing in Depth, both by Ian P. Howard and Brian J. Rogers. This work is much broader in scope than the previous books and includes mechanisms of depth perception by all senses, including aural, electrosensory organs, and the somatosensory system. Volume 1 reviews sensory coding, psychophysical and analytic procedures, and basic visual mechanisms. Volume 2 reviews stereoscopic vision. Volume 3 reviews all mechanisms of depth perception other than stereoscopic vision. The three volumes are extensively illustrated and referenced and provide the most detailed review of all aspects of perceiving the three-dimensional world. Volume 3 addresses all depth-perception mechanisms other than stereopsis. The book starts with an account of monocular cues to depth, including accommodation, vergence eye movements, perspective, interposition, shading, and motion parallax. A chapter on constancies in depth perception, such as the ability to perceive the sizes and shapes of objects as they move or rotate in depth, is followed by a chapter on the ways in which depth cues interact. The next chapter reviews sources of information, such as changing disparity, image looming, and vergence eye movements, used in the perception of objects moving in depth. Various pathologies of depth perception, including visual neglect, stereoanomalies, and albanism are reviewed. Visual depth-perception mechanisms through the animal kingdom are described, starting with insects and progressing through crustaceans, fish, amphibians, reptiles, birds, and mammals. The chapter includes a discussion of how stereoscopic vision may have evolved. The next chapter describes how visual depth perception is used to guide reaching movements of the hand, avoiding obstacles, and walking to a distant object. The next three chapters review non-visual mechanisms of depth perception. Auditory mechanisms include auditory localization, echolocation in bats and marine mammals, and the lateral-line system of fish. Some fish emit electric discharges and then use electric sense organs to detect distortions of the electric field produced by nearby objects. Some beetles and snakes use heat-sensitive sense organs to detect sources of heat. The volume ends with a discussion of mechanisms used by animals to navigate to a distant site. Ants find their way back to the nest by using landmarks and by integrating their walking movements. Several animals navigate by the stars or by polarized sunlight. It seems that animals in several phyla navigate by detecting the Earths magnetic field.


Stevens' Handbook of Experimental Psychology, Sensation and Perception

Stevens' Handbook of Experimental Psychology, Sensation and Perception

Author: Steven Yantis

Publisher: John Wiley and Sons

Published: 2002-10-23

Total Pages: 820

ISBN-13: 0471207853

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Now available in paperback. This revised and updated edition of the definitive resource for experimental psychology offers comprehensive coverage of the latest findings in the field, as well as the most recent contributions in methodology and the explosion of research in neuroscience. Volume One: Sensation and Perception focuses on sensory experience and complex learned perceptions through modalities such as vision, touch, smell, and hearing.


Shadows of the Mind

Shadows of the Mind

Author: Roger Penrose

Publisher: Oxford University Press, USA

Published: 1994

Total Pages: 484

ISBN-13: 9780195106466

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Presents the author's thesis that consciousness, in its manifestation in the human quality of understanding, is doing something that mere computation cannot; and attempts to understand how such non-computational action might arise within scientifically comprehensive physical laws.


Sensation, Perception and Action

Sensation, Perception and Action

Author: Johannes Zanker

Publisher: Bloomsbury Publishing

Published: 2010-03-02

Total Pages: 350

ISBN-13: 1137092106

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With a style that is both detailed and accessible, this new text from Johannes Zanker provides students with a solid understanding of how our sensory and perceptual systems operate, and interact with a dynamic world. It not only explains the scientific mechanisms involved, but discusses the costs and benefits of these mechanisms within an evolutionary, functional framework, to encourage important questions such as: What is a given sensory mechanism needed for? What kind of problem can it solve and what are its limitations? How does the environment determine how senses operate? How does action affect and facilitate perception? This unique, interdisciplinary framework allows students to see perceiving and acting as embedded in particular environments and directs them to think about the functional nature of these systems. The overall effect is an especially readable, authoritative text on Sensation, Perception and Action that really brings this fascinating topic to life.