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检索条件"主题词=Human-centered computing"

共 2507 条记录，以下是31-40 订阅

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Effect of Gaze Visualization on Task Efficiency and User Behavior for Guidance Scenarios in Co-Located AR Collaboration

Effect of Gaze Visualization on Task Efficiency and User Beh...

引用

2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Sarri, Froso Mania, Katerina Technical University of Crete School of Electrical & Computer Engineering Greece

ISBN: (纸本)9798331514846

Augmented Reality (AR)-enabled collaboration enhances contextual guidance in shared environments, where unambiguous cues are essential, for swift and accurate task completion. Gaze-based cues offer clear, non-verbal indication of intent, reducing interaction ambiguity. While prior research has studied the effectiveness of gaze-based visualization in scenarios where collaborators share the same level of knowledge, less attention has been shown to guidance scenarios, where one user provides task-related information to another. Existing studies often focus on task outcomes (e.g., completion time, error rate) without analyzing gaze data to gain further insight into user behavior and attention. This study leverages gaze-based cues as an active means of communication in guidance scenarios, assessing their impact on both task performance and user behavior through gaze data analysis. The developed system incorporates gaze-based visualizations, including dynamic representations of gaze behavior, to deliver task-critical guidance. These are compared to verbal instructions using quantitative metrics for task effectiveness and gaze analysis, alongside subjective feedback, to determine whether they reduce ambiguity and enhance collaboration. Our study showed that gaze-based visualizations significantly reduced task related errors, with contextual triggered cues offering the best balance between speed and correctness. Gaze analysis revealed that gaze-based visualizations effectively directed participants' attention to task-relevant areas, reducing unnecessary visual exploration. Participants reported lower perceived workload in gaze-based conditions, further supporting their effectiveness in enhancing collaboration and reducing ambiguity. © 2025 IEEE.

关键词： HCI design and evaluation methods human computer interaction (HCI) human-centered computing Interaction paradigms Mixed augmented reality User studies

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Extending Interaction Fidelity: The Impact of Feedback Symmetry on the Usability of Mixed Reality Applications

Extending Interaction Fidelity: The Impact of Feedback Symme...

引用

2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Mayer, Daniel T. Halbritter, Cecilia Dörner, Ralf Weier, Martin Hochschule RheinMain Germany RheinMain University Germany

ISBN: (纸本)9798331514846

This paper introduces an extension to the Framework for Interaction Fidelity Analysis (FIFA) that incorporates a new dimension called Feedback Symmetry. While FIFA effectively evaluates how closely Mixed Reality (MR) interaction techniques resemble their real-world counterparts in terms of biomechanical and control aspects, it does not fully account for the role of output feedback in user experience and performance. By adding Feedback Symmetry, a measure capturing the timeliness, accuracy, and realism of system responses, we shift from focusing solely on input fidelity toward a holistic, bidirectional assessment of MR interactions. Utilizing this extended framework to analyze previously published experimental data reveals improved alignment between predicted fidelity scores and observed user performance compared to the original framework. In particular, conditions previously rated as high in fidelity but performing poorly in practice become more accurately represented when feedback properties are considered. This approach clarifies why certain natural yet inconsistent feedback schemes impede usability, while simpler yet consistent cues can enhance user outcomes. Our results highlight the importance of balanced feedback design and suggest that incorporating Feedback Symmetry into FIFA can guide researchers and developers in refining their interaction techniques, ultimately improving the usability and effectiveness of MR applications. © 2025 IEEE.

关键词： human-centered computing Interaction techniques Mixed / augmented reality

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AvatarMirror: Rendering Restoration for Real-Time Immersive Presence System

AvatarMirror: Rendering Restoration for Real-Time Immersive ...

引用

2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Li, Jia Liu, Yan Gao, Nan Shang, Ke Lenovo Research China Casia China

ISBN: (纸本)9798331514846

human-centered immersive computing is catching on within VR and AR. We establish a real-time immersive presence system called AvatarMirror that enables arbitrary characters to look at themselves instantly in novel stereo views. First, stereo matching is implemented to acquire multi-view depth priors, based on which the human topology is reconstructed through raycasting from a novel perspective. Then, the color information from the referenced views is adaptively blended to perform the human rendering. Furthermore, we propose an RR-Net to conduct rendering restoration. AvatarMirror realizes real-time high-fidelity immersive presence with multi-threaded scheduling and CUDA acceleration. © 2025 IEEE.

关键词： GAN human-centered computing Image restoration Immersive display Raycasting Rendering

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RAG-VR: Leveraging Retrieval-Augmented Generation for 3D Question Answering in VR Environments

RAG-VR: Leveraging Retrieval-Augmented Generation for 3D Que...

引用

2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Ding, Shiyi Chen, Ying Kennesaw State University Department of Information Technology United States

ISBN: (纸本)9798331514846

Recent advances in large language models (LLMs) provide new opportunities for context understanding in virtual reality (VR). However, VR contexts are often highly localized and personalized, limiting the effectiveness of general-purpose LLMs. To address this challenge, we present RAG-VR, the first 3D question-answering system for VR that incorporates retrieval-augmented generation (RAG), which augments an LLM with external knowledge retrieved from a localized knowledge database to improve the answer quality. RAG-VR includes a pipeline for extracting comprehensive knowledge about virtual environments and user conditions for accurate answer generation. To ensure efficient retrieval, RAG-VR offloads the retrieval process to a nearby edge server and uses only essential information during retrieval. Moreover, we train the retriever to effectively distinguish among relevant, irrelevant, and hard-to-differentiate information in relation to questions. RAG-VR improves answer accuracy by 17.9%-41.8% and reduces end-to-end latency by 34.5%-47.3% compared with two baseline systems. © 2025 IEEE.

关键词： computing methodologies-Artificial intelligence-Natural language processing-Natural language generation human computer interaction (HCI) human-centered computing Interaction paradigms Virtual reality

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Enhancing human-Robot Teleoperation through Depth Sensing and eXtended Reality

Enhancing Human-Robot Teleoperation through Depth Sensing an...

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2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Ganatra, Shyam Jeong, Heejin Arizona State University United States

ISBN: (纸本)9798331514846

Teleoperation enables the control of robots in remote, complex, or hazardous environments such as manufacturing, healthcare, and disaster response. However, traditional teleoperation systems lack immersive depth perception, which limits spatial awareness and precision. This paper presents a novel teleoperation framework integrating an Intel RealSense D345i depth camera with the Reachy humanoid robot, enhanced by augmented reality (AR) overlays in a virtual reality (VR) interface. By leveraging depth sensing, point cloud processing, and AR visualization, the system improves task accuracy, spatial awareness, and user experience. Our system utilizes advanced frameworks for seamless AR and VR integration. Preliminary findings demonstrate enhanced performance in tasks requiring precise object manipulation, with future user studies planned for quantitative evaluation. © 2025 IEEE.

关键词： Artificial intelligence computing methodologies human computer interaction (HCI) human-centered computing Robotics User models

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Event Camera-Based Interactive Visualization System of High-Speed Events

Event Camera-Based Interactive Visualization System of High-...

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2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Matsunaga, Kotoka Masai, Katsutoshi Saito, Hideo Keio University Japan Kyushu University Japan

ISBN: (纸本)9798331514846

High-speed phenomena, which are important in fields such as sports and fluid dynamics, are often challenging for the human visual system to perceive precisely. To better understand these high-speed phenomena, it is important to present users the information intuitively and precisely without time delays. Existing visualization techniques, such as high-speed cameras and stroboscopes, are effective for capturing high-speed events but are not well-suited for interactive visualization *** this study, we propose an interactive visualization system of high-speed events using an event camera. The system precisely captures high-speed phenomena and allows users to replay important scenes instantly with a single key press. Through a user study involving 38 participants, we confirmed that the event camera system enhances human visual perception. Furthermore, a case study demonstrated that the interactive design enables users to interpret high-speed phenomena more intuitively. These findings suggest that our system can effectively augment users' visual perception. © 2025 IEEE.

关键词： Field studies HCI design and evaluation methods human computer interaction (HCI) human-centered computing Visualization

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Advancing Cybersickness Prediction in Immersive Virtual Reality Using Pre-Trained Large Foundation Models

Advancing Cybersickness Prediction in Immersive Virtual Real...

引用

2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Kundu, Ripan Kumar Hoque, Khaza Anuarul University of Missouri-Columbia United States

ISBN: (纸本)9798331514846

Cybersickness is one of the problems that users often encounter during virtual reality (VR) experiences. Existing machine learning (ML) and deep learning (DL) methods for predicting cybersickness require massive amounts of high-quality data for effective training, extended training times to achieve accurate predictions, and lack of transferability capability to new VR environments. To address this, we propose a novel approach using zero-shot and few-shot learning mechanisms to leverage the knowledge of pre-trained large foundation models, namely a time series generative pre-trained transformer (TimeGPT) and Chronos. Validated on two open-source VR cyber-sickness datasets, namely Simulations 2021 and APAL Head 2019 datasets, our fine-tuned TimeGPT model outperforms traditional DL models, achieving superior accuracy (RMSE of 0.26 and 2.69 for the Simulations 2021 and APAL Head 2019 datasets) and significantly reduced training times (up to 81% and 79% for the same datasets) compared to the trained-from-scratch Transformer models. © 2025 IEEE.

关键词： human Computer Interaction human-centered computing Systems for interaction design Virtual Reality

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Illusion Worlds: Deceptive UI Attacks in Social VR

Illusion Worlds: Deceptive UI Attacks in Social VR

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2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Lee, Junhee Heo, Hwanjo Woo, Seungwon Kim, Minseok Kim, Jongseop Kim, Jinwoo Kwangwoon University South Korea ETRI South Korea

ISBN: (纸本)9798331514846

Social Virtual Reality (VR) platforms have surged in popularity, yet their security risks remain underexplored. This paper presents four novel UI attacks that covertly manipulate users into performing harmful actions through deceptive virtual content. Implemented on VRChat and validated in an IRB-approved study with 30 participants, these attacks demonstrate how deceptive elements can mislead users into malicious actions without their awareness. To address these vulnerabilities, we propose MetaScanner, a proactive countermeasure that rapidly analyzes objects and scripts in virtual worlds, detecting suspicious elements within seconds. © 2025 IEEE.

关键词： human and societal aspects of security and privacy human computer interaction (HCI) human-centered computing Interaction paradigms Security and privacy Usability in security and privacy Virtual reality

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Pedaling into Presence: Evaluating Presence and User Experience in VR Cycling vs. Controller Use

Pedaling into Presence: Evaluating Presence and User Experie...

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2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Brade, Jennifer Kögel, Alexander Klimant, Franziska Dix, Martin Chemnitz University of Technology Germany Chemnitz University of Technology Germany

ISBN: (纸本)9798331514846

This study examined two input methods - real bicycle and gaming controller - in a virtual bike tour. Participants engaged in a virtual bike tour using both methods while assessing presence and user experience. The bicycle method notably enhanced sense of physical space, engagement, and ecological validity, resulting in a more immersive experience. While pragmatic qualities showed no significant differences, the bicycle method excelled in hedonic qualities. The findings indicate that realistic physical interaction boosts presence and appeal, suggesting future research on different movement types. © 2025 IEEE.

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

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Magic You

Magic You

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2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops, VRW 2025

作者： Guo, Tongze Zhou, Wen Ding, Ni Chen, Yansong Li, Shaolong Beijing Normal University China

ISBN: (纸本)9798331514846

"Magic You"is a virtual reality interactive narrative experience. It is a coming-of-age story about ADHD, with joys, anxieties, bitter memories, and growing pains, told in a hand-drawn, coloured-pencil aesthetic as a magical journey. The artwork hopes to present the experiences and imagination of ADHD patients to the audience in a poetic way and give the audience a better understanding of ADHD, a manifestation of neurodiversity. © 2025 IEEE.

关键词： Applied computing Arts and humanities human computer interaction (HCI) human-centered computing Interaction paradigms Media arts Virtual reality

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