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 20 of 308 for “"Virtual Environments"”.
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Navigating Virtual Environments At Scale
Using real walking for virtual exploration generally delivers most immersive VR experience, however, it is limited by the availability of physical tracking space.Virtual spaces beyond the size of tracked space are inaccessible. Limiting virtual world to match the shape and size of physical space is …
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Collaborative Interaction in Virtual Environments
Collaborative virtual environments (CVEs) extend existing virtual environment (VE) technology to enable it to run over a network (e.g. the Internet), and introduce mechanisms that allow multiple people to co-exist, be aware of each other’s presence (e.g. through avatars) and communicate. CVEs are …
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Conformal Tracking For Virtual Environments
A virtual environment is a set of surroundings that appears to exist to a user through sensory stimuli provided by a computer. By virtual environment, we mean to include environments supporting the full range from VR to pure reality. A necessity for virtual environments is knowledge of the location …
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Sensorimotor experience in virtual environments
… interventions including movement repetition in a virtual reality environment, The objective of this research work was to investigate functional specific measurements (kinematic, behavioral) and neural correlates of motor experience of hand gesture activities in virtual environments stimulating …
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Designing virtual environments for usability
This thesis investigates user interaction in virtual environments and usability requirements to support that interaction. Studies of the design and use of virtual environments are used to demonstrate the need for interface design guidance. A theory of interaction for virtual environments is …
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Speech perception in virtual environments
Many virtual environments like interactive computer games, educational software or training simulations make use of speech to convey important information to the user. These applications typically present a combination of background music, sound effects, ambient sounds and dialog simultaneously to …
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Scalable immersive audio for virtual environments
… for simulated sound propagation. In a real-time virtual reality game environment, the system is able to handle dynamic geometry and movable sound sources in full 3D at interactive rates. To test the implementation, I developed a VR-compatible video game for desktop and mobile platforms with an …
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Spatial Navigation in Immersive Virtual Environments
Pedestrian movement studies in real environments have shown consistent statistical relationships between ‘configurational’ properties of spatial layouts and movement flows, facilitating prediction of movement from designs. However, these studies are at an aggregate level and say nothing about how …
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Using programming tools in virtual environments
… as the key to understanding the success of a virtual environment. In this research we focus on desktop virtual environment authoring tools. We believe that presence is also important in authoring tools because with greater presence, people can enjoy the process of building virtual environments …
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Identity through Fashion in Virtual Environments
… the formation of identity through dress in virtual environments, and to establish connections between identity, fashion, and virtual reality by means of language and semiology. The notion of identity through fashion in virtual environments is examined, with fashion as a factor in identity …
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Distributed shared memory for virtual environments
This work investigated making virtual environments easier to program, by designing a suitable distributed shared memory system. To be usable, the system must keep latency to a minimum, as virtual environments are very sensitive to it. The resulting design is push-based and non-consistent. Another …
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Developing architectural visualization using virtual environments
This thesis anticipates the emergence of virtual reality (VR) technology as an economical alternative to architectural presentation. As professionals, designers are trained to interpret two dimensional media spatially. Experience has shown that client (or user) interpretation of traditional media …
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Nuance-Oriented Interfaces in Virtual Environments
Virtual Environment (VE) user interfaces do not generally support personalized interaction or the ability to adapt to the user. Our research is developing nuance-oriented interfaces that take advantage of subtle clues that users give in their actions. To that end, we have performed five experiments …
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Controlling Scalability in Distributed Virtual Environments
A Distributed Virtual Environment (DVE) system provides a shared virtual environment where physically separated users can interact and collaborate over a computer network. More simultaneous DVE users could result in intolerable system performance degradation. We address the three major challenges …
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Affordances In The Design Of Virtual Environments
… the dynamic multimodal interactions inherent to virtual environment (VE) interaction. Theories of direct perception, in particular affordance theory, may prove particularly relevant to enhancing VE interaction design. The present research constructs a conceptual model of how affordances are …
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Upper extremity rehabilitation using interactive virtual environments
… after the stroke. The NJIT Robot Assistive Virtual Rehabilitation (NJIT-RAVR) system has been developed to study optimal strategies for rehabilitation of arm and hand function. Several commercial available devices, such as HapticMaster^{TM}, Cyberglove^{TM}, trakSTAR^{TM} and …
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Visual-haptic interactions in multimodal virtual environments
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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Training spatial knowledge acquisition using virtual environments
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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DirectIVE-- choreographing media for interactive virtual environments
Thesis (M.S.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, June 1997.
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Assessing Negative Side Effects in Virtual Environments
Virtual environment (VE) systems have been touted as exciting new technologies with many varied applications. Today VEs are used in telerobotics, training, simulation, medicine, architecture, and entertainment. The future use of VEs seems limited only by the creativity of its designers. However, as …
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