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检索条件"主题词=Human-centered computing"

共 2479 条记录，以下是471-480 订阅

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PianoSyncAR: Enhancing Piano Learning through Visualizing Synchronized Hand Pose Discrepancies in Augmented Reality 22

PianoSyncAR: Enhancing Piano Learning through Visualizing Sy...

引用

22nd IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Liu, Ruofan Wu, Erwin Liao, Chen-Chieh Nishioka, Hayato Furuya, Shinichi Koike, Hideki Tokyo Inst Technol Tokyo Japan Huawei Japan Tokyo Japan Sony Comp Sci Labs Tokyo Japan

ISBN: (纸本)9798350328387

Motor skill acquisition involves learning from spatiotemporal discrepancies between target and self-generated motions. However, in dexterous skills with numerous degrees of freedom, understanding and correcting these motor errors are challenging. This issue becomes crucial for experienced individuals who seek for mastering and sophisticating their skills, where even subtle errors need to be minimized. To enable efficient optimization of body posture in piano learning, we present PianoSyncAR, an augmented reality system that superimposes the time-varying complex hand postures of a teacher over the hand of a learner. Through a user study with 12 pianists, we demonstrate several advantages of the proposed system over conventional tablet-screen, which implicate the potential of AR training as a complementary tool for video-based skill learning in piano playing.

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

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Development of a Game System to Provide Enjoyable Playful Experiences to People in All Stages of Dementia

Development of a Game System to Provide Enjoyable Playful Ex...

引用

30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Hu WenKai Kuwahara, Noriaki Siriaraya, Panote Kyoto Inst Technol Kyoto Japan

ISBN: (纸本)9798350348392

In this work in progress paper, we discuss our work to develop an adaptive game system for people with dementia. The system makes use of projection-based AR and natural user interfaces to present game content in a manner which is engaging and allows for meaningful interaction. As the first step, we designed 7 different games, each based on a specific play experience. Later, we aim to investigate if each of these experiences could be enjoyed by users with varying levels of cognitive impairments.

关键词： Applied computing Computer games Social and professional topics Seniors human-centered computing Mixed /augmented reality

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An Immersive Labeling Method for Large Point Clouds

An Immersive Labeling Method for Large Point Clouds

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Lin, Tianfang Yu, Zhongyuan Volkens, Nico McGinity, Matthew Gumhold, Stefan Tech Univ Dresden Ctr Tactile Internet Human In The Loop Dresden Germany Tech Univ Dresden Dresden Germany

ISBN: (纸本)9798350348392

3D point clouds often require accurate labeling and semantic information. However, in the absence of fully automated methods, such labeling must be performed manually, which can prove extremely time and labour intensive. lb address this, we propose a novel hybrid CPU/GPU-based algorithm allowing instantaneous selection and modification of points supporting very large point clouds. Our tool provides a palette of 3D interactions for efficient viewing, selection and labeling of points using head-mounted VR and controllers. We evaluate our method with 25 users on tasks involving large point clouds and find convincing results that support the use case of VR-based point cloud labeling.

关键词： human-centered computing Virtual Reality Immersive interaction Immersive labeling

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Immersive Visualization of Open Geospatial Data in Unreal Engine

Immersive Visualization of Open Geospatial Data in Unreal En...

引用

30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： King, Tristan Davis, Kyle Saunders, Bradley Zuber, Ryan Rajasagi, Priya Lukaszczyk, Christina Komlodi, Anita Boot, Lee Univ Maryland Baltimore Cty Imaging Res Ctr Baltimore MD 21228 USA

ISBN: (纸本)9798350348392

Immersive geospatial data visualizations are a growing area of interest for research and commercial efforts. However, access to the necessary technologies is often limited by the expense of proprietary solutions. Furthermore, available solutions do not offer the ability to select and render only portions of global maps, creating significant and unnecessary inefficiencies. We developed a pipeline for efficient generation, rendering, and interaction of open-source geospatial vector features in Unreal EngineT" Virtual Reality (VR) at almost any scale, and a user interface for interacting with these vector map features and georegistered data visualizations (as game objects) in VR applications.

关键词： human-centered computing Visualization Visualization techniques human -centered computing Visualization Virtual Reality

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Demo: Cohort Visualization and Analysis of Patients with Inflammatory Bowel Disease

Demo: Cohort Visualization and Analysis of Patients with Inf...

引用

14th IEEE Workshop on Visual Analytics in Healthcare (VAHC)

作者： Sessler, David Ahmad, Salmah Kohlhammer, Jorn Fraunhofer IGD Darmstadt Germany Tech Univ Darmstadt Darmstadt Germany

ISBN: (纸本)9798350330243

This demo paper introduces the final version of a cohort analysis module for the support of treating patients with inflammatory bowel disease (IBD). It is not trivial to correctly diagnose the specific IBD in patients, and wrongly treated patients have to endure the disease effects for a long time, with large costs for the individuals and the healthcare systems. The goal of this work is complementing the examination of individual patients with interactive analyses of cohorts and populations with similar disease patterns to support learning from such similarities for future treatments. We report on additional data and functionality compared to 2021 and discuss an evaluation with eight IBD experts.

关键词： human-centered computing Visualization Visual Analytics Applied computing Life and medical sciences Health care information systems

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Free-form Conversation with human and Symbolic Avatars in Mixed Reality 22

Free-form Conversation with Human and Symbolic Avatars in Mi...

引用

22nd IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Zhu, Jiarui Kumaran, Radha Xu, Chengyuan Hollerer, Tobias Univ Calif Santa Barbara Santa Barbara CA 93106 USA

ISBN: (纸本)9798350328387

The integration of large language models and mixed reality technologies has enabled users to engage in free-form conversations with virtual agents across different "realities". However, if and how the agent's visual representation, especially when combined with mixed reality environments, will affect the conversation content or user experience is not yet fully understood. In this work, we design and conduct a user study involving two types of visual representations (a human avatar and a symbolic avatar) and two mixed reality environments (virtual reality and augmented reality), facilitating a free-form conversation experience with GPT-3 powered agents. We found evidence that the use of virtual or augmented realities can influence conversation content. Users chatting with avatars in virtual reality made significantly more references to the location or the space, suggesting they tended to perceive conversations as occurring in the agent's space, whereas the physical AR environment was perhaps more perceived as the user's space. Conversations with the human avatar improve user recall of the conversation, even though there is no evidence of increased information extracted during the conversation. These observations and our analysis of post-study questionnaires suggest that human avatars can positively impact user memory and experience. We hope our findings and the open-source implementation will help facilitate future research on free-form conversational agents in mixed reality.

关键词： Artificial intelligence (AI) large language models (LLMs) mixed reality human-centered computing Empirical studies in HCI computing methodologies Mixed / augmented reality computing methodologies Virtual reality

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LeanOn: Simulating Balance Vehicle Locomotion in Virtual Reality 22

LeanOn: Simulating Balance Vehicle Locomotion in Virtual Rea...

引用

22nd IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Zhao, Ziyue Li, Yue Liang, Hai-Ning Xian Jiaotong Liverpool Univ Sch Adv Technol Suzhou Peoples R China Xian Jiaotong Liverpool Univ Sch Adv Technol Dept Comp Suzhou Peoples R China

ISBN: (纸本)9798350328387

Locomotion plays a critical role in user experience in Virtual Reality (VR). This work presents a novel locomotion device, LeanOn, which aims to enhance immersion and feedback experience in VR. Inspired by balance vehicles, LeanOn is a leaning-based locomotion device that allows users to control their location by tilting a board on two balance wheels, with rotation enabled by two buttons near users' feet. To create a more realistic riding experience, LeanOn is equipped with a terrain vibration system that generates varying levels of vibration based on the roughness of the terrain. We conducted a within-subjects experiment (N=24) and compared the use of LeanOn and joystick steering in four aspects: cybersickness, spatial presence, feedback experience, and task performance. Participants used LeanOn with and without the vibration system to investigate the necessity of tactile feedback. The results showed that LeanOn significantly improved users' feedback experience, including autotelic, expressivity, harmony, and immersion, and maintained similar levels of cybersickness and spatial presence, compared to joystick steering. Our work contributes to the field of VR locomotion by validating a leaning-based steering prototype and showing its positive effect on improving users' feedback experience in VR. We also showed that tactile feedback in locomotion is necessary to further enhance immersion in VR.

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

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Towards an Understanding of Distributed Asymmetric Collaborative Visualization on Problem-solving 30

Towards an Understanding of Distributed Asymmetric Collabora...

引用

30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Tong, Wai Xia, Meng Wong, Kam Kwai Bowman, Doug A. Pong, Ting-Chuen Qu, Huamin Yang, Yalong HKUST Hong Kong Peoples R China Carnegie Mellon Univ Pittsburgh PA 15213 USA Virginia Tech Blacksburg VA USA

ISBN: (纸本)9798350348156

This paper provided empirical knowledge of the user experience for using collaborative visualization in a distributed asymmetrical setting through controlled user studies. With the ability to access various computing devices, such as Virtual Reality (VR) head-mounted displays, scenarios emerge when collaborators have to or prefer to use different computing environments in different places. However, we still lack an understanding of using VR in an asymmetric setting for collaborative visualization. To get an initial understanding and better inform the designs for asymmetric systems, we first conducted a formative study with 12 pairs of participants. All participants collaborated in asymmetric (PC-VR) and symmetric settings (PC-PC and VR-VR). We then improved our asymmetric design based on the key findings and observations from the first study. Another ten pairs of participants collaborated with enhanced PC-VR and PC-PC conditions in a follow-up study. We found that a well-designed asymmetric collaboration system could be as effective as a symmetric system. Surprisingly, participants using PC perceived less mental demand and effort in the asymmetric setting (PC-VR) compared to the symmetric setting (PC-PC). We provided fine-grained discussions about the trade-offs between different collaboration settings.

关键词： human-centered computing Visualization Visualization techniques human-centered computing Collaborative and social computing Empirical studies in collaborative and social computing

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AnnHoloTator: A Mixed Reality Collaborative Platform for Manufacturing Work Instruction Interaction

AnnHoloTator: A Mixed Reality Collaborative Platform for Man...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Stacchio, Lorenzo Armandi, Vincenzo Donatiello, Lorenzo Marfia, Gustavo Univ Bologna Dept Life Qual Studies Bologna Italy Univ Bologna Dept Comp Sci & Engn Bologna Italy Univ Bologna Dept Arts Bologna Italy

ISBN: (纸本)9798350348392

Admittedly, eXtend Reality (XR) technologies may play a key role in the digital transformation sparked by the Industry 4.0 initiative. Within the virtuality continuum, Augmented and Mixed Reality (AR, MR) emerge as disruptive technologies as they can improve industrial processes while maximizing worker efficiency and mobility by providing virtual elements in real-world scenarios where and when necessary, In particular, such technologies can foster the adoption of Lean Manufacturing (LM) paradigms supporting on-site assembly processes to improve productivity. We here describe how such an approach has been implemented in a real use case, with the development of AnnHoloTator, a collaborative mixed-reality platform for Microsoft Hololens 2 that allows users to visualize and manipulate digital documents directly in AR. Unlike existing systems, AnnHoloTator lets its users explore and modify the content of the digital documents stored in the cloud by interacting with their holograms. The system provides a data-flexible approach, considering that documents reside on a remote server, where also the majority of computation is performed. This provides an advantage: on-site professionals can directly annotate a virtual document and share it with other workers.

关键词： human-centered computing Visualization Visualization systems and tools human-centered computing Collaborative and social computing Collaborative and social computing systems and tools Applied computing Document management and text processing Document management

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Like a Rolling Stone: Effects of Space Deformation During Linear Acceleration on Slope Perception and Cybersickness 30

Like a Rolling Stone: Effects of Space Deformation During Li...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Nie, Tongyu Adhanom, Isayas Berhe Rosenberg, Evan Suma Univ Minnesota Minneapolis MN 55455 USA

ISBN: (纸本)9798350348156

The decoupled relationship between the optical and inertial information in virtual reality is commonly acknowledged as a major factor contributing to cybersickness. Based on laws of physics, we noticed that a slope naturally affords acceleration, and the gravito-inertial force we experience when we are accelerating freely on a slope has the same relative direction and approximately the same magnitude as the gravity we experience when standing on the ground. This provides the opportunity to simulate a slope by manipulating the orientation of virtual objects accordingly with the accelerating optical flow. In this paper, we present a novel space deformation technique that deforms the virtual environment to replicate the structure of a slope when the user accelerates virtually. As a result, we can restore the physical relationship between the optical and inertial information available to the user. However, the changes to the geometry of the virtual environment during space deformation remain perceptible to users. Consequently, we created two different transition effects, pinch and tilt, which provide different visual experiences of ground bending. A human subject study (N=87) was conducted to evaluate the effects of space deformation on both slope perception and cybersickness. The results confirmed that the proposed technique created a strong feeling of traveling on a slope, but no significant differences were found on measures of discomfort and cybersickness.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Virtual reality computing methodologies Computer graphics Graphics systems and interfaces Virtual reality

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