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

作者： Hirsch, Linda Haller, Anna Butz, Andreas George, Ceenu Ludwig Maximilians Univ Munchen Munich Germany Augsburg Univ Augsburg Germany

ISBN: (纸本)9781665484022

Shared virtual environments (VEs) are challenged conveying and triggering users' feelings of social presence. Traces of use are implicit evidence of prior interactions that support social awareness in the real environment (RE). However, they have not been explored in VEs so far. We investigate the traces' effect on users' perception of asynchronous social presences in a within-subject study (N=26) by comparing the users' experience with and without traces. The traces significantly increased the feeling of social presence. We contribute an initial exploration of the traces of use concept in VE to design shared social spaces for long-term use.

关键词： human-centered computing Collaborative and social computing design and evaluation methods Design and evaluation methods

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News Kaleidoscope: Visual Investigation of Coverage Diversity in News Event Reporting 15

News Kaleidoscope: Visual Investigation of Coverage Diversit...

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IEEE 15th Pacific Visualization Symposium (PacificVis)

作者： Mishra, Aditi Ginjpalli, Shashank Bryan, Chris Arizona State Univ Tempe AZ 85287 USA

ISBN: (纸本)9781665423359

When a newsworthy event occurs, media articles that report on the event can vary widely-a concept known as coverage diversity. To help investigate coverage diversity in event reporting, we develop a visual analytics system called News Kaleidoscope. News Kaleidoscope combines several backend language processing techniques with a coordinated visualization interface. Notably, News Kaleidoscope is tailored for visualization non-experts, and adopts an analytic workflow based around subselection analysis, whereby second-level features of articles are extracted to provide a more detailed and nuanced analysis of coverage diversity. To robustly evaluate News Kaleidoscope, we conduct a trio of user studies. (1) A study with news experts assesses the insights promoted for our targeted journalism-savvy users. (2) A follow-up study with news novices assesses the overall system and the specific insights promoted for journalism-agnostic users. (3) Based on identified system limitations in these two studies, we refine News Kaleidoscope's design and conduct a third study to validate these improvements. Results indicate that, for both news novice and experts, News Kaleidoscope supports an effective, task-driven workflow for analyzing the diversity of news coverage about events, though journalism expertise has a significant influence on the user's insights and takeaways. Our insights developing and evaluating News Kaleidoscope can aid future tools that combine visualization with natural language processing to analyze coverage diversity in news event reporting.

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

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Capacitive Sensing for Improving Contact Rendering With Tangible Objects in VR

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IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 2021年第4期27卷 2481-2487页

作者： de Tinguy, Xavier Pacchierotti, Claudio Lecuyer, Anatole Marchal, Maud Univ Rennes INSA IRISA InriaCNRS 35042 F-35042 Rennes France Univ Rennes CNRS INRIA IRISA 35042 F-35042 Rennes France Inst Univ France IUF F-75005 Paris France

We combine tracking information from a tangible object instrumented with capacitive sensors and an optical tracking system, to improve contact rendering when interacting with tangibles in VR. A human-subject study shows that combining capacitive sensing with optical tracking significantly improves the visuohaptic synchronization and immersion of the VR experience.

关键词： Optical sensors Tracking Synchronization Capacitive sensors Haptic interfaces Electrodes Rendering (computer graphics) Haptic rendering human computer interaction sensors human-centered computing

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Evaluating Visual Cues for Future Airborne Surveillance Using Simulated Augmented Reality Displays 29

Evaluating Visual Cues for Future Airborne Surveillance Usin...

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

作者： Barbotin, Nicolas Baumeister, James Cunningham, Andrew Duval, Thierry Grisvard, Olivier Thomas, Bruce H. Univ South Australia Adelaide SA Australia IMT Atlantique Nantes France Thales DMS Paris France

ISBN: (纸本)9781665496179

This work explores the interaction between Augmented Reality (AR) and eye accommodation for airborne surveillance by simulating AR environments in Virtual Reality (VR). We simulate the AR display as displays with the capabilities needed for airborne surveillance are limited and because it would be hazardous to experiment directly on surveillance aircraft. While there is precedent for simulating AR in a VR environment, our study account for two of the physical and physiological aspects of AR: we factor in the focal plane of the AR technology and simulate the eye accommodation reflex of the user to provide focus. We ran a study with 24 participants examining AR cues to support visual search. We also compare the effects of having secondary tasks (that surveillance operators are normally responsible for) directly on the observation window using AR. Our results show that the effectiveness of the AR cues is dependent on the modality of the secondary task. We also found that, under certain situations, operators' performances for the search task are improved if the focal plane of the AR display is at the same distance as subsequent search targets.

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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Designing Extended Reality Guidance for Physical Caregiving Tasks

Designing Extended Reality Guidance for Physical Caregiving ...

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

作者： Dell, Nicola Estrin, Deborah Haraldsson, Harald Ju, Wendy Cornell Tech New York NY 10044 USA

In this short paper we explore the opportunities and challenges of designing XR technologies to support the collaborative work between family caregivers and clinicians as they attend to the physical care needs of pati... 详细信息

ISBN: (纸本)9781665484022

关键词： human-centered computing human computer interaction (HCI) Interaction techniques

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The Immediate and Retained Effects of One-time Virtual Reality Exposure on Intercultural Sensitivity

The Immediate and Retained Effects of One-time Virtual Reali...

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

作者： Li, Richard Chen Kon, Angel Lo Lo So, Justin Juk Man Ip, Horace Ho Shing Hong Kong Polytech Univ Hong Kong Peoples R China City Univ Hong Kong Hong Kong Peoples R China UCL London England

ISBN: (纸本)9781665484022

This study aims to investigate the immediate and retained effects of one-time virtual reality (VR) exposure on intercultural sensitivity (IS) and identify the contributing factors. Three virtual scenarios about the ethnic minorities in Hong Kong were created for the empirical study. The longitudinal results involving 30 participants (15M 15F) showed that both the immediate and retained effects of the one-time VR exposure on IS were significant. Moreover, linear growth curve models suggested that among the female participants, presence and emotional empathy were closely associated with the change of IS over time, but this relation was not significant among the males.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Virtual reality human-centered computing human computer interaction (HCI) Empirical studies in HCI

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Intentable: A Mixed-Initiative System for Intent-Based Chart Captioning

Intentable: A Mixed-Initiative System for Intent-Based Chart...

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IEEE Visualization Conference (VIS)

作者： Choi, Jiwon Jo, Jaemin Sungkyunkwan Univ Seoul South Korea

ISBN: (数字)9781665488129

ISBN: (纸本)9781665488129

We present Intentable, a mixed-initiative caption authoring system that allows the author to steer an automatic caption generation process to reflect their intent, e.g., the finding that the author gained from visualization and thus wants to write a caption for. We first derive a grammar for specifying the intent, i.e., a caption recipe, and build a neural network that generates caption sentences given a recipe. Our quantitative evaluation revealed that our intent-based generation system not only allows the author to engage in the generation process but also produces more fluent captions than the previous end-to-end approaches without user intervention. Finally, we demonstrate the versatility of our system, such as context adaptation, unit conversion, and sentence reordering.

关键词： human-centered computing Visualization Visualization systems and tools human-centered computing humancomputer interaction (HCI) Interactive systems and tools

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Moving Soon? Rearranging Furniture using Mixed Reality

Moving Soon? Rearranging Furniture using Mixed Reality

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

作者： Song, Shihao Wang, Yujia Liang, Wei Li, Xiangyuan Beijing Inst Technol Beijing Peoples R China Beijing Inst Technol Yangtze Delta Reg Acad Jiaxing Peoples R China Beijing Forestry Univ Beijing Peoples R China

ISBN: (纸本)9781665484022

We present a mixed reality (MR) system to help users with a houseful of furniture moving from an existing home into a new space, inheriting the preferences of furniture layout from the previous scene. With the RGB-D cameras mounted on a mixed reality device, Microsoft HoloLens 2, our system first reconstructs the 3D model of the existing scene and leverages a deep learning-based approach to detect and to group objects, e.g., grouping the bed with nightstand. Then, our system generates a personalized furniture layout by optimizing a cost function, incorporating the analyzed relevance of between and within groups, and the spatial constraints of the new layout. The experiment results show that our system can transfer furniture layout to new spaces automatically, keeping the user's preferences well.

关键词： human-centered computing Visualization Visualization design and evaluation methods

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Emotional Support Companions in Virtual Reality

Emotional Support Companions in Virtual Reality

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

作者： Graf, Linda Abramowski, Sophie BaBfeld, Melina Gerschermann, Kirsten GrieBhammer, Marius Scholemann, Leslie Masuch, Maic Univ Duisburg Essen Essen Germany

ISBN: (纸本)9781665484022

According to social psychological models, the presence of another person or even a virtual character in stressful situations can have stress-reducing effects. Thereby, the outcome can depend on the congruency between one's mood and the perceived mood of the other person. This dependence guides the design of VR applications for stress reduction, which use different virtual companion designs depending on the emotional state of individual users. This paper describes an ongoing design and development process towards such an emotionally supportive companion and shares initial results concerning the perception and stress-reducing effects of positively- and negatively-minded companions.

关键词： human-centered computing Visualization Empirical studies in HCI

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An Investigation on the Role of Affordance in the Design of Extended Reality based Environments for Surgical Training 16

An Investigation on the Role of Affordance in the Design of ...

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16th Annual IEEE International Systems Conference (SysCon)

作者： Gupta, Avinash Cecil, J. Pirela-Cruz, Miguel Shamsuddin, Rittika Kennison, Shelia Crick, Christopher Oklahoma State Univ Dept Comp Sci Ctr Cyber Phys Syst Stillwater OK 74078 USA Dign Reg Med Ctr Orthoped Dept Chandler AZ USA Oklahoma State Univ Dept Comp Sci Stillwater OK 74078 USA Oklahoma State Univ Psychol Dept Stillwater OK 74078 USA

ISBN: (纸本)9781665439923

This paper focuses on new types of affordances which can impact the HCI based design of Extended Reality (XR) based training environments. XR is an umbrella term used to describe Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) training environments are presented. In the context of HCI, the objective is to study the role of affordances in impacting the training outcomes in terms of comprehension and skills acquisition. New affordances are proposed along with a categorization under visual and haptic affordance. The notion of dynamic affordance is also proposed. The impact of these affordances on comprehension and skills acquisition is discussed in the context of a surgical procedure called condylar plating surgery (which is performed to treat the fractures of the femur bone). A genetic algorithm-based approach to help in surgical planning is also discussed, which can be integrated with the training activities. The results of Assessment activities on the acquisition of skills and knowledge during interactions with the training environments is also discussed.

关键词： human-centered computing human-Computer Interaction (HCI) Orthopedic Surgical Training Affordance

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