Studies Of Human Depth Perception In Real And Pictured Environments
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| Author | : Emily Averill Cooper |
| Publisher | : |
| Total Pages | : 160 |
| Release | : 2012 |
| Genre | : |
| ISBN | : |
Determining the three-dimensional (3D) layout of the natural environment is an important but difficult visual function. It is difficult because the 3D layout of a scene and the shapes of 3D objects are not explicit in the 2D retinal images. The visual system uses both binocular (two eyes) and monocular (one eye) cues to determine 3D layout from these images. The same cues that are used to determine the layout of real scenes are also present in photographs and realistic pictures of 3D scenes. The work described in this dissertation examines how people perceive 3D layout in the natural environment and in pictures. Chapter 1 provides an introduction to the specific 3D cues that will be studied. Chapter 2 describes a series of experiments examining how the visual system's use of binocular cues might be adaptive to improve depth perception in the natural environment. Chapter 3 describes a series of experiments examining how the visual system interprets monocular linear perspective cues, and how this can lead to perceptual distortions in perceived 3D from pictures. Chapter 4, the Conclusion, discusses how the work described in this dissertation might be applied to creating better displays and pictures.
| Author | : Ian P. Howard |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2012 |
| Genre | : Binocular vision |
| ISBN | : 9780199913756 |
"The proposed three volumes are the latest installment in Ian Howard's amazing ongoing project of providing the most comprehensive review available anywhereof all aspects of how humans and animals perceive and navigate the three-dimensional world. The current book set is even more complete in its coverage than the two previous editions have been. With 37 chapters, 1800 illustrations, and 8,000 references, it covers psychophysics, coding, physiology, development of systems and functions, results of deprivation, accommodation, physiology of disparity, binocular fusion and rivalry, binocular correspondence and the horopter, linking binocular images, cyclopean perception, stereo acuity, uses of disparity, stereopsis and perceptual organization, the Pulfrich effect, stereoscopic techniques and applications, distinguishing depth from vergence, perspective, shading, and motion parallax, constancies in visual depth perception, cue integrations, motion in depth, pathology of visual depth perception, animal depth perception, feeling, reaching, and moving, auditory distance perception, electrolocation and the thermal senses, as well as comprehensive coverage of animal navigation that could be a book on its own. Ian Howard's books have become landmarks in the field of vision science, and this current project will definitely maintain the tradition for researchers in space perception, visual neuroscience, ophthalmology, optometry, visual development, animal vision, and computational vision"--
| Author | : Myron L. Braunstein |
| Publisher | : Academic Press |
| Total Pages | : 215 |
| Release | : 2014-05-10 |
| Genre | : Psychology |
| ISBN | : 1483276570 |
Series in Cognition and Perception: Depth Perception Through Motion focuses on the processes, methodologies, and techniques involved in depth perception through motion, including optic array, rigid motions, illusions, and axis. The book first elaborates on the paradox of depth perception, illusions of motion in depth, and optic array. Discussions focus on rigid motions in three-dimensional space, perspective gradients, projection plane, stereokinetic effect, rotating trapezoid, and the windmill and fan illusions. The text then examines transformations leading to the perception of depth, slant perception, and perceived direction of rotary motion. Topics include shadow and computer projections, direct observation of rotating figures, a model of the perception of rotary motion, dynamic slant and static slant perception, translations along the Z axis, and rotations about the X or Y axis. The publication is intended for researchers and graduate students interested in depth perception in dynamic environments.
| Author | : Stephen Ellis |
| Publisher | : CRC Press |
| Total Pages | : 651 |
| Release | : 2003-09-02 |
| Genre | : Technology & Engineering |
| ISBN | : 0203221273 |
Advances in the quality and accessibility of computer graphics has provided new pictorial displays and the tools with which to control them. These new display technologies have focused interest on how to design the static and dynamic images they produce to ensure effective communication. This book, based on the conference on Spatial Displays and Spatial instruments held at the Asilomar Conference Centre in 1987, focuses on the geometry of this communication. It is intended to be a source book of theoretical analysis, experimental demonstrations and practical examples from a range of contributors interested in pictorial communication, from medical artists to astronauts. The book offers the theoretical background and practical guidance needed by designers of contemporary 2D and 3D graphical computer interfaces. Its major contribution lies in its outlining of the elements of human perception and motor control which underlie the geometric design of head-mounted graphics for virtual reality displays.
| Author | : Dale Avers |
| Publisher | : Elsevier Health Sciences |
| Total Pages | : 736 |
| Release | : 2019-10-24 |
| Genre | : Medical |
| ISBN | : 0323610153 |
Offering a comprehensive look at physical therapy science and practice, Guccione’s Geriatric Physical Therapy, 4th Edition is a perfect resource for both students and practitioners alike. Year after year, this text is recommended as the primary preparatory resource for the Geriatric Physical Therapy Specialization exam. And this new fourth edition only gets better. Content is thoroughly revised to keep you up to date on the latest geriatric physical therapy protocols and conditions. Five new chapters are added to this edition to help you learn how to better manage common orthopedic, cardiopulmonary, and neurologic conditions; become familiar with functional outcomes and assessments; and better understand the psychosocial aspects of aging. In all, you can rely on Guccione’s Geriatric Physical Therapy to help you effectively care for today’s aging patient population. Comprehensive coverage of geriatric physical therapy prepares students and clinicians to provide thoughtful, evidence-based care for aging patients. Combination of foundational knowledge and clinically relevant information provides a meaningful background in how to effectively manage geriatric disorders Updated information reflects the most recent and relevant information on the Geriatric Clinical Specialty Exam. Standard APTA terminology prepares students for terms they will hear in practice. Expert authorship ensures all information is authoritative, current, and clinically accurate. NEW! Thoroughly revised and updated content across all chapters keeps students up to date with the latest geriatric physical therapy protocols and conditions. NEW! References located at the end of each chapter point students toward credible external sources for further information. NEW! Treatment chapters guide students in managing common conditions in orthopedics, cardiopulmonary, and neurology. NEW! Chapter on functional outcomes and assessment lists relevant scores for the most frequently used tests. NEW! Chapter on psychosocial aspects of aging provides a well-rounded view of the social and mental conditions commonly affecting geriatric patients. NEW! Chapter on frailty covers a wide variety of interventions to optimize treatment. NEW! Enhanced eBook version is included with print purchase, allowing students to access all of the text, figures, and references from the book on a variety of devices.
| Author | : Margaret A. Hagen |
| Publisher | : Academic Press |
| Total Pages | : 381 |
| Release | : 2014-05-10 |
| Genre | : Design |
| ISBN | : 1483259560 |
Durer's Devices: Beyond the Projective Model of Pictures is a collection of papers that discusses the nature of picture making and perception. One paper presents a perceptual theory of pictorial representation in which cultural and historical options in styles of depiction that appear to be different are actually closely related perceptually. Another paper discusses pictorial functions and perceptual structures including pictorial representation, perceptual theory, flat canvass, and the deep world. One paper suggests that perception can be more a matter of information "make up" than "pick up." Light becomes somewhat informative and the eye, correspondingly, becomes less or more presumptive. Another paper notes that human vision is transformed by our modes of representation, that image formation can be essentially incomplete, false, or misleading (primarily as regards dramatic performance and pictorial representation). One paper makes three claims that: (1) the blind have untapped depiction abilities; (2) haptics, involving the sense of touch, have an intuitive sense of perspective; and (3) depiction is perceptual based on graphic elements and pictorial configurations. The collection is suitable for psychologists, physiologists, psychophysicists, and researchers in human perception or phenomenology.
| Author | : Ian P. Howard |
| Publisher | : OUP USA |
| Total Pages | : 672 |
| Release | : 2012-02-24 |
| Genre | : Psychology |
| ISBN | : 019976414X |
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 1 starts with a review of the history of visual science from the ancient Greeks to the early 20th century with special attention devoted to the discovery of the principles of perspective and stereoscopic vision. The first chapter also contains an account of early visual display systems, such as panoramas and peepshows, and the development of stereoscopes and stereophotography. A chapter on the psychophysical and analytic procedures used in investigations of depth perception is followed by a chapter on sensory coding and the geometry of visual space. An account of the structure and physiology of the primate visual system proceeds from the eye through the LGN to the visual cortex and higher visual centers. This is followed by a review of the evolution of visual systems and of the development of the mammalian visual system in the embryonic and post-natal periods, with an emphasis on experience-dependent neural plasticity. An account of the development of perceptual functions, especially depth perception, is followed by a review of the effects of early visual deprivation during the critical period of neural plasticity on amblyopia and other defects in depth perception. Volume 1 ends with accounts of the accommodation mechanism of the human eye and vergence eye movements.
| Author | : Brian A. Wandell |
| Publisher | : Sinauer Associates, Incorporated |
| Total Pages | : 508 |
| Release | : 1995 |
| Genre | : Medical |
| ISBN | : |
Designed for students, scientists and engineers interested in learning about the core ideas of vision science, this volume brings together the broad range of data and theory accumulated in this field.
| Author | : Ian P. Howard |
| Publisher | : Oxford University Press |
| Total Pages | : 399 |
| Release | : 2012-01-27 |
| Genre | : Psychology |
| ISBN | : 019987736X |
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.
| Author | : Jennifer Walinga |
| Publisher | : Hasanraza Ansari |
| Total Pages | : 810 |
| Release | : |
| Genre | : Body, Mind & Spirit |
| ISBN | : |
This book is designed to help students organize their thinking about psychology at a conceptual level. The focus on behaviour and empiricism has produced a text that is better organized, has fewer chapters, and is somewhat shorter than many of the leading books. The beginning of each section includes learning objectives; throughout the body of each section are key terms in bold followed by their definitions in italics; key takeaways, and exercises and critical thinking activities end each section.
