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检索条件"主题词=Human-centered computing"

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Scaling-up AR: University Campus as a Physical-Digital Metaverse

Scaling-up AR: University Campus as a Physical-Digital Metav...

引用

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

作者： Braud, Tristan Fernandez, Carlos Bermejo Hui, Pan Hong Kong Univ Sci & Technol Hong Kong Peoples R China Univ Helsinki Helsinki Finland

ISBN: (纸本)9781665484022

The metaverse promises large-scale and persistent environments for users to share experiences at the intersection between physical and digital. Augmented reality (AR) is one of the primary technologies that supports blending digital content with physical environments. However, most AR applications are currently single-user and present significant constraints in terms of time and location. Scaling up the technology to large-sized environments and massively multi-user experiences thus represents one of the primary challenges to achieving such a vision. Due to these constraints, current proposals for the metaverse primarily consist of virtual worlds with little duality between physical and digital. This paper studies the feasibility of a large-scale and persistent AR experience shared among all visitors on our university campus. We define an integrated framework to enable the first AR campus metaverse by considering the nature of the various environments and the available sensing platforms.

关键词： computing methodologies Computer graphics Graphics systems and interfaces Mixed / augmented reality human-centered computing Ubiquitous and mobile computing

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VCoach: Enabling Personalized Boxing Training in Virtual Reality

VCoach: Enabling Personalized Boxing Training in Virtual Rea...

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

作者： Chen, Hao Wang, Yujia Liang, Wei Beijing Inst Technol Jiaxing Peoples R China Beijing Inst Technol Yangtze Delta Reg Acad Jiaxing Peoples R China

ISBN: (纸本)9781665484022

We propose a training system in virtual reality, VCoach, automatically generating interactive and personalized boxing training drills for individual trainees. The training drill is generated in real-time based on the trainee's updated performance observed through wearable VR devices, including punch speed, reaction time, and punch pose. The training drill is visualized as a sequence of target points on a virtual heavy bag and the corresponding punch motion, as well as the performance feedback. Our experiments show that VCoach can generate personalized training drills to help trainees improve skills efficiently.

关键词： human-centered computing Visualization Visualization design and evaluation methods 1

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Visual Firewall Log Analysis - At the Border Between Analytical and Appealing

Visual Firewall Log Analysis - At the Border Between Analyti...

引用

IEEE Symposium on Visualization for Cyber Security (VizSec)

作者： Schufrin, Marija Lucke-Tieke, Hendrik Kohlhammer, Jorn Tech Univ Darmstadt Fraunhofer IGD Darmstadt Germany Fraunhofer IGD Darmstadt Germany

ISBN: (数字)9781665461481

ISBN: (纸本)9781665461481

In this paper, we present our design study on developing an interactive visual firewall log analysis system in collaboration with an IT service provider. We describe the human-centered design process, in which we additionally considered hedonic qualities by including the usage of personas, psychological need cards and interaction vocabulary. For the problem characterization we especially focus on the demands of the two main clusters of requirements: high-level overview and low-level analysis, represented by the two defined personas, namely information security officer and network analyst. This resulted in the prototype of a visual analysis system consisting of two interlinked parts. One part addresses the needs for rather strategical tasks while also fulfilling the need for an appealing appearance and interaction. The other part rather addresses the requirements for operational tasks and aims to provide a high level of flexibility. We describe our design journey, the derived domain tasks and task abstractions as well as our visual design decisions, and present our final prototypes based on a usage scenario. We also report on our capstone event, where we conducted an observed experiment and collected feedback from the information security officer. Finally, as a reflection, we propose the extension of a widely used design study process with a track for an additional focus on hedonic qualities.

关键词： human-centered computing Visualization Information visualization Security and privacy human and societal aspects of security and privacy

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Designing Sound Synthesis Interfaces for Head-mounted Augmented Reality

Designing Sound Synthesis Interfaces for Head-mounted Augmen...

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

作者： Wang, Yichen Martin, Charles Australian Natl Univ Sch Comp Canberra ACT Australia

ISBN: (纸本)9781665484022

We report on designing a sound synthesis interface for a head-mounted augmented reality environment. The increased accessibility of augmented reality (AR) devices has incentivised the exploration of sound applications for music performance in computer music and other relevant communities. However, interaction affordances vary based on the specific AR device and thus implies different design considerations. In this poster, we present different interface prototypes for a frequency modulation synthesis system in the Microsoft HoloLens 2 and report our insights during the process of their developments.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Mixed/augmented reality Applied computing Arts and humanities Sound and music computing

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Real-time Gaze Tracking with Head-eye Coordination for Head-mounted Displays 21

Real-time Gaze Tracking with Head-eye Coordination for Head-...

引用

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

作者： Chen, Lingling Li, Yingxi Bai, Xiaowei Wang, Xiaodong Hu, Yongqiang Song, Mingwu Xie, Liang Yan, Ye Yin, Erwei Hebei Univ Technol Sch Artificial Intelligence & Data Sci Tianjin Peoples R China Acad Mil Sci Def Innovat Inst Beijing Peoples R China Tianjin Artificial Intelligence Innovat Ctr Tianjin Peoples R China

ISBN: (数字)9781665453257

ISBN: (纸本)9781665453257

High-accuracy, low-latency gaze tracking is becoming one of the indispensable features in augmented reality (AR) head-mounted devices (HMDs). Researchers have proposed different approaches to predict gaze positions from eye images. However, since only the eye modality is focused, these appearance-based algorithms are still struggle to trade off the accuracy and running speed in HMDs. In this paper, we propose a lightweight multi-modal network (HE-Tracker) to regress gaze positions. By fusing head-movement features with eye features, HE-Tracker achieves comparable accuracy (3.655. in all subjects) and 27x speedup (48 fps in the specialized AR HMD) compared to the state-of-the-art gaze tracking algorithm. We further demonstrate that when applying our head-eye coordination strategy to other baseline models, all these models achieve at least 6.36% performance improvement without a pronounced effect on running speed. Moreover, we construct HE-Gaze, the first multi-modal dataset with eye images and head-movement data for near-eye gaze tracking. This dataset is currently made of 757,360 frames and 15 persons, providing an opportunity to foster research in multi-modal gaze tracking approaches. Our dataset is available at DOWNLOAD LINK1.

关键词： human-centered computing human computer interaction (HCI) Interaction paradigms Augmented reality computing methodologies Artificial intelligence Computer vision Computer vision problems

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Virtual Inspection of Additively Manufactured Parts 15

Virtual Inspection of Additively Manufactured Parts

引用

IEEE 15th Pacific Visualization Symposium (PacificVis)

作者： Klacansky, Pavol Miao, Haichao Gyulassy, Attila Townsend, Andrew Champley, Kyle Tringe, Joseph Pascucci, Valerio Bremer, Peer-Timo Univ Utah SCI Inst Salt Lake City UT 84112 USA LLNL Livermore CA USA

ISBN: (纸本)9781665423359

Advanced manufacturing techniques, such as additive manufacturing, enable the design of increasingly complex components for a wide range of industrial applications. However, this complexity makes qualification of the parts, determining whether a part is within some margin of error from the initial design, difficult. To inspect and qualify complex internal geometries that are not accessible with an external probe, parts are typically scanned with computed tomography (CT), and manually compared to the computer-aided design (CAD) model using visual inspections. Matching the CAD model to the 3D reconstructed object is challenging in a traditional desktop environment due to the lack of depth perception and 3D interaction. An additional challenge comes from the geometric complexity of CAD meshes and large-scale CT scans. We present a virtual reality (VR) system for manual qualification, providing a novel defect visualization method. First, we describe a semiautomatic CAD-to-Scan Registration approach in VR using a finite element mesh. Second, we introduce the Defect Box, which enables full-resolution inspection for massive scans and CAD-CT comparison of local defect regions. Finally, our system includes intuitive 3D Metrology methods that enable natural interactions for the measurement of features and defects in VR. We demonstrate our approach on both real and synthetic data and discuss feedback from four expert users in nondestructive qualification.

关键词： human-centered computing Visualization Visualization systems and tools human-centered computing Visualization Visualization application domains Scientific visualization human-centered computing Visualization Empirical studies in visualization

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Perceptions of Colour Pickers and Companions in Virtual Reality Art-Making

Perceptions of Colour Pickers and Companions in Virtual Real...

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

作者： Alex, Marylyn Wunsche, Burkhard C. Lottridge, Danielle Univ Auckland Auckland New Zealand

ISBN: (纸本)9781665484022

Virtual reality art is reshaping digital art experiences but may elicit different first impressions across disparate age groups. We investigate first impressions of VR colour pickers and the impact of a virtual companion via an online survey with 63 adults and 24 older adults. The colour pickers differed significantly in perceived hedonic qualities. We found no statistical differences between perceptions of adults and older adults. The virtual companion had no significant effect on participants' overall experiences. However, we found statistical trends where older adults rated the virtual companion higher in terms of companionship and making VR art more engaging.

关键词： human-centered computing human computer interaction (HCI) HCI design and evaluation methods User studies human-centered computing human computer interaction (HCI) Interaction Paradigms Virtual Reality

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Investigating Display Position of a Head-Fixed Augmented Reality Notification for Dual-task

Investigating Display Position of a Head-Fixed Augmented Rea...

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

作者： Lee, Hyunjin Woo, Woontack KAIST UVR Lab Daejeon South Korea KAIST KI ITC ARRC Daejeon South Korea

ISBN: (纸本)9781665484022

Providing additional information in the proper position of augmented reality (AR) head-mounted display (HMD) can help increase AR performance and usability for dual-task. Therefore, our study investigated how to place notifications for the dual-task to address this. We compared eight display positions and two tasks (single and dual tasks) to identify the appropriate area for displaying notifications. We confirmed that the middle-right reduces response time and task load. In contrast, the top-left is the location, which should avoid providing any notification in AR dual-task. Our study contributes to designing AR notifications on HMDs to enhance everyday AR experiences.

关键词： human-centered computing human Computer Interaction (HCI) Interaction paradigms Virtual reality, Mixed / augmented reality

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NeuroLens: Augmented Reality-based Contextual Guidance through Surgical Tool Tracking in Neurosurgery 21

NeuroLens: Augmented Reality-based Contextual Guidance throu...

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

作者： Eom, Sangjun Sykes, David Rahimpour, Shervin Gorlatova, Maria Duke Univ Dept Elect & Comp Engn Durham NC 27706 USA Duke Univ Sch Med Durham NC 27706 USA Univ Utah Dept Neurosurg Salt Lake City UT 84112 USA

ISBN: (数字)9781665453257

ISBN: (纸本)9781665453257

External ventricular drain (EVD) is a common, yet challenging neurosurgical procedure of placing a catheter into the brain ventricular system that requires prolonged training for surgeons to improve the catheter placement accuracy. In this paper, we introduce NeuroLens, an Augmented Reality (AR) system that provides neurosurgeons with guidance that aides them in completing an EVD catheter placement. NeuroLens builds on prior work in AR-assisted EVD to present a registered hologram of a patient's ventricles to the surgeons, and uniquely incorporates guidance on the EVD catheter's trajectory, angle of insertion, and distance to the target. The guidance is enabled by tracking the EVD catheter. We evaluate NeuroLens via a study with 33 medical students, in which we analyzed students' EVD catheter insertion accuracy and completion time, eye gaze patterns, and qualitative responses. Our study, in which NeuroLens was used to aid students in inserting an EVD catheter into a realistic phantom model of a human head, demonstrated the potential of NeuroLens as a tool that will aid and educate novice neurosurgeons. On average, the use of NeuroLens improved the EVD placement accuracy of year 1 students by 39.4% and of the year 2-4 students by 45.7%. Furthermore, students who focused more on NeuroLens-provided contextual guidance achieved better results.

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

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GazeDock: Gaze-Only Menu Selection in Virtual Reality using Auto-Triggering Peripheral Menu 29

GazeDock: Gaze-Only Menu Selection in Virtual Reality using ...

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

作者： Yi, Xin Lu, Yiqin Cai, Ziyin Wu, Zihan Wang, Yuntao Shi, Yuanchun Tsinghua Univ Beijing Peoples R China Beijing Univ Post & Telecommun Beijing Peoples R China

ISBN: (纸本)9781665496179

Gaze-only input techniques in VR face the challenge of avoiding false triggering due to continuous eye tracking while maintaining interaction performance. In this paper, we proposed GazeDock, a technique for enabling fast and robust gaze-based menu selection in VR. GazeDock features a view-fixed peripheral menu layout that automatically triggers appearing and selection when the user's gaze approaches and leaves the menu zone, thus facilitating interaction speed and minimizing the false triggering rate. We built a dataset of 12 participants' natural gaze movements in typical VR applications. By analyzing their gaze movement patterns, we designed the menu UI personalization and optimized selection detection algorithm of GazeDock. We also examined users' gaze selection precision for targets on the peripheral menu and found that 4-8 menu items yield the highest throughput when considering both speed and accuracy. Finally, we validated the usability of GazeDock in a VR navigation game that contains both scene exploration and menu selection. Results showed that GazeDock achieved an average selection time of 471ms and a false triggering rate of 3.6%. And it received higher user preference ratings compared with dwell-based and pursuit-based techniques.

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

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