Surround-screen projection-based virtual reality

Cruz-Neira, Carolina; Sandin, Daniel J.; DeFanti, Thomas A.

doi:10.1145/166117.166134

Cited by 1,565 publications

(74 citation statements)

References 7 publications

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“…Virtual reality systems (B.2-6) provide computerized ways to generate the same effect: by registering the position of the viewer, the electronic display image can be recalculated to simulate how a real object would look from the new point of view. There are different ways to reproduce this effect in virtual reality which generally require tracking head position; the displays can be worn (head-mounted displays), the displays can cover most of the surroundings of the viewer (immersive VR [Cruz-Neira et al 1993]), and a single display can serve as a window to the virtual world (fish tank VR )-see [Bowman et al 2004] for a comprehensive classification of VR display possibilities.…”

Section: Resultsmentioning

confidence: 99%

The Effects of Changing Projection Geometry on Perception of 3D Objects on and Around Tabletops

Nacenta

Hancock

Gutwin

et al. 2016

ACM Trans. Comput.-Hum. Interact.

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________________________________________________________________________Displaying 3D objects on horizontal displays can cause problems in the way that the virtual scene is presented on the 2D surface; inappropriate choices in how 3D is represented can lead to distorted images and incorrect object interpretations. We present four experiments that test 3D perception. We varied projection geometry in three ways: type of projection (perspective/parallel), separation between the observer's point of view and the projection's center (discrepancy), and presence of motion parallax (with/without parallax). Projection geometry had strong effects different for each task. Reducing discrepancy is desirable for orientation judgments, but not for object recognition or internal angle judgments. Using a fixed center of projection above the table reduces error and improves accuracy in most tasks. The results have far-reaching implications for the design of 3D views on tables, in particular for multi-user applications where projections that appear correct for one person will not be perceived correctly by another.

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Section: Resultsmentioning

confidence: 99%

The Effects of Changing Projection Geometry on Perception of 3D Objects on and Around Tabletops

Nacenta

Hancock

Gutwin

et al. 2016

ACM Trans. Comput.-Hum. Interact.

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“…It was based on perspectives acquired via a viewer-centered headtracking system, and uses LCD stereo shutter glasses [20], [21], [22]. The GAVA was developed as a CAVE based system for remote communication service with the concept of space sharing, including sharing the atmosphere.…”

Section: Immersionmentioning

confidence: 99%

Virtual Reality Technologies in Telecommunication Services

Nagata

Mikami

Miyashita

et al. 2017

Journal of Information Processing

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Telecommunication service has been growing and progressing from telephone to high reality communication systems that are based on evolution of network and media technologies. Recognizing virtual reality (VR) as a communication tool, we provide a review of communication services and the directions they are moving in, as well as related VR technologies. The Immersive Telepresence System "Kirari!" is also introduced as the latest development example for a new telecommunication service.

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“…By using synchronized stereo projectors, these screens can have multiple users at the same time (see figure 2.2). If there is a need for an even more immersive experience, the projection can be made on multiple sides of a room-sized cube, also known as a Cave Automatic Virtual Environment (CAVE) [7]. Another option is to have a cylindrical or dome-shaped screen, which covers a large part of the user's field of view.…”

Section: World Fixed Displaysmentioning

confidence: 99%

Driving in Virtual Reality: Investigations in Effects of Latency and Level of Virtuality

Blissing¹

2016

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When developing new active safety systems or improving existing systems, conducting performance evaluations is necessary. By performing these evaluations during early development stages, potential problems can be identified and mitigated before the system moves into the production phase.Testing active safety systems can be difficult since the characteristic scenarios may have complex interactions. Using real vehicles for performing these types of scenarios is difficult, expensive, and potentially dangerous. Alternative methods, such as using inflatable targets, scale models, computer simulations or driving simulators, also suffer from drawbacks. Consequently, using virtual reality as an alternative to the traditional methods has been proposed. In this case, a real vehicle is driven while wearing a head-mounted display that presents the scenario to the driver.This research aims to investigate the potential of such technology. Specifically, this work investigates how the chosen technology affects the driver. This investigation has been conducted through a literature review. A test platform was constructed, and two user studies using normal drivers were performed. The first study focused on the effects of visual time delays on driver behavior. This study revealed that lateral behavior changes with added time delays, whereas longitudinal behavior appears unaffected. The second study investigated how driver behavior is affected by different modes of virtuality. This study demonstrated that drivers perceived mixed reality as more difficult than virtual reality.The main contribution of this work is the detailed understanding of how time delays and different modes of virtuality affect drivers. This is important knowledge for selecting which scenarios are suitable for evaluation using virtual reality. Keywords PapersThe following four appended papers are arranged in chronological order of publication and will be referred to by their Roman numerals. All papers are printed in their original published state with the exception of minor errata and changes in text and figure layout in order to maintain consistency throughout the thesis. In papers [I], [II], [III] and [IV], the first author is the main author, responsible for the work presented, with additional support from the co-authors. A short summary of each paper can be found in chapter 4.[I] Björn Blissing, Fredrik Bruzelius, and Johan Ölvander." [VIII] Lars Eriksson, Lisa Palmqvist, Jonas Andersson Hultgren, Björn Blissing, and Steven Nordin. "Performance and presence with head-movement produced motion parallax in simulated driving".

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Surround-screen projection-based virtual reality

Cited by 1,565 publications

References 7 publications

The Effects of Changing Projection Geometry on Perception of 3D Objects on and Around Tabletops

The Effects of Changing Projection Geometry on Perception of 3D Objects on and Around Tabletops

Virtual Reality Technologies in Telecommunication Services

Driving in Virtual Reality: Investigations in Effects of Latency and Level of Virtuality

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