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检索条件"主题词=Human-centered computing-Visualization-Visualization design and evaluation methods"

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A Nugget-Based Concept for Creating Augmented Reality 20

A Nugget-Based Concept for Creating Augmented Reality

引用

20th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Rau, Linda Horst, Robin Liu, Yu Doerner, Ralf RheinMain Univ Appl Sci Wiesbaden Germany

ISBN: (纸本)9781665412988

Creating Augmented Reality (AR) applications can be challenging, especially for persons with little or no technical background. This work introduces a concept for pattern-based AR applications that we call AR nuggets. One AR nugget reflects a single pattern from an application domain and includes placeholder objects and default parameters. Authors of AR applications can start with an AR nugget as an executable stand-alone application and customize it. This aims to support and facilitate the authoring process. Additionally, this paper identifies suitable application patterns that serve as a basis for AR nuggets. We implement and adapt AR nuggets to an exemplary use case in the medical domain. In an expert user study, we show that AR nuggets add a statistically significant value to an educational course and can support continuing education in the medical domain.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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A Neurophysiological Approach for Measuring Presence in Immersive Virtual Environments 19

A Neurophysiological Approach for Measuring Presence in Imme...

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19th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Dey, Arindam Phoon, Jane Saha, Shuvodeep Dobbins, Chelsea Billinghurst, Mark Univ Queensland Brisbane Qld Australia CSIO Chandigarh India Univ South Australia Adelaide SA Australia

ISBN: (纸本)9781728185088

Presence, the feeling of being there, is an important factor that affects the overall experience of Virtual Reality (VR). Higher presence commonly provides a better experience in VR than lower presence. However, presence is commonly measured subjectively through post-experience questionnaires, which can suffer from participant biases, dishonest answers, and fatigue. It can also be difficult for subjects to accurately remember their feelings of presence after they have left the VR experience. In this paper, we measured the effects of different levels of presence (high and low) in VR using physiological and neurological signals. The experiment involved 24 participants in a between-subjects design. Results indicated a significant effect of presence on both physiological and neurological signals. We noticed that higher presence results in higher heart rate, less visual stress, higher theta and beta activities in the frontal region, and higher alpha activities in the parietal region. These findings and insights could lead to an alternative objective measure of presence.

关键词： human-centered computing-human computer interaction (HCI)-Empirical studies in HCI human-centered computing-visualization-visualization design and evaluation methods

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Topological Analysis of Magnetic Reconnection in Kinetic Plasma Simulations

Topological Analysis of Magnetic Reconnection in Kinetic Pla...

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IEEE visualization Conference (VIS)

作者： Banesh, Divya Lo, Li-Ta Kilian, Patrick Guo, Fan Hamann, Bernd Univ Calif Davis Davis CA 95616 USA Los Alamos Natl Lab Los Alamos NM 87545 USA

ISBN: (纸本)9781728180144

Magnetic reconnection is a ubiquitous plasma process in which oppositely directed magnetic field lines break and rejoin, resulting in a change of the magnetic field topology. Reconnection generates magnetic islands: regions enclosed by magnetic field lines and separated by reconnection points. Proper identification of these features is important to understand particle acceleration and overall behavior of plasma. We present a contour-tree based visualization for robust and objective identification of islands and reconnection points in two-dimensional (2D) magnetic reconnection simulations. The application of this visualization to a simple simulation has revealed a physical phenomenon previously not reported, resulting in a more comprehensive understanding of magnetic reconnection.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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visualization for Spectators in Cybersecurity Competitions

Visualization for Spectators in Cybersecurity Competitions

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17th IEEE Symposium on visualization for Cyber Security (VizSec)

作者： Peng, Chao Schwartz, David Johnson, Daryl Stackpole, Bill Weeden, Chad Marcovecchio, Jacob Richards, Drake Fogle, Chris Brown, Christopher Walrond, Victoria Rochester Inst Technol Sch Interact Games & Media Rochester NY 14623 USA Rochester Inst Technol Dept Comp Secur Rochester NY 14623 USA Rochester Inst Technol Esports & CyberSecur Range Rochester NY 14623 USA

ISBN: (纸本)9781728182629

The goal is to raise awareness and encourage learning cybersecurity principles by making competitions appealing to a wider audience. In an effort to make events compelling, attractive, and watchable, the researchers will develop systems to support visualizations and make the transactions between teams in different cybersecurity competitions easy to comprehend. In informing and educating the audience on the intricacies of the competition through engaging visualizations, cybersecurity competitions will be opened up to a world beyond just participants. In doing so, we can potentially attract new talent into the field. Our team seeks to make prototype visualizations for key actions in various student cybersecurity competitions and assess spectator understanding of key principles of the competition.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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Visual-Auditory Redirection: Multimodal Integration of Incongruent Visual and Auditory Cues for Redirected Walking 19

Visual-Auditory Redirection: Multimodal Integration of Incon...

引用

19th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Gao, Peizhong Matsumoto, Keigo Narumi, Takuji Hirose, Michitaka Univ Tokyo Tokyo Japan JSPS Tokyo Japan JST PRESTO Kawaguchi Saitama Japan

ISBN: (纸本)9781728185088

In this paper, we present a study of redirected walking (RDW) that shifts the positional relationship between visual and auditory cues during curvature manipulation. It has been shown that, when presented with incongruent visual and auditory spatial cues during a localization task, human observers integrate that information based on each cue's relative reliability, which determines their final perception of the target object's location. This multimodal integration model is known as maximum likelihood estimation (MLE). By altering the visual location of objects that users perceive in virtual reality (VR) through auditory cues during redirection manipulation, we expect fewer users to notice the manipulation, which helps increase the usable curvature gain. Most existing studies on MLE in multimodal integration have used random-dot stereograms as visual cues under stable motion states. In the present study, we first investigated whether this model holds while walking in VR environment. Our results indicate that in a walking state, users' perceptions of the target object's location shift toward auditory cue as the reliability of vision decreases, in keeping with the trend shown in previous studies on MLE. Based on this result, we then investigated the detection threshold of curvature gains during redirection manipulation under a condition with congruent visual-auditory cues as well as a condition in which users' location perceptions of the target object are considered to be affected by the incongruent auditory cue. We found that the detection threshold of curvature gains was higher with incongruent visual-auditory cues than with congruent cues. These results show that incongruent multimodal cues in VR may have a promising application in the area of redirected walking

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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Explainable visualization of Collaborative Vandal Behaviors in Wikipedia

Explainable Visualization of Collaborative Vandal Behaviors ...

引用

IEEE Symposium on visualization for Cyber Security (VizSec)

作者： Subramanian, Siva Sandeep Pushparaj, Parab Liu, Zerong Lu, Aidong Univ N Carolina Dept Comp Sci Charlotte NC 28223 USA

ISBN: (纸本)9781728138763

Online social networks are prone to be targeted by various frauds and attacks, which are difficult to detect due to their complexity and variations. The challenge is to make sense of all information with suitable exploration tools for different groups of users. This project focuses on an explainable visualization approach to study collaborative behaviors of vandal users on Wikipedia. Our approach creates visualization with commonly used techniques from cartography and statistical graphics that are familiar to the general public for effectiveness and explainability. We have built a large-scale visualization system which supports an illustrative interface with multiple data query, filtering, analysis, and interactive exploration functions. Examples and case studies are provided to demonstrate that our approach can be used effectively for a set of Wikipedia behavior analysis tasks.

关键词： human-centered computing-visualization-visualization techniques human-centered computing-visualization-visualization design and evaluation methods

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HapticSphere: Physical Support To Enable Precision Touch Interaction in Mobile Mixed-Reality 26

HapticSphere: Physical Support To Enable Precision Touch Int...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Wang, Chiu-Hsuan Hsieh, Chen-Yuan Yu, Neng-Hao Bianchi, Andrea Chan, Liwei NTUST Dept Ind Design Taipei Taiwan Korea Adv Inst Sci & Technol Dept Ind Design Seoul South Korea Natl Chiao Tung Univ Dept Comp Sci Taipei Taiwan

ISBN: (纸本)9781728113777

This work presents I lapticSphere, a wearable spherical surface enabled by bridging a finger and the head-mounted display (HMD) with a passive string. Users perceive a physical support on a finger attached to a string, when extending their arm and reaching out to the string's maximum extension. This physical support assists users in precise touch interaction in the context of stationary and walking virtual or mixed-reality experiences. We propose three methods of attachment of the haptic string (directly on the head or on the body), and illustrate a novel single-step calibration algorithm that supports these configurations by estimating a grand haptic sphere, once a head-coordinated touch interaction is established. Two user studies were conducted to validate our approach and to compare the touch performance with physical support in sitting and walking conditions in the context of mobile mixed-reality scenarios. The results show that, in the walking condition, touch interaction with physical support significantly outperformed the visual-only condition.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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VR as a Content Creation Tool for Movie Previsualisation 26

VR as a Content Creation Tool for Movie Previsualisation

引用

26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Galvane, Quentin Lin, I-Sheng Argelaguet, Fernando Li, Tsai-Yen Christie, Marc INRIA Rennes Rennes France Natl ChengChi Univ Taipei Taiwan INRIA Rennes IRISA Rennes France

ISBN: (纸本)9781728113777

Creatives in animation and film productions have forever been exploring the use of new means to prototype their visual sequences before realizing them, by relying on hand-drawn storyboards, physical mockups or more recently 3D modelling and animation tools. However these 3D tools are designed in mind for dedicated animators rather than creatives such as film directors or directors of photography and remain complex to control and master. In this paper we propose a VR authoring system which provides intuitive ways of crafting visual sequences, both for expert animators and expert creatives in the animation and film industry. The proposed system is designed to reflect the traditional process through (i) a storyboarding mode that enables rapid creation of annotated still images, (ii) a previsualisation mode that enables the animation of the characters, objects and cameras, and (iii) a technical mode that enables the placement and animation of complex camera rigs ( such as cameras cranes) and light rigs. Our methodology strongly relies on the benefits of VR manipulations to re-think how content creation can be performed in this specific context, typically how to animate contents in space and time. As a result, the proposed system is complimentary to existing tools, and provides a seamless back-and -forth process between all stages of previsualisation. We evaluated the tool with professional users to gather experts' perspectives on the specific benefits of VR in 3D content creation.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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CubeVR: Digital Affordances for Architecture Undergraduate Education using Virtual Reality 26

CubeVR: Digital Affordances for Architecture Undergraduate E...

引用

26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Raikwar, Aditya D'Souza, Newton Rogers, Ciana Kress, Mathew Williams, Adam Rishe, Naphtali D. Ortega, Francisco R. Colorado State Univ Ft Collins CO 80523 USA Florida Int Univ Miami FL 33199 USA

ISBN: (纸本)9781728113777

CubeVR incorporates the traditional studio-based learning in architecture with virtual reality (VR) and in doing so it enables features that are not available or difficult to achieve in the real-world. CubeVR allows students and instructors to move from the existing studio to a virtual environment, allowing for a more impactful learning experience. This paper presents our current state of the CubeVR prototype, informal impressions of users, and the use of different affordances in the virtual world.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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Immersive EEG: Evaluating Electroencephalography in Virtual Reality 26

Immersive EEG: Evaluating Electroencephalography in Virtual ...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Tauscher, Jan-Philipp Schottky, Fabian Wolf Grogorick, Steve Bittner, Paul Maximilian Mustafa, Maryam Magnor, Marcus TU Braunschweig Braunschweig Germany ITU Lahore Lahore Pakistan

ISBN: (纸本)9781728113777

We investigate the feasibility of combining off-the-shelf virtual reality headsets and electroencephalography. EEG is a highly sensitive tool and subject to strong distortions when exerting physical force like mounting a VR headset on top of it that twists sensors and cables. Our study compares the signal quality of EEG in VR against immersive dome environments and traditional displays using an oddball paradigm experimental design. Furthermore, we compare the signal quality of EEG when combined with a commodity VR headset without modification against a modified version that reduces physical strain on the EEG headset. Our results indicate, that it is possible to combine EEG and VR even without modification under certain conditions. VR headset customisation improves signal quality results. Additionally, display latency of the different modalities is visible on a neurological level.

关键词： human-centered computing-visualization-visualization techniques-Treemaps human-centered computing-visualization-visualization design and evaluation methods

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