scholarly journals Distance Compression in the HTC Vive Pro: A Quick Revisitation of Resolution

2021 ◽  
Vol 2 ◽  
Author(s):  
Lauren Buck ◽  
Richard Paris ◽  
Bobby Bodenheimer
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Distance Perception ◽  
Spatial Perception ◽  
Target Object ◽  
Extensive Study ◽  
Immersive Virtual Environments ◽  
Two Systems

Spatial perception in immersive virtual environments, particularly regarding distance perception, is a well-studied topic in virtual reality literature. Distance compression, or the underestimation of distances, is and has been historically prevalent in all virtual reality systems. The problem of distance compression still remains open, but recent advancements have shown that as systems have developed, the level of distance compression has decreased. Here, we add evidence to this trend by beginning the assessment of distance compression in the HTC Vive Pro. To our knowledge, there are no archival results that report any findings about distance compression in this system. Using a familiar paradigm for studying distance compression in virtual reality hardware, we asked users to blind walk to a target object placed in a virtual environment and assessed their judgments based on those distances. We find that distance compression in the HTC Vive Pro mirrors that of the HTC Vive. Our results are not particularly surprising, considering the nature of the differences between the two systems, but they lend credence to the finding that resolution does not affect distance compression. More extensive study should be performed to reinforce these results.

Visiting Tourist Landmarks in Virtual Reality Systems by Real-Walking

2010 ◽  
pp. 180-193 ◽  
Author(s):  
F. Steinicke ◽  
G. Bruder ◽  
J. Jerald ◽  
H. Frenz
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
User Interfaces ◽  
Large Scale ◽  
Three Dimensional ◽  
Interaction Space ◽  
Immersive Virtual Environments ◽  
Redirected Walking ◽  
Virtual City

In recent years virtual environments (VEs) have become more and more popular and widespread due to the requirements of numerous application areas in particular in the 3D city visualization domain. Virtual reality (VR) systems, which make use of tracking technologies and stereoscopic projections of three-dimensional synthetic worlds, support better exploration of complex datasets. However, due to the limited interaction space usually provided by the range of the tracking sensors, users can explore only a portion of the virtual environment (VE). Redirected walking allows users to walk through large-scale immersive virtual environments (IVEs) such as virtual city models, while physically remaining in a reasonably small workspace by intentionally injecting scene motion into the IVE. With redirected walking users are guided on physical paths that may differ from the paths they perceive in the virtual world. The authors have conducted experiments in order to quantify how much humans can unknowingly be redirected. In this chapter they present the results of this study and the implications for virtual locomotion user interfaces that allow users to view arbitrary real world locations, before the users actually travel there in a natural environment.

scholarly journals Elucidating Factors that Can Facilitate Veridical Spatial Perception in Immersive Virtual Environments

2008 ◽  
Vol 17 (2) ◽  
pp. 176-198 ◽  
Author(s):  
Victoria Interrante ◽  
Brian Ries ◽  
Jason Lindquist ◽  
Michael Kaeding ◽  
Lee Anderson
Keyword(s):  
Virtual Environments ◽  
Virtual Environment ◽  
Spatial Perception ◽  
The Real ◽  
Immersive Virtual Environments ◽  
Real Environment ◽  
Environment Model ◽  
Computer Mediated ◽  
Alternative Hypotheses ◽  
Special Case

Ensuring veridical spatial perception in immersive virtual environments (IVEs) is an important yet elusive goal. In this paper, we present the results of two experiments that seek further insight into this problem. In the first of these experiments, initially reported in Interrante, Ries, Lindquist, and Anderson (2007), we seek to disambiguate two alternative hypotheses that could explain our recent finding (Interrante, Anderson, and Ries, 2006a) that participants appear not to significantly underestimate egocentric distances in HMD-based IVEs, relative to in the real world, in the special case that they unambiguously know, through first-hand observation, that the presented virtual environment is a high-fidelity 3D model of their concurrently occupied real environment. Specifically, we seek to determine whether people are able to make similarly veridical judgments of egocentric distances in these matched real and virtual environments because (1) they are able to use metric information gleaned from their exposure to the real environment to calibrate their judgments of sizes and distances in the matched virtual environment, or because (2) their prior exposure to the real environment enabled them to achieve a heightened sense of presence in the matched virtual environment, which leads them to act on the visual stimulus provided through the HMD as if they were interpreting it as a computer-mediated view of an actual real environment, rather than just as a computer-generated picture, with all of the uncertainties that that would imply. In our second experiment, we seek to investigate the extent to which augmenting a virtual environment model with faithfully-modeled replicas of familiar objects might enhance people's ability to make accurate judgments of egocentric distances in that environment.

Me and My VE, Part 5: Applications in Human Factors Research and Practice

2018 ◽  
Vol 62 (1) ◽  
pp. 2051-2055
Author(s):  
Randall Spain ◽  
Benjamin Goldberg ◽  
Jeffrey Hansberger ◽  
Tami Griffith ◽  
Jeremy Flynn ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Human Factors ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Human Performance ◽  
Mixed Reality ◽  
Research Training ◽  
Research And Practice ◽  
Set Up ◽  
Human Factors Research

Recent advances in technology have made virtual environments, virtual reality, augmented reality, and simulations more affordable and accessible to researchers, companies, and the general public, which has led to many novel use cases and applications. A key objective of human factors research and practice is determining how these technology-rich applications can be designed and applied to improve human performance across a variety of contexts. This session will demonstrate some of the distinct and diverse uses of virtual environments and mixed reality environments in an alternative format. The session will begin with each demonstrator providing a brief overview of their virtual environment (VE) and a description of how it has been used to address a particular problem or research need. Following the description portion of the session, each VE will be set-up at a demonstration station in the room, and session attendees will be encouraged to directly interact with the virtual environment and ask demonstrators questions about their research and inquire about the effectiveness of using VE for research, training, and evaluation purposes. The overall objective of this alternative session is to increase the awareness of how human factors professionals use VE technologies and increase the awareness of the capabilities and limitations of VE in supporting the work of HF professionals.

scholarly journals VIRTUAL REALITY SIMULATION AS THERAPY FOR POSTTRAUMATIC STRESS DISORDER (PTSD)

2019 ◽  
Vol 01 (01) ◽  
pp. 24-34 ◽  
Author(s):  
Smys S ◽  
Jennifer S. Raj ◽  
Krishna raj N.
Keyword(s):  
Posttraumatic Stress Disorder ◽  
Sexual Abuse ◽  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Stress Disorder ◽  
Raspberry Pi ◽  
Virtual Reality Simulation ◽  
Motion Platform ◽  
Person Experience

Virtual reality (VR) technology has the potential to make a person experience anything, anytime, anywhere. It has the ability to influence the human brain that it assumes to be present somewhere that it is really not. In this paper, we exploit this application of the VR technology to simulate virtual environments that can help with PTSD therapy for people affected by trauma due to accident, war, sexual abuse and so on. Several sensors are used to gather the user movements on a motion platform and replicate it in the virtual environment with the help of a Raspberry Pi board and Unreal Developer’s kit. It has flexible interfaces that the clinician can modify the virtual environment according to the requirement for the patient.

scholarly journals Virtual Reality and Assistive Technologies: A Survey

2018 ◽  
Vol 18 (2) ◽  
pp. 30-57
Author(s):  
Shamima Yasmin
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Assistive Technologies ◽  
Sensory Substitution ◽  
Body Movements ◽  
Rehabilitation Therapy ◽  
Extensive Survey ◽  
Different Types ◽  
Mental Exercise

This paper conducts an extensive survey on existing Virtual Reality (VR)-based rehabilitation approaches in the context of different types of impairments: mobility, cognitive, and visual. Some VR-based assistive technologies involve repetitions of body movements, some require persistent mental exercise, while some work as sensory substitution systems. A multi-modal VR-based environment can incorporate a number of senses, (i.e., visual, auditory, or haptic) into the system and can be an immense source of motivation and engagement in comparison with traditional rehabilitation therapy. This survey categorizes virtual environments on the basis of different available modalities. Each category is again subcategorized by the types of impairments while introducing available devices and interfaces. Before concluding the survey, the paper also briefly focuses on some issues with existing VR-based approaches that need to be optimized to exploit the utmost benefit of virtual environment-based rehabilitation systems .

A Kinematic Evaluation of Linear and Parabolic Pointing in Virtual Reality

2021 ◽  
Vol 65 (1) ◽  
pp. 86-90
Author(s):  
John Sermarini ◽  
Joseph T. Kider ◽  
Joseph J. LaViola ◽  
Daniel S. McConnell
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Movement Time ◽  
Interaction Style ◽  
Task Constraint ◽  
Immersive Virtual Environments ◽  
Pointing Task ◽  
Pointing Movements ◽  
Movement Distance ◽  
Kinematic Evaluation

We present the results of a study investigating the influence of task and effector constraints on the kinematics of pointing movements performed in immersive virtual environments. We compared the effect of target width, as a task constraint, to the effect of movement distance, as an effector constraint, in terms of overall effect on movement time in a pointing task. We also compared a linear ray-cast pointing technique to a parabolic pointing technique to understand how interaction style may be understood in the context of task and effector constraints. The effect of target width as an information constraint on pointing performance was amplified in VR. Pointing technique acted as an effector constraint, with linear ray-cast pointing resulting in faster performance than parabolic pointers.

scholarly journals Cartographic Scale in Immersive Virtual Environments

2020 ◽  
Author(s):  
Florian Hruby ◽  
Irma Castellanos ◽  
Rainer Ressl
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Short Review ◽  
Temporal Scale ◽  
Level Of Detail ◽  
Immersive Virtual Reality ◽  
Conceptual Integration ◽  
Immersive Virtual Environments ◽  
High Level ◽  
Immersive Visualization

Abstract Scale has been a defining criterion of mapmaking for centuries. However, this criterion is fundamentally questioned by highly immersive virtual reality (VR) systems able to represent geographic environments at a high level of detail and, thus, providing the user with a feeling of being present in VR space. In this paper, we will use the concept of scale as a vehicle for discussing some of the main differences between immersive VR and non-immersive geovisualization products. Based on a short review of diverging meanings of scale we will propose possible approaches to the issue of both spatial and temporal scale in immersive VR. Our considerations shall encourage a more detailed treatment of the specific characteristics of immersive geovisualization to facilitate deeper conceptual integration of immersive and non-immersive visualization in the realm of cartography.

scholarly journals Using 3D Worlds in Prison: Driving, Learning and Escape

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Helen Sara Farley
Keyword(s):  
Virtual Reality ◽  
General Population ◽  
Virtual Environments ◽  
Geographical Location ◽  
Paper Briefly ◽  
Immersive Virtual Environments ◽  
Prison Setting ◽  
Processing Power ◽  
Prison Environment ◽  
The One

Affordable hardware and increased processing power have resulted in a surge in the number and adoption of virtual reality applications and immersive virtual environments. These applications are able to immerse the user in an environment other than that of their immediate geographical location. The one population that is unable to move even within their own geographical location are prisoners. Prisoners are secluded away from the general population, unable to travel, attend education beyond the prison walls or interact with a wide variety of people. At least to a certain extent, these constraints are able to be overcome with the use of virtual reality and immersive virtual environments.This paper briefly examines the constraints experienced by prisoners and the technical limitations of the prison environment. It explores the very few cases where these technologies are already used within the prison setting. A number of potential uses for virtual reality within prisons are proposed, including the justification for these approaches and a description of how these technologies are being used outside of the prison setting.

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