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检索条件"主题词=Human-centered computing"

共 2003 条记录，以下是781-790 订阅

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How Late is Too Late? Effects of Network Latency on Audio-Visual Perception During AR Remote Musical Collaboration

How Late is Too Late? Effects of Network Latency on Audio-Vi...

引用

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

作者： Hopkins, Torin Weng, Suibi Che-Chuan Vanukuru, Rishi Wenzel, Emma Banic, Amy Do, Ellen Yi-Luen Univ Colorado ATLAS Inst Boulder CO 80309 USA Univ Wyoming Interact Real Lab Laramie WY 82071 USA

ISBN: (纸本)9781665484022

Networked Musical Collaboration requires near-instantaneous network transmission for successful real-time collaboration. We studied the way changes in network latency affect participants' auditory and visual perception in latency detection, as well as latency tolerance in AR. Twenty-four participants were asked to play a hand drum with a prerecorded remote musician rendered as an avatar in AR at different levels of audio-visual latency. We analyzed the subjective responses of the participants from each session. Results suggest a minimum noticeable delay value between 160 milliseconds (ms) and 320 ms, as well as no upper limit to audio-visual delay tolerance.

关键词： human-centered computing Interaction paradigms Mixed / augmented reality human-centered computing Interaction paradigms Collaborative Interaction Applied computing Sound and music computing

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Jitsi360: Using 360 Images for Live Tours

Jitsi360: Using 360 Images for Live Tours

引用

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

作者： Nassani, Alaeddin Bai, Huidong Billinghurst, Mark Univ Auckland Auckland New Zealand

ISBN: (纸本)9781665484022

In this poster, we present a system for sharing immersive 360 images for live tours. While the sharing of prerecorded 360 video and images is becoming commonplace, there have been fewer systems presented that support live-sharing of 360 images. We customised a video conferencing platform to enable dozens of people to see the same 360 content together while having a live call. We describe our system and pilot user study results from using it for a virtual guided tour. Compared to sharing non 360 images on Zoom, our system was felt to be more immersive, enjoyable, and easy to use.

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

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Foldable Spaces: An Overt Redirection Approach for Natural Walking in Virtual Reality 29

Foldable Spaces: An Overt Redirection Approach for Natural W...

引用

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

作者： Han, Jihae Vande Moere, Andrew Simeone, Adalberto L. Katholieke Univ Leuven Leuven Belgium

ISBN: (纸本)9781665496179

Overt redirection is a class of virtual reality locomotion that uses perceptible transformations to enable the user to naturally walk through a virtual environment larger than the physical tracking space. In this research, we propose Foldable Spaces, a novel redirection approach based on the idea of dynamically 'folding' the geometry of the virtual environment to reveal new locations depending on the trajectory of the virtual reality user. Based on this approach, we developed three distinct techniques for overt redirection: (1) Horizontal, which folds and reveals layers of virtual space like the pages in a book;(2) Vertical, which rotates virtual space towards the user along a vertical axis;and (3) Accordion, which corrugates and flattens virtual space to bring faraway places closer to the user. In a within-subjects user study, we compared our proposed foldable techniques against each other along with a similarly situated redirection technique, Stop & Reset. Our findings show that Accordion was the most well-received by participants in terms of providing a smooth, continuous, and 'natural' experience of walking that does not involve shifts in orientation and provides an overarching view through the virtual environment.

关键词： human-centered computing Interaction Paradigms Virtual Reality

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In-Place Gestures Classification via Long-term Memory Augmented Network 21

In-Place Gestures Classification via Long-term Memory Augmen...

引用

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

作者： Zhao, Lizhi Lu, Xuequan Bao, Qianyue Wang, Meili Northwest A&F Univ Xianyang Peoples R China Deakin Univ Geelong Vic Australia Xidian Univ Xian Shaanxi Peoples R China Minist Agr Key Lab Agr Internet Things Yangling 712100 Shaanxi Peoples R China Shaanxi Key Lab Agr Informat Percept & Intelligen Yangling 712100 Shaanxi Peoples R China

ISBN: (数字)9781665453257

ISBN: (纸本)9781665453257

In-place gesture-based virtual locomotion techniques enable users to control their viewpoint and intuitively move in the 3D virtual environment. A key research problem is to accurately and quickly recognize in-place gestures, since they can trigger specific movements of virtual viewpoints and enhance user experience. However, to achieve real-time experience, only short-term sensor sequence data (up to about 300ms, 6 to 10 frames) can be taken as input, which actually affects the classification performance due to limited spatio-temporal information. In this paper, we propose a novel long-term memory augmented network for in-place gestures classification. It takes as input both short-term gesture sequence samples and their corresponding long-term sequence samples that provide extra relevant spatio-temporal information in the training phase. We store long-term sequence features with an external memory queue. In addition, we design a memory augmented loss to help cluster features of the same class and push apart features from different classes, thus enabling our memory queue to memorize more relevant long-term sequence features. In the inference phase, we input only short-term sequence samples to recall the stored features accordingly, and fuse them together to predict the gesture class. We create a large-scale in-place gestures dataset from 25 participants with 11 gestures. Our method achieves a promising accuracy of 95.1% with a latency of 192ms, and an accuracy of 97.3% with a latency of 312ms, and is demonstrated to be superior to recent in-place gesture classification techniques. User study also validates our approach. Our source code and dataset will be made available to the community.

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

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CARDS: Comprehensive AR Docent System 21

CARDS: Comprehensive AR Docent System

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

作者： Lee, Seung Un Yun, Jiyoung Kim, Dain Kim, Dooyoung Oh, Seo Young Yoon, Sang Ho Korea Adv Inst Sci & Technol Daejeon South Korea

ISBN: (数字)9781665453653

ISBN: (纸本)9781665453653

We present CARDS, a comprehensive Augmented Reality (AR) docent system to promote informative and engaging art experiences for exhibition visitors. While utilizing AR to add aesthetic visual effects has been actively explored, facilitating visitor engagement in educational exhibitions through AR has been relatively unexplored. Thus, the proposed system facilitates visitor engagement in informative exhibitions by providing AR-specific interaction features which include context-based sequential AR pins, position-based AR pin configuration, and orientation-based AR visual aids. With CARDS, we aim to enrich the onsite art experience of visitors by presenting information on exhibits in a systematic way, as well as to enhance visitor engagement by taking the bodily movements of visitors as interaction inputs. Furthermore, we suggest a design guideline for future educational AR guide applications using proxemic interaction methods.

关键词： human-centered computing Interaction design Interaction design process and methods User centered design

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The Effect of Spatial Audio on the Virtual Representation of Personal Space

The Effect of Spatial Audio on the Virtual Representation of...

引用

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

作者： Buck, Lauren Vargas, Mauricio Flores McDonnell, Rachel Trinity Coll Dublin Dublin Ireland

ISBN: (纸本)9781665484022

Auditory feedback is an important element in the perception of one's surroundings. Vocal intonation betrays emotion, step frequency determines urgency, and volume gives way to proximity. While it is widely understood that sound is an important element in game design and film, research on how auditory feedback affects interactions taking place in virtual reality experiences is lacking. In this work, we propose an experiment in which we will begin to uncover the effect of auditory feedback, particularly spatial audio, on the preservation of personal space in an immersive virtual environment. Users will be exposed to visual and auditory stimuli and asked to report both interpersonal and peripersonal space. Personal space is dynamically responsive to circumstance, and is notably malleable by the presence of auditory stimuli in the real world. Consequently, we expect personal space to dynamically change in the presence of auditory stimuli in an immersive virtual environment. There is no prior study into how auditory feedback affects the maintenance of this space in virtual reality.

关键词： human-centered computing Interaction design Epirical studies in interaction design human-centered computing Interaction paradigms Virtual reality

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RedirectedDoors: Redirection While Opening Doors in Virtual Reality 29

RedirectedDoors: Redirection While Opening Doors in Virtual ...

引用

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

作者： Hoshikawa, Yukai Fujita, Kazuyuki Takashima, Kazuki Fjeld, Morten Kitamura, Yoshifumi Tohoku Univ Sendai Miyagi Japan Chalmers Univ Technol Gothenburg Sweden Univ Bergen Bergen Norway

ISBN: (纸本)9781665496179

We propose RedirectedDoors, a novel space-efficient technique for redirection in VR focused on door-opening behavior. This technique manipulates the user's walking direction by rotating the entire virtual environment (VE) at a certain angular ratio of the door being opened. This ratio is called door rotation gain. At the same time, the virtual door's position is kept unmanipulated so that a realistic door-opening user experience can be ensured. We designed and implemented the rotational manipulation algorithm and two types of door-opening interfaces;with and without a doorknob-type passive haptic prop. We then conducted a user study (N = 12) to investigate redirection performance and user feedback as we examined three independent variables: door rotation gain, door-opening interface, and door-opening direction (push/pull). From the results, the estimated detection thresholds generally showed a higher space efficiency of redirection with our technique. Our results also showed that providing the haptic feedback led to a higher noticeability of redirection, but at the same time supported a higher subjective sense of realism and less discomfort. Following our results, we discuss which combinations of gain and door-opening direction can jointly provide lower noticeability and higher acceptability.

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

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Artana: Art and Knowledge about Anamorphosis

Artana: Art and Knowledge about Anamorphosis

引用

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

作者： Dubreuil, Shannon Grillet, Valentin Laurent, Nicolas Ling, Jennifer Minder, Eloise Saliou, Tristan Villafranca, Alice Chardonnet, Jean-Remy HESAM Univ Arts & Metiers Inst Technol LISPEN 2 Rue Thomas Dumorey F-71100 Chalon Sur Saone Saone & Loire France

ISBN: (纸本)9781665484022

For the 2022 IEEE VR 3DUI contest on the topic of "Arts, Science, Information and Knowledge - visualization and interactions", we present Artana, an immersive application proposing to explore anamorphosis in various interactive ways. Through an unexpected experience, the user is transported to a museum in which he/she will have access to the history of anamorphosis before being able to experience seven examples of them. A teleportation and a spinning wheel interaction techniques were implemented in Artana to ease interaction without altering the experience.

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

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Blending On-Body and Mid-Air Interaction in Virtual Reality 21

Blending On-Body and Mid-Air Interaction in Virtual Reality

引用

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

作者： Yu, Difeng Zhou, Qiushi Dingler, Tilman Velloso, Eduardo Goncalves, Jorge Univ Melbourne Melbourne Vic Australia

ISBN: (数字)9781665453257

ISBN: (纸本)9781665453257

On-body interfaces, which leverage the human body's surface as an input or output platform, can provide new opportunities for designing VR interaction. However, it remains unclear how on-body interfaces can best support current VR systems that mainly rely on mid-air interaction. We propose BodyOn, a collection of six design patterns that leverage combined on-body and mid-air interfaces to achieve more effective 3D interaction. Specifically, a user may use thumb-on-finger gestures, finger-on-arm gestures, or on-body displays with mid-air input, including hand movement and orientation, to complete an interaction task. To test our design concepts, we implemented example interaction techniques based on BodyOn that can assist users in various 3D interaction tasks. We further conducted an expert evaluation using the techniques as probes to elicit immediate design issues that emerge from the novel combination of on-body and midair interaction. We provide insights that can inspire and inform the design of future 3D user interfaces.

关键词： human-centered computing human Computer Interaction (HCI) Interaction Paradigms Virtual Reality

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3Dify: Extruding Common 2D Charts with Timeseries Data

3Dify: Extruding Common 2D Charts with Timeseries Data

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

作者： Brath, Richard Matusiak, Martin Uncharted Software Inc Toronto ON Canada

ISBN: (纸本)9781665484022

3D charts are not common in financial services. We review chart use in practice. We create 3D financial visualizations starting with 2D charts used extensively in financial services, then extend into the third dimension with timeseries data. We embed the 2D view into the the 3D scene;constrain interaction and add depth cues to facilitate comprehension. Usage and extensions indicate success.

关键词： human-centered computing Visualization Visualization application domains Information visualization human-centered computing Visualization Visualization design and evaluation methods

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