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检索条件"主题词=Human-centered computing"

共 2488 条记录，以下是691-700 订阅

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Head in the Clouds - Floating Locomotion in Virtual Reality

Head in the Clouds - Floating Locomotion in Virtual Reality

引用

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

作者： Ganapathi, Priya Thiel, Felix J. Swapp, David Steed, Anthony Indian Inst Technol Gauhati India UCL London England

ISBN: (纸本)9781665484022

Navigating large virtual spaces within the confines of a small tracked volume in a seated position becomes a serious accessibility issue when users' lower seating position reduces their visibility and makes it uncomfortable to reach for items with ease. Hence, we propose a "floating" accessibility technique, in which a seated VR user experiences the virtual environment from the perspective of a standing eye height. We conducted a user study comparing sitting, standing and floating conditions and observed that the floating technique had no detrimental effect in comparison to the standing technique and had a slight benefit over the sitting technique.

关键词： human-centered computing human Computer Interaction (HCI) Design and Evaluation Methods User Study human-centered computing Accessibility Accessibility Systems and Tools human-centered computing human Computer Interaction (HCI) Interaction Paradigms Virtual Reality

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AR-Assisted Surgical Guidance System for Ventriculostomy

AR-Assisted Surgical Guidance System for Ventriculostomy

引用

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

作者： Eom, Sangjun Kim, Seijung Rahimpour, Shervin Gorlatova, Maria Duke Univ Dept Elect & Comp Engn Durham NC 27706 USA Duke Univ Dept Comp Sci Durham NC 27706 USA Univ Utah Dept Neurosurg Salt Lake City UT 84112 USA

ISBN: (纸本)9781665484022

Augmented Reality (AR) is increasingly used in medical applications for visualizing medical information. In this paper, we present an AR-assisted surgical guidance system that aims to improve the accuracy of catheter placement in ventriculostomy, a common neurosurgical procedure. We build upon previous work on neurosurgical AR, which has focused on enabling the surgeon to visualize a patient's ventricular anatomy, to additionally integrate surgical tool tracking and contextual guidance. Specifically, using accurate tracking of optical markers via an external multi-camera OptiTrack system, we enable Microsoft HoloLens 2-based visualizations of ventricular anatomy, catheter placement, and the information on how far the catheter tip is from its target. We describe the system we developed, present initial hologram registration results, and comment on the next steps that will prepare our system for clinical evaluations.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Mixed / augmented reality

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Exploring Three-Dimensional Locomotion Techniques in Virtual Reality 21

Exploring Three-Dimensional Locomotion Techniques in Virtual...

引用

21st IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Lim, Donghae Shirai, Shizuka Orlosky, Jason Ratsamee, Photchara Uranishi, Yuki Takemura, Haruo Osaka Univ Suita Osaka Japan Augusta Univ Augusta GA USA Osaka Inst Technol Osaka Japan

ISBN: (数字)9781665453653

ISBN: (纸本)9781665453653

Most existing Virtual Reality (VR) locomotion interfaces are designed for ground-based locomotion, limiting the degrees of freedom (DoF) during movement as they would in the real world. However, an optimized three-dimensional travel technique is required for certain virtual scenes such as flying and diving. This study evaluated three different interface types: Slider, Teleport, and Point-Tug, that were created based on existing ground-based locomotion methods in order to investigate the features required for three-dimensional (3D) movement. We conducted a within-subjects study with 3D navigation tasks and evaluated the performance when navigating a virtual environment using three different 3D locomotion interfaces. The results show that Slider, which allows users to move continuously, has an advantage over the others, and interfaces such as teleportation, which are widely used in ground-based locomotion, are likely to be perceived differently in 3D locomotion.

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

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Let Every Seat Be Perfect! A Case Study on Combining BIM and VR for Room Planning

Let Every Seat Be Perfect! A Case Study on Combining BIM and...

引用

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

作者： Tong, Wai Li, Haotian Wei, Huan Xie, Liwenhan Lin, Yanna Qu, Huamin Hong Kong Univ Sci & Technol Hong Kong Peoples R China

ISBN: (纸本)9781665484022

When communicating indoor room design, professional designers normally rely on software like Revit to export walk-through videos for their clients. However, a lack of in-situ experience restricts the ultimate users from evaluating the design and hence provides limited feedback, which may lead to a rework after actual construction. In this case study, we explore empowering end-users by exposing rich design details through a Virtual Reality (VR) application based on building an information model. Qualitative feedback in our user study shows promising results. We further discuss the benefits of the approach and opportunities for future research.

关键词： human-centered computing Interaction paradigms Virtual Reality

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Asymmetric interfaces with stylus and gesture for VR sketching

Asymmetric interfaces with stylus and gesture for VR sketchi...

引用

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

作者： Zou, Qianyuan Bai, Huidong Gao, Lei Fowler, Allan Billinghurst, Mark

ISBN: (纸本)9781665484022

Virtual Reality (VR) can be used for design and artistic applications. However, traditional symmetrical input devices are not specifically designed as creative tools and may not fully meet artist needs. In this demonstration, we present a variety of tool-based asymmetric VR interfaces to assist artists to create artwork with better performance and easier effort. These interaction methods allow artists to hold different tools in their hands, such as wearing a data glove on the left hand and holding a stylus in the right-hand. We demonstrate this by showing a stylus and glove based sketching interface. We conducted a pilot study showing that most users prefer to create art with different tools in both hands.

关键词： human-centered computing Virtual Reality Asymmetric Interface

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Combining Real-World Constraints on User Behavior with Deep Neural Networks for Virtual Reality (VR) Biometrics 29

Combining Real-World Constraints on User Behavior with Deep ...

引用

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

作者： Miller, Robert Banerjee, Natasha Kholgade Banerjee, Sean Clarkson Univ Potsdam NY 13699 USA

ISBN: (纸本)9781665496179

Deep networks have demonstrated enormous potential for identification and authentication using behavioral biometrics in virtual reality (VR). However, existing VR behavioral biometrics datasets have small sample sizes which can make it challenging for deep networks to automatically learn features that characterize real-world user behavior and that may enable high success, e.g., high-level spatial relationships between headset and hand controller devices and underlying smoothness of trajectories despite noise. We provide an approach to perform behavioral biometrics using deep networks while incorporating spatial and smoothing constraints on input data to represent real-world behavior. We represent the input data to neural networks as a combination of scale- and translation-invariant device-centric position and orientation features, and displacement vectors representing spatial relationships between device pairs. We assess identification and authentication by including spatial relationships and by performing Gaussian smoothing of the position features. We evaluate our approach against baseline methods that use the raw data directly and that perform a global normalization of the data. By using displacement vectors, our work shows higher success over baseline methods in 36 out of 42 cases of analysis done by varying user sets and pairings of VR systems and sessions.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Virtual reality Security and privacy Security services Authentication Biometrics

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Stereoscopic Video See-Through Head-Mounted Displays for Laser Safety: An Empirical Evaluation at Advanced Optics Laboratories 21

Stereoscopic Video See-Through Head-Mounted Displays for Las...

引用

21st IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Li, Ke Choudhuri, Aradhana Schmidt, Susanne Lang, Tino Bacher, Reinhard Hartl, Ingmar Leemans, Wim Steinicke, Frank Deutsch Elektronen Synchrotron DESY Hamburg Germany Univ Hamburg Dept Informat Human Comp Interact Hamburg Germany

ISBN: (数字)9781665453257

ISBN: (纸本)9781665453257

Nowadays, high-power and multi-spectral lasers are used in many scientific experiments and industrial processes. Those laser sources can rapidly cause permanent damage to human eyes. Research and development work with those laser sources requires typically wearing personal protective equipment (PPE), such as laser safety goggles as eye protectors. Currently, laser safety goggles are based on optical spectral filters, which block spectral bands where hazardous laser radiation is emitted. Such laser safety goggles can filter up to 99% of the visible spectrum, rendering researchers working in hazardous and complex laboratory environments visually impaired. Video see-through head-mounted displays (VST-HMD) could be used as eye protectors without reducing users' visibility of the environment since they can be constructed such that all laser and ambient light is blocked from the human eye. To date, this application domain is still largely unexplored in the MR community. To our best knowledge, there has been no comprehensive work that investigates the human factors of such an eye protection method at an advanced optics laboratory. In this work, we present the results of an empirical study where we evaluate the usability, perceived safety, advantages, and limitations of using VST-HMDs as laser safety goggles. We use a stereoscopic VST-HMD developed through a human-centered design approach at one of the most advanced optics laboratories in the world. 18 participants including 14 laser experts evaluated the current prototype. Our user evaluation and field studies confirm that the complex and hazardous working conditions at high-energy laser laboratories could be significantly improved with MR technology.

关键词： Laser Safety Mixed Reality Video See-through Head Mounted Display human-centered computing

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Need for human Extended Reality Interaction (HXRI) Framework for the design of Extended Reality-based Training Environments for Surgical Contexts 10

Need for Human Extended Reality Interaction (HXRI) Framework...

引用

IEEE 10th International Conference on Serious Games and Applications for Health(SeGAH)

作者： Gupta, Avinash Cecil, J. Pirela-Cruz, Miguel Kennison, Shelia Hicks, Nikole A. Univ Illinois Dept Ind & Syst Enterprise Engn Urbana IL 61801 USA Oklahoma State Univ Ctr Cyber Phys Syst Comp Sci Stillwater OK 74078 USA Creighton Univ Sch Med Phoenix AZ USA Oklahoma State Univ Psychol Dept Stillwater OK 74078 USA Northern Oklahoma Coll Nursing Tonkawa OK USA

ISBN: (数字)9781665484398

ISBN: (纸本)9781665484398

There is a rapid increase in the use of Extended Reality (XR) based simulators for surgical training. Researchers have developed XR-based simulators for various surgical fields such as laparoscopic surgery, brain surgery, and eye surgery, among others. However, there is a lack of effort in developing a holistic framework to support the creation of such XR-based simulators. The objective of this paper is to demonstrate the need for a framework by integration of various elements such as human-Computer Interaction (HCI), participatory design, information modeling, and computational approaches to support the creation of XR-based simulators. A detailed survey of the current state of the art for the development of XR-based simulators is presented in this paper followed by the gap in the current research. The need for a framework based on the current gap is also showcased in the paper. Finally, the proposed human eXtended Reality Interaction (HXRI) framework for the creation of XR-based training environments for surgical contexts is discussed.

关键词： human-centered computing Surgical Training Orthopedic Surgery Information Modeling Participatory Design

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COCTEAU: an Empathy-Based Tool for Decision-Making 22

COCTEAU: an Empathy-Based Tool for Decision-Making

引用

31st ACM Web Conference (WWW)

作者： Mauri, Andrea Tocchetti, Andrea Corti, Lorenzo Hsu, Yen-Chia Verma, Himanshu Brambilla, Marco Delft Univ Technol Delft Netherlands Politecn Milan Milan Italy

ISBN: (纸本)9781450391306

Traditional approaches to data-informed policymaking are often tailored to specific contexts and lack strong citizen involvement and collaboration, which are required to design sustainable policies. We argue the importance of empathy-based methods in the policymaking domain given the successes in diverse settings, such as healthcare and education. In this paper, we introduce COCTEAU (Co-Creating The European Union), a novel framework built on the combination of empathy and gamification to create a tool aimed at strengthening interactions between citizens and policy-makers. We describe our design process and our concrete implementation, which has already undergone preliminary assessments with different stakeholders. Moreover, we briefly report pilot results from the assessment. Finally, we describe the structure and goals of our demonstration regarding the newfound formats and organizational aspects of academic conferences.

关键词： Crowdsourcing empathy gamification human-centered computing decision-making

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TranSlider: User-Controlled Augmented Content Presence Visualization in AR Collaboration 21

TranSlider: User-Controlled Augmented Content Presence Visua...

引用

21st IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Yoon, Boram Kim, Seonji Woo, Woontack KAIST UVR Lab Daejeon South Korea KAIST KI ITC ARRC Daejeon South Korea

ISBN: (数字)9781665453653

ISBN: (纸本)9781665453653

We present a user interface method called TranSlider, designed for an AR collaboration with the concept of customized visualization of the user-selected augmented content. In AR, virtual content is augmented on top of the real world, so collaborating users are inevitably exposed to the diverse-overlapped information layers. Because the human recognition system has limited capacity, this overloaded information may burden the user to understand fully, and it is also challenging to manipulate among occluded objects. To solve this issue, we designed the TranSlider that allows users to control the presence of augmented content being transparent or highlighted based on the user interaction. The implemented prototype includes UI components, a manipulation function, and a network-connected collaboration module, and its applicability was verified through a preliminary interview. We expect that it would effectively support general AR collaborations and those with specific purposes, such as designing complex, hierarchical, or made up of many partial assets.

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

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