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Visual-Auditory Redirection: Multimodal Integration of Incongruent Visual and Auditory Cues for Redirected Walking 19

Visual-Auditory Redirection: Multimodal Integration of Incon...

引用

19th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Gao, Peizhong Matsumoto, Keigo Narumi, Takuji Hirose, Michitaka Univ Tokyo Tokyo Japan JSPS Tokyo Japan JST PRESTO Kawaguchi Saitama Japan

ISBN: (纸本)9781728185088

In this paper, we present a study of redirected walking (RDW) that shifts the positional relationship between visual and auditory cues during curvature manipulation. It has been shown that, when presented with incongruent visual and auditory spatial cues during a localization task, human observers integrate that information based on each cue's relative reliability, which determines their final perception of the target object's location. This multimodal integration model is known as maximum likelihood estimation (MLE). By altering the visual location of objects that users perceive in virtual reality (VR) through auditory cues during redirection manipulation, we expect fewer users to notice the manipulation, which helps increase the usable curvature gain. Most existing studies on MLE in multimodal integration have used random-dot stereograms as visual cues under stable motion states. In the present study, we first investigated whether this model holds while walking in VR environment. Our results indicate that in a walking state, users' perceptions of the target object's location shift toward auditory cue as the reliability of vision decreases, in keeping with the trend shown in previous studies on MLE. Based on this result, we then investigated the detection threshold of curvature gains during redirection manipulation under a condition with congruent visual-auditory cues as well as a condition in which users' location perceptions of the target object are considered to be affected by the incongruent auditory cue. We found that the detection threshold of curvature gains was higher with incongruent visual-auditory cues than with congruent cues. These results show that incongruent multimodal cues in VR may have a promising application in the area of redirected walking

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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HapticSphere: Physical Support To Enable Precision Touch Interaction in Mobile Mixed-Reality 26

HapticSphere: Physical Support To Enable Precision Touch Int...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Wang, Chiu-Hsuan Hsieh, Chen-Yuan Yu, Neng-Hao Bianchi, Andrea Chan, Liwei NTUST Dept Ind Design Taipei Taiwan Korea Adv Inst Sci & Technol Dept Ind Design Seoul South Korea Natl Chiao Tung Univ Dept Comp Sci Taipei Taiwan

ISBN: (纸本)9781728113777

This work presents I lapticSphere, a wearable spherical surface enabled by bridging a finger and the head-mounted display (HMD) with a passive string. Users perceive a physical support on a finger attached to a string, when extending their arm and reaching out to the string's maximum extension. This physical support assists users in precise touch interaction in the context of stationary and walking virtual or mixed-reality experiences. We propose three methods of attachment of the haptic string (directly on the head or on the body), and illustrate a novel single-step calibration algorithm that supports these configurations by estimating a grand haptic sphere, once a head-coordinated touch interaction is established. Two user studies were conducted to validate our approach and to compare the touch performance with physical support in sitting and walking conditions in the context of mobile mixed-reality scenarios. The results show that, in the walking condition, touch interaction with physical support significantly outperformed the visual-only condition.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Speech-Driven Facial Animation by LSTM-RNN for Communication Use 26

Speech-Driven Facial Animation by LSTM-RNN for Communication...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Nishimura, Ryosuke Sakata, Nobuchika Tominaga, Tomu Hijikata, Yoshinori Harada, Kensuke Kiyokawa, Kiyoshi Osaka Univ Suita Osaka Japan Nara Inst Sci & Technol Ikoma Japan Kwansei Gakuin Univ Nishinomiya Hyogo Japan

ISBN: (纸本)9781728113777

The goal of this research is developing a system that a rich facial animation can be used in communication is generated from only speech. Generally, a source of the generating facial animation is a camera. Using cameras as an input source, it causes limitations of the angle of view of the camera or problems that cannot be aware of the human face, depending on the orientation of the face. Therefore, it is reasonable for developing a system for generating a facial animation using only voice. In this study, we generate facial expressions from only speech using LSTM-RNN. Comparing 3 patterns of speech analysis data, we showed that the proposed method using A -weighting is effective for facial expression estimation.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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VR as a Content Creation Tool for Movie Previsualisation 26

VR as a Content Creation Tool for Movie Previsualisation

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Galvane, Quentin Lin, I-Sheng Argelaguet, Fernando Li, Tsai-Yen Christie, Marc INRIA Rennes Rennes France Natl ChengChi Univ Taipei Taiwan INRIA Rennes IRISA Rennes France

ISBN: (纸本)9781728113777

Creatives in animation and film productions have forever been exploring the use of new means to prototype their visual sequences before realizing them, by relying on hand-drawn storyboards, physical mockups or more recently 3D modelling and animation tools. However these 3D tools are designed in mind for dedicated animators rather than creatives such as film directors or directors of photography and remain complex to control and master. In this paper we propose a VR authoring system which provides intuitive ways of crafting visual sequences, both for expert animators and expert creatives in the animation and film industry. The proposed system is designed to reflect the traditional process through (i) a storyboarding mode that enables rapid creation of annotated still images, (ii) a previsualisation mode that enables the animation of the characters, objects and cameras, and (iii) a technical mode that enables the placement and animation of complex camera rigs ( such as cameras cranes) and light rigs. Our methodology strongly relies on the benefits of VR manipulations to re-think how content creation can be performed in this specific context, typically how to animate contents in space and time. As a result, the proposed system is complimentary to existing tools, and provides a seamless back-and -forth process between all stages of previsualisation. We evaluated the tool with professional users to gather experts' perspectives on the specific benefits of VR in 3D content creation.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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CubeVR: Digital Affordances for Architecture Undergraduate Education using Virtual Reality 26

CubeVR: Digital Affordances for Architecture Undergraduate E...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Raikwar, Aditya D'Souza, Newton Rogers, Ciana Kress, Mathew Williams, Adam Rishe, Naphtali D. Ortega, Francisco R. Colorado State Univ Ft Collins CO 80523 USA Florida Int Univ Miami FL 33199 USA

ISBN: (纸本)9781728113777

CubeVR incorporates the traditional studio-based learning in architecture with virtual reality (VR) and in doing so it enables features that are not available or difficult to achieve in the real-world. CubeVR allows students and instructors to move from the existing studio to a virtual environment, allowing for a more impactful learning experience. This paper presents our current state of the CubeVR prototype, informal impressions of users, and the use of different affordances in the virtual world.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Collaborative Data Analytics Using Virtual Reality 26

Collaborative Data Analytics Using Virtual Reality

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Huyen Nguyen Ward, Benjamin Engelke, Ulrich Thomas, Bruce Bednarz, Tomasz Univ New South Wales UNSW Art & Design Sydney NSW Australia Murdoch Univ Murdoch WA Australia CSIRO Data61 Canberra ACT Australia Univ South Australia Mawson Lakes SA Australia

ISBN: (纸本)9781728113777

Immersive analytics allows a large amount of data and complex structures to be concurrently investigated. We propose a collaborative analytics system that benefits from new advances in immersive technologies for collaborators working in the early stages of data exploration. We implemented a combination of Star Coordinates and Star Plot visualisation techniques to support the visualisation of multidimensional data and the encoding of datasets using simple and compact visual representations. To support data analytics tasks, we propose tools and interaction techniques for users to build decision trees for visualising and analysing data in a top -down method.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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VR Ski Coach: Indoor Ski Training System Visualizing Difference from Leading Skier 26

VR Ski Coach: Indoor Ski Training System Visualizing Differe...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Nozawa, Takayuki Wu, Erwin Koike, Hideki Tokyo Inst Technol Tokyo Japan

ISBN: (纸本)9781728113777

The training of skiing is difficult because of environmental requirements and teaching methods. Therefore, we propose a virtual reality ski training system using an indoor ski simulator. The system is based on a simple indoor ski simulator with two trackers to capture the motion of skis. Users can control the skis in the virtual ski slope we provided and train their skills with a replay of a professional skier. The training system consists of three modules: a coach replay system for reviewing pro-skiers's motion;a time control system that can be used to watch the detailed motion of both the coach and the user;and a visualization of the angle of the skis to compare the difference of motions between the users and the coach.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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RetroTracker: Upgrading Existing Virtual Reality Tracking Systems 26

RetroTracker: Upgrading Existing Virtual Reality Tracking Sy...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Krzanich, Kylee M. Whitmire, Eric Stengel, Michael Kass, Michael Aksit, Kaan Luebke, David NVIDIA Santa Clara CA 95051 USA Univ Washington Seattle WA 98195 USA

ISBN: (纸本)9781728113777

Virtual reality systems often make use of spatially tracked handheld props in the form of controllers or specialized objects to add realism and interaction. Tracking these objects today relies on the use of expensive, bulky, and power-consuming trackers that must be attached to an object. We propose a passive tracking technique that works with existing low-cost, off-the -shelf optical tracking components and is capable of turning any object into a tracked virtual reality prop. Our method utilizes paper-thin retro-reflective markers that can be placed in any free-form on everyday objects. The proof-of-concept prototype acts as a simple add-on for an existing tracking system and requires only a minimal amount of compute overhead. We demonstrate that our method allows bringing physical real-world objects to virtual worlds with ease, and provides an object identification technique using patterned retro-reflective markers.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Immersive EEG: Evaluating Electroencephalography in Virtual Reality 26

Immersive EEG: Evaluating Electroencephalography in Virtual ...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Tauscher, Jan-Philipp Schottky, Fabian Wolf Grogorick, Steve Bittner, Paul Maximilian Mustafa, Maryam Magnor, Marcus TU Braunschweig Braunschweig Germany ITU Lahore Lahore Pakistan

ISBN: (纸本)9781728113777

We investigate the feasibility of combining off-the-shelf virtual reality headsets and electroencephalography. EEG is a highly sensitive tool and subject to strong distortions when exerting physical force like mounting a VR headset on top of it that twists sensors and cables. Our study compares the signal quality of EEG in VR against immersive dome environments and traditional displays using an oddball paradigm experimental design. Furthermore, we compare the signal quality of EEG when combined with a commodity VR headset without modification against a modified version that reduces physical strain on the EEG headset. Our results indicate, that it is possible to combine EEG and VR even without modification under certain conditions. VR headset customisation improves signal quality results. Additionally, display latency of the different modalities is visible on a neurological level.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Comparing Different Augmented Reality Support Applications for Cooperative Repair of an Industrial Robot 17

Comparing Different Augmented Reality Support Applications f...

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17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Aschenbrenner, Doris Rojkov, Michael Leutert, Florian Verlinden, Jouke Lukosch, Stephan Latoschik, Marc Erich Schilling, Klaus Delft Univ Technol IDE Delft Netherlands Univ Wurzburg HCI Grp Wurzburg Germany Zentrum Telemat Wurzburg Germany Delft Univ Technol TBM Delft Netherlands

ISBN: (纸本)9781538675922

Digitization and the growing capabilities of data networks enable companies to perform tasks via remote support, which previously required service personnel to travel. But which mixed reality method leads to better results regarding human factors, grounding and performance criteria? This paper reports on a collaborative user study, in which a local worker is guided by a remote expert with the help of different augmented reality methods, specifically see-through HMD, spatial projection, and video-mixing tablet. The task to perform is the exchange of a controller in a switch cabinet of an industrial robot, a task rather typical for failure detection within the field. Our study was conducted in collaboration with a technician school, where 50 technician apprentices participated in our study. Our results show clear advantages of using augmented reality (AR) versus traditional conditions (audio, video, screenshot) to enable remote support. It further gives significant indications for using a projection based AR method.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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