Modular virtual reality to enable efficient user studies for autonomous driving

2020 ◽  
Author(s):  
Kathrin Konkol ◽  
Elisabeth Brandenburg ◽  
Rainer Stark
Keyword(s):  
Virtual Reality ◽  
Autonomous Driving ◽  
User Studies

A Re-examination of Dichoptic Tone Mapping

2021 ◽  
Vol 40 (2) ◽  
pp. 1-15
Author(s):  
Minqi Wang ◽  
Emily A. Cooper
Keyword(s):  
Virtual Reality ◽  
Visual System ◽  
Contrast Enhancement ◽  
User Studies ◽  
Objective Measures ◽  
Tone Mapping ◽  
Photographic Technique ◽  
Stereoscopic Displays ◽  
Visual Detail

Dichoptic tone mapping methods aim to leverage stereoscopic displays to increase visual detail and contrast in images and videos. These methods, which have been called both binocular tone mapping and dichoptic contrast enhancement , selectively emphasize contrast differently in the two eyes’ views. The visual system integrates these contrast differences into a unified percept, which is theorized to contain more contrast overall than each eye’s view on its own. As stereoscopic displays become increasingly common for augmented and virtual reality (AR/VR), dichoptic tone mapping is an appealing technique for imaging pipelines. We sought to examine whether a standard photographic technique, exposure bracketing, could be modified to enhance contrast similarly to dichoptic tone mapping. While assessing the efficacy of this technique with user studies, we also re-evaluated existing dichoptic tone mapping methods. Across several user studies; however, we did not find evidence that either dichoptic tone mapping or dichoptic exposures consistently increased subjective image preferences. We also did not observe improvements in subjective or objective measures of detail visibility. We did find evidence that dichoptic methods enhanced subjective 3D impressions. Here, we present these results and evaluate the potential contributions and current limitations of dichoptic methods for applications in stereoscopic displays.

scholarly journals Comparing VR- and AR-Based Try-On Systems Using Personalized Avatars

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1814
Author(s):  
Yuzhao Liu ◽  
Yuhan Liu ◽  
Shihui Xu ◽  
Kelvin Cheng ◽  
Soh Masuko ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Mobile Application ◽  
User Study ◽  
User Studies ◽  
Apparel Shopping ◽  
Shopping Experience ◽  
Online Experience ◽  
The Impact ◽  
Virtual Body

Despite the convenience offered by e-commerce, online apparel shopping presents various product-related risks, as consumers can neither physically see nor try products on themselves. Augmented reality (AR) and virtual reality (VR) technologies have been used to improve the shopping online experience. Therefore, we propose an AR- and VR-based try-on system that provides users a novel shopping experience where they can view garments fitted onto their personalized virtual body. Recorded personalized motions are used to allow users to dynamically interact with their dressed virtual body in AR. We conducted two user studies to compare the different roles of VR- and AR-based try-ons and validate the impact of personalized motions on the virtual try-on experience. In the first user study, the mobile application with the AR- and VR-based try-on is compared to a traditional e-commerce interface. In the second user study, personalized avatars with pre-defined motion and personalized motion is compared to a personalized no-motion avatar with AR-based try-on. The result shows that AR- and VR-based try-ons can positively influence the shopping experience, compared with the traditional e-commerce interface. Overall, AR-based try-on provides a better and more realistic garment visualization than VR-based try-on. In addition, we found that personalized motions do not directly affect the user’s shopping experience.

scholarly journals Teleportation in Virtual Reality; A Mini-Review

2021 ◽  
Vol 2 ◽  
Author(s):  
Aniruddha Prithul ◽  
Isayas Berhe Adhanom ◽  
Eelke Folmer
Keyword(s):  
Virtual Reality ◽  
User Studies ◽  
Future Research ◽  
Comprehensive Overview

Teleportation is a widely implemented virtual locomotion technique that allows users to navigate beyond the confines of available tracking space with a low possibility of inducing virtual reality (VR) sickness. This paper provides a comprehensive overview of prior research on teleportation. We report results from user studies that have evaluated teleportation in comparison to other locomotion methods and survey improved versions of teleportation. We identify a number of areas for future research.

scholarly journals KinFit: A Factual Aerobic Sport Game with Stimulation Support

2018 ◽  
Vol 13 (12) ◽  
pp. 50 ◽  
Author(s):  
AbdelGhani Karkar ◽  
Somaya AlMaadeed ◽  
Rehab Salem ◽  
Mariam AbdelHady ◽  
Sara Abou-Aggour ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Video Games ◽  
Video Game ◽  
Serious Games ◽  
Overweight And Obesity ◽  
User Studies ◽  
Immersive Virtual Reality ◽  
Health Awareness ◽  
Realistic Scenes

Overweight and obesity is a situation where a person has stacked too much fat that might affect negatively his/her health. Many people skip doing exercises due to several facts related to the encouragement, health-awareness, and time ar-rangement. Diverse aerobic video games have been proposed to help users in do-ing exercises. However, we observe some limitations in existing games. For in-stance, they don’t give correct scores while wearing Arabic traditional suits, they don’t consider showing immersive realistic scenes, and they don’t stimulate users to do exercises and keeping them encouraged to play more. We propose in this paper an aerobic video game that displays real scenes of aerobic coaches and keeps the user notified about doing exercises. It is a kind of serious games that allows users to learn aerobic movements and practice with aerobic coaches. It contains several exercises in which each can be played on normal screen or in fully immersive virtual reality (VR). While the user is playing, he/she can see the playing score with the estimated amount of burned calories. It stores the time when the user plays to remind him/her about doing exercises again. The profound user studies demonstrated the usability and effectiveness of the proposed game.

scholarly journals Social viewing in cinematic virtual reality: a design space for social movie applications

2020 ◽  
Author(s):  
Sylvia Rothe ◽  
Alexander Schmidt ◽  
Mario Montagud ◽  
Daniel Buschek ◽  
Heinrich Hußmann
Keyword(s):  
Virtual Reality ◽  
Design Space ◽  
User Studies ◽  
Field Of View ◽  
Interaction Techniques ◽  
Know How ◽  
Head Mounted Displays ◽  
Voice Chat ◽  
Future Work ◽  
Multiuser Environments

AbstractSince watching movies is a social experience for most people, it is important to know how an application should be designed for enabling shared cinematic virtual reality (CVR) experiences via head-mounted displays (HMDs). Viewers can feel isolated when watching omnidirectional movies with HMDs. Even if they are watching the movie simultaneously, they do not automatically see the same field of view, since they can freely choose their viewing direction. Our goal is to explore interaction techniques to efficiently support social viewing and to improve social movie experiences in CVR. Based on the literature review and insights from earlier work, we identify seven challenges that need to be addressed: communication, field-of-view (FoV) awareness, togetherness, accessibility, interaction techniques, synchronization, and multiuser environments. We investigate four aspects (voice chat, sending emotion states, FoV indication, and video chat) to address some of the challenges and report the results of four user studies. Finally, we present and discuss a design space for CVR social movie applications and highlight directions for future work.

Using Virtual Reality to Validate Autonomous Driving Functions

2020 ◽  
Vol 15 (1-2) ◽  
pp. 42-45
Author(s):  
Jan Hamann ◽  
Timo Nels
Keyword(s):  
Virtual Reality ◽  
Autonomous Driving

scholarly journals Tangible VR Book: Exploring the Design Space of Marker-Based Tangible Interfaces for Virtual Reality

2021 ◽  
Vol 11 (4) ◽  
pp. 1367
Author(s):  
Jorge C. S. Cardoso ◽  
Jorge M. Ribeiro
Keyword(s):  
Virtual Reality ◽  
User Interface ◽  
Design Space ◽  
User Studies ◽  
Tangible Interaction ◽  
Tangible User Interface ◽  
Tangible Interfaces ◽  
Visual Markers ◽  
Haptic Cues ◽  
Remote User

Tangible User Interface (TUI) represents a huge potential for Virtual Reality (VR) because tangibles can naturally provide rich haptic cues which are often missing in VR experiences that make use of standard controllers. We are particularly interested in implementing TUIs for smartphone-based VR, given the lower usage barrier and easy deployment. In order to keep the overall system simple and accessible, we have explored object detection through visual markers, using the smartphone’s camera. In order to help VR experience designers, in this work we present a design space for marker-based TUI for VR. We have mapped this design space by developing several marker-based tangible interaction prototypes and through a formative study with professionals with different backgrounds. We then instantiated the design space in a Tangible VR Book which we evaluate with remote user studies inspired by the vignette methodology.

scholarly journals Authenticity, Interactivity, and Collaboration in Virtual Reality Games: Best Practices and Lessons Learned

2021 ◽  
Vol 2 ◽  
Author(s):  
Annie Wang ◽  
Meredith Thompson ◽  
Cigdem Uz-Bilgin ◽  
Eric Klopfer
Keyword(s):  
Virtual Reality ◽  
Best Practices ◽  
Virtual Environments ◽  
Learning Environments ◽  
Lessons Learned ◽  
User Studies ◽  
Collaborative Problem Solving ◽  
Two Dimensional ◽  
Collaborative Problem ◽  
Motivate Learning

Virtual reality has become an increasingly important topic in the field of education research, going from a tool of interest to a tool of practice. In this paper, we document and summarize the studies associated with our 4-year design project, Collaborative Learning Environments in Virtual Reality (CLEVR). Our goal is to share the lessons we gleaned from the design and development of the game so that others may learn from our experiences as they are designing, developing, and testing VR for learning. We translate “lessons learned” from our user studies into “best practices” when developing authentic, interactive, and collaborative experiences in VR. We learned that authentic representations can enhance learning in virtual environments but come at a cost of increased time and resources in development. Interactive experiences can motivate learning and enable users to understand spatial relationships in ways that two dimensional representations cannot. Collaboration in VR can be used to alleviate some of the cognitive load inherent in VR environments, and VR can serve as a context for collaborative problem solving with the appropriate distribution of roles and resources. The paper concludes with a summation of best practices intended to inform future VR designers and researchers.

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