Visual Manipulation for Underwater Drag Force Perception in Immersive Virtual Environments

Kang, HyeongYeop; Lee, Geonsun; Han, JunaHyun

doi:10.1109/vr.2019.8798300

Cited by 13 publications

(9 citation statements)

References 36 publications

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“…Along these lines, some works aimed to reproduce the resistance force through visual inputs. Kang et al [27] and Lee et al [28] improved the visual effect of a simulation by varying the mapping ratio of displayed to real-world motion [29]. Other researchers made use of tactile stimuli.…”

Section: B Simulating Underwater Environment Virtuallymentioning

confidence: 99%

“…We consider that introducing more exaggerated temperature changes to induce more people to perceive the temperature change could improve it. In a study that induced people to perceive the drag force of water by visual manipulation [27], it was found that the virtual drag force be presented 4.05 times larger than the model based on physical phenomena. This is because the drag force was presented only to a limited part of the body and because it exhibited less modality (visual, audio, and virtual force).…”

Section: F Limitation and Future Workmentioning

confidence: 99%

“…In this study, the coldness was presented only to the fingertip, and it presented less modality (visual, audio, and coldness). Therefore, as in [27], an exaggerated temperature change presentation may be effective.…”

Section: F Limitation and Future Workmentioning

confidence: 99%

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Coldness Presentation Depending on Motion to Enhance the Sense of Presence in a Virtual Underwater Experience

2022

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In virtual reality (VR), there is consumer demand for underwater world experiences. To address this demand, previous studies have presented coldness to enhance the sense of presence in virtual underwater experiences. We considered that we could further improve the sense of presence and the experiential quality of underwater VR simulations by making the coldness presentation more realistic. We also considered that methods of presenting coldness continuously would have a wider application range. In this research, with reference to actual water behavior, we propose a method that presents coldness depending on whether it is moving. We conducted an experiment comparing the sense of presence between the steadystate temperatures of 24.9 ± 1.9 • C / 27.8 ± 2.7 • C and the proposed method, the temperature of which moves between the aforementioned temperatures as the user moves and stops. The results show that the proposed method yielded higher scores than the higher steady-state temperature in "closeness of overall sensation" and "closeness of thermal sensation". For the lower steady-state temperature, the proposed method achieved the same sense of presence improvement while removing less heat. This extends the experiential duration. Meanwhile, for those who noticed the temperature change, the proposed method yielded higher scores than the lower steady-state temperature in "realness" and "closeness of thermal sensation". To further improve effectiveness of the proposed method, it is important to not only change the temperature but also to notice the temperature change. This method is suitable for several virtual underwater applications, such as education and training.

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Section: B Simulating Underwater Environment Virtuallymentioning

confidence: 99%

Section: F Limitation and Future Workmentioning

confidence: 99%

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Coldness Presentation Depending on Motion to Enhance the Sense of Presence in a Virtual Underwater Experience

2022

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“…Ban et al [44] proposed hit-stop visual feedback to provide visual kinesthetic feedback for impact sensations, i.e., pausing movement or displaying a slow-motion animation at the moment of impact. The illusion of perceiving the physical constraint of water could be induced by making the movements of their avatar limbs or head slower than their real ones [45], [46].…”

Section: Adding Kinesthetic Feedback In Vrmentioning

confidence: 99%

Kine-Appendage: Enhancing Freehand VR Interaction through Transformations of Virtual Appendages

Bai¹,

Tian²,

Zhao³

et al. 2021

Preprint

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“…I N the field of visual effects (VFX), physically based simulations are used to efficiently express various materials such as liquid, deformable bodies, smoke, and rigid bodies [1]. Recently, with the development of VR (Virtual Reality), physically based simulation techniques are used to realistically express VR environments [2]- [4]. In the industrial field, a variety of specialized software is used to create VFX, but it is difficult for users to add new functions not provided by the software or apply post-processing to the results [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Post-Processing Framework for Enhancing Liquid Surfaces in VFX Pipeline

Kim

Im²,

jung

2021

IEEE Access

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Physically-based simulation is being expanded to simulate various materials such as deformable bodies, sand, and lava as well as liquid, and has been widely used as plug-in and software in actual related industries. Contrary to this trend, however, most of the simulation software products are built as an in-house solution, making it difficult for users to add new features not provided by the software. In this paper, we propose a post-processing framework that can improve the visual quality of liquid surfaces by receiving only the positions of liquid particles created in the existing simulation tools. Our framework includes the following methods: 1) analyzing liquid flow from particle position, 2) sampling technique for creating liquid sheets. Our framework improves the detail of liquid surfaces by temporarily adding new liquid particles through sampling of particles from existing simulation techniques. Our technique does not depend on any particular simulation tool. Experiments with various scenarios have also shown that liquid sheet detail, which was difficult to express in traditional software, has been improved, and problems such as break-up fluid surfaces and noisy surfaces have been mitigated. In addition, our research is a post-processing framework that uses only particle position as input data, making it easy to integrate with existing simulation tools that provide particle position.

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Visual Manipulation for Underwater Drag Force Perception in Immersive Virtual Environments

Cited by 13 publications

References 36 publications

Coldness Presentation Depending on Motion to Enhance the Sense of Presence in a Virtual Underwater Experience

Coldness Presentation Depending on Motion to Enhance the Sense of Presence in a Virtual Underwater Experience

Kine-Appendage: Enhancing Freehand VR Interaction through Transformations of Virtual Appendages

Post-Processing Framework for Enhancing Liquid Surfaces in VFX Pipeline

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