Absolute And Relative Visual Direction Of Monocular And Binocular Targets
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Absolute And Relative Visual Direction Of Monocular And Binocular Targets
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Author : Alistair P. Mapp
language : en
Publisher:
Release Date : 2019
Absolute And Relative Visual Direction Of Monocular And Binocular Targets written by Alistair P. Mapp and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Seven experiments designed to measure the accuracy and precision of absolute and relative direction judgments under monocular and binocular viewing conditions are presented. The experiments assess the validity of claims in the literature that (a) the cyclopean eye (the centre from which visual direction judgments are made) is not fixed in the head, but moves along the interocular axis as a function of the stimulus situation and the eye(s) used to view the stimuli, and (b) absolute direction during monocular viewing is based on signals from the viewing eye only. The results of the experiments refute these claims and elucidate which types of visual direction tasks are germane to specifying the location of the cyclopean eye. Specifically, the results show that monocular relative direction judgments are highly accurate and precise, are independent of binocular eye position, and cannot be used as the basis from which to infer the position of the cyclopean eye. Absolute direction judgments, on the other hand, are less precise than relative direction judgments, and the accuracy of both monocular and binocular absolute direction judgments is dependent upon binocular eye position. When the eyes converge accurately on the target of interest, absolute direction judgments are accurate. When the eyes converge inaccurately on the target of interest, which is often the case during monocular fixation, absolute direction judgments are inaccurate. These results clarify the important distinction between relative and absolute visual direction and are discussed in terms of how visual directions specified from the cyclopean eye (perceptual variables) are derived from the inputs from the two eyes (physical variables).
Visual Direction Of Monocular Targets As Influenced By Surrounding Binocular Targets
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Author : Srividhya Hariharan Vilupuru
language : en
Publisher:
Release Date : 2006
Visual Direction Of Monocular Targets As Influenced By Surrounding Binocular Targets written by Srividhya Hariharan Vilupuru and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Binocular vision categories.
Perception
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Author :
language : en
Publisher:
Release Date : 2009
Perception written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Perception categories.
Technical Report
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Author : Human Resources Research Organization
language : en
Publisher:
Release Date : 1968
Technical Report written by Human Resources Research Organization and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Human engineering categories.
Binocular Vision
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Author : David Regan
language : en
Publisher: Springer
Release Date : 1991
Binocular Vision written by David Regan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Medical categories.
Perceiving In Depth Volume 2 Stereoscopic Vision
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Author : Ian P. Howard
language : en
Publisher: Oxford University Press
Release Date : 2012-01-27
Perceiving In Depth Volume 2 Stereoscopic Vision written by Ian P. Howard and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-27 with Psychology categories.
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 2 addresses stereoscopic vision in cats and primates, including humans. It begins with an account of the physiology of stereoscopic mechanisms. It then deals with binocular rivalry, binocular summation, binocular masking, and the interocular transfer of visual effects, such as the motion aftereffect and visual learning. The geometry of the region in binocular space that creates fused images (the horopter) is discussed in some detail. Objects outside the horopter produce images with binocular disparities that are used for stereoscopic vision. Two chapters provide accounts of mechanisms that bring the images into binocular register and of stimulus tokens that are used to detect binocular disparities. Another chapter discusses cyclopean effects, such as cyclopean illusions, cyclopean motion, and binocular direction that are seen only with binocular vision. Stereoacuity is the smallest depth interval that can be detected. Methods of measuring stereoacuity and factors that influence it are discussed. Two chapters deal with the various types of binocular disparity and the role of each type in stereoscopic vision. Another chapter deals with visual effects, such as figure perception, motion perception, and whiteness perception that are affected by the relative distances of stimuli. The spatiotemporal aspects of stereoscopic vision, including the Pulfrich stereomotion effect are reviewed. The volume ends with an account of techniques used to create stereoscopic displays and of the applications of stereoscopy.
Perceiving In Depth Volume 2
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Author : Ian P. Howard
language : en
Publisher: OUP USA
Release Date : 2012-02-24
Perceiving In Depth Volume 2 written by Ian P. Howard and has been published by OUP USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-24 with Medical categories.
Volume 2 addresses stereoscopic vision. It starts with the physiology of stereoscopic mechanisms. It then deals with binocular rivalry, binocular summation, and interocular transfer. A review of how images are brought into binocular register is followed by a review of stimulus tokens used to detect disparities. Cyclopean effects, such as cyclopean illusions, cyclopean motion, texture segregation, and binocular direction are reviewed. Factors that influence stereoacuity are discussed. Two chapters describe how stimuli in distinct depth planes produce contrast effects, and affect motion perception and whiteness perception. The Pulfrich stereomotion effect and perception of motion in depth are reviewed. The volume ends with a review of applications of stereoscopy.
The Visual Perception Of Size And Distance
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Author : Walter Charles Gogel
language : en
Publisher:
Release Date : 1962
The Visual Perception Of Size And Distance written by Walter Charles Gogel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Visual perception categories.
Binocular Vision And Stereopsis
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Author : Ian P. Howard
language : en
Publisher: Oxford University Press, USA
Release Date : 1995
Binocular Vision And Stereopsis written by Ian P. Howard and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Medical categories.
This is a comprehensive survey of binocular vision, with an emphasis on its role in the perception of a three-dimensional world. The central theme is biological vision. Machine vision and computational models are discussed where they contribute to an understanding of living systems.
Perceiving In Depth Volume 3 Other Mechanisms Of Depth Perception
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Author : Ian P. Howard
language : en
Publisher: Oxford University Press
Release Date : 2012-01-27
Perceiving In Depth Volume 3 Other Mechanisms Of Depth Perception written by Ian P. Howard and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-27 with Psychology categories.
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.