Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"distance perception"”.
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Effects of display contrast and field of view on distance perception
… their effects on observers' ability to estimate distances of targets within natural settings. Images were video taped with a rotating camera and the targets were placed between 9.14 m and 60.96 m from the camera. The fields of view ranged from 20 deg to 74 deg. A lightly wooded area and an open …
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Relative distance perception of sound sources in critical listening environment via binaural reproduction
Accurate distance cues are important in the degree of realism provided by virtual audio systems. In the last decade there has been an increased interest in this research area. The main focus of this research project is to investigate the effect of different acoustic cues related to distance …
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Adult Attachment Orientation and Physical Distance: Do Threat Primes Alter Perceptions of Interpersonal Proximity?
… and interpersonal threat bias people’s perceptions of physical distance within a social context. Across three separate studies, I assessed the interactive effects of attachment anxiety, attachment avoidance, and threat on perceptions of distance. In the baseline (control) condition, I …
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A comparison of spatial interpretations of NASA's payload operations control center, Marshall Space Flight Center, using real world and virtual reality observations
… in general characteristics, object visibility, distance perception, ability to reach an object, and ability to share objects and conversation. Comparisons were analyzed using the Wilcoxon Signed Ranks Test, and I tests. Findings revealed few differences among the real and the VR worlds. Changes …
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Auditory Displays and Assistive Technologies: the use of head movements by visually impaired individuals and their implementation in binaural interfaces
… engage head movement to facilitate auditory perception and to what extent it may be applicable to the design of virtual auditory assistive technology. Three novel experiments are presented; a field study of head movement behaviour during navigation, a questionnaire assessing the self-reported …
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Perceived Depth in Virtual and Physical Environments
… information if information regarding absolute distance is accurate and reliable. However, assessments of stereopsis often report depth distortions, particularly for virtual stimuli. These distortions are often attributed to misestimates of viewing distance caused by limited distance cues and/or …
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An analysis of perceptual errors in perspective displays
… The aim of this thesis was to develop a model of distance estimation errors in perspective displays. It was hypothesised that many of the perceptual errors observed in perspective displays, such as azimuth and inter-object distance estimation errors, were related to observers wrongly estimating …
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Distance Judgments for Joint Action: The Perceptual Consequences of Anticipated Coordination
<p>Recent perception research has revealed that judgments of distance are influenced by the energetic cost required to perform particular actions, such as walking, across these distances (Proffitt, 2006b). However, this prior research has focused almost exclusively on the perceptual consequences of …
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Development and application of an echolocation model inspired by bats
… received signals at the two<br/>ears for varying distances was investigated by measuring the head-related transfer function<br/>(HRTF) of a bat-head cast. It has been reported that a bat changes bandwidth<br/>and duration of its echolocating call as it approaches a target. Adaptive change in …
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Action-Inspired Approach to Design of Navigation Techniques for Effective Spatial Learning in 3-D Virtual Environments
… theories. The theories suggest that action and perception are closely related and core elements of learning. Our observations indicated that specific body-parts are not necessarily related to learning. We identified two types of action-inspired approach, body-turn based and action-transferred. …