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Understanding and Manipulating Eye Height to Change the User's Experience of Perceived Space in Virtual Reality

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Understanding and Manipulating Eye Height to Change the User's Experience of Perceived Space in Virtual Reality by Markus Leyrer
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Today, virtual reality technology is a multi-purpose tool for diverse applications in various domains. However, research has shown that virtual worlds are often not perceived in scale, especially regarding egocentric distances, as the programmer intended them. While the main reason for this misperception of distances in virtual environments is still unknown, this dissertation investigates one specific aspect of fundamental importance to distance perception ? eye height. In human perception, the ability to determine eye height is essential, because eye height is used to perceive heights of objects, velocity, affordances and distances, all of which allow for successful environmental interaction. It is reasonably well understood how eye height is used to determine many of these percepts. Yet, how eye height itself is determined is still unknown. In multiple studies conducted in virtual reality and the real world, this dissertation investigates how eye height might be determined in common scenarios in virtual reality. Using manipulations of the virtual eye height and distance perception tasks, the results suggest that humans rely more on their body-based information to determine their eye height, if they have no possibility for calibration. This has major implications for many existing virtual reality setups. Because humans rely on their body-based eye height, this can be exploited to systematically alter the perceived space in immersive virtual environments, which might be sufficient to enable every user an experience close to what was intended by the programmer.
Release date Australia
December 31st, 2014
Country of Publication
Logos Verlag Berlin GmbH
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