Effects of Switchable DOF for Mid-Air Manipulation in Immersive Virtual Environments

Kim, Myoung Gon; Han, Jung Yeol

doi:10.1080/10447318.2018.1514163

Cited by 17 publications

(2 citation statements)

References 8 publications

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“…For example, prior research proposed the Rotate'N Translate (RNT) algorithm to support 2D input modalities for 3D object transformations on 2D screens (Goh et al, 2019). Scholars explored two basic virtual object translation modes, DoF separation and DoF integration (Alibali, 2005;Bonnici et al, 2019), and they are commonly used in mouse-based CAD (Kim and Han, 2019). Moreover, previous studies presented that DoF separation, rather than DoF integration, can be employed as a translation mode to improve task performance (Alibali, 2005;Lupinetti et al, 2019), which is the reason why scholars developed various interactive approaches based on DoF separation (Hancock et al, 2009;Reisman et al, 2009;Bonnici et al, 2019).…”

Section: Translation Modes and Interface Types In Cadmentioning

confidence: 99%

Evaluating the feeling of control in virtual object translation on 2D interfaces

Sun

Huang

et al. 2023

AIEDAM

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Computer-aided design (CAD) plays an essential role in creative idea generation on 2D screens during the design process. In most CAD scenarios, virtual object translation is an essential operation, and it is commonly used when designers simulate their innovative solutions. The degrees of freedom (DoF) of virtual object translation modes have been found to directly impact users’ task performance and psychological aspects in simulated environments. Little is known in the existing literature about the sense of agency (SoA), which is a critical psychological aspect emphasizing the feeling of control, in translation modes on 2D screens during the design process. Hence, this study aims to assess users’ SoA in virtual object translation modes on mouse-based, touch-based, and handheld augmented reality (AR) interfaces through subjective and objective measures, such as self-report, task performance, and electroencephalogram (EEG) data. Based on our findings in this study, users perceived a greater feeling of control in 1DoF translation mode, which may help them come up with more creative ideas, than in 3DoF translation mode in the design process; additionally, the handheld AR interface offers less control feel, which may have a negative impact on design quality and creativity, as compared with mouse- and touch-based interfaces. This research contributes to the current literature by analyzing the association between virtual object translation modes and SoA, as well as the relationship between different 2D interfaces and SoA in CAD. As a result of these findings, we propose several design considerations for virtual object translation on 2D screens, which may enable designers to perceive a desirable feeling of control during the design process.

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Section: Translation Modes and Interface Types In Cadmentioning

confidence: 99%

Evaluating the feeling of control in virtual object translation on 2D interfaces

Sun

Huang

et al. 2023

AIEDAM

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show abstract

“…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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Usability of visualizing position and orientation deviations for manual precise manipulation of objects in augmented reality

Zhang,

He,

Billinghurst

et al. 2024

Virtual Reality

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Manual precise manipulation of objects is an essential skill in everyday life, and Augmented Reality (AR) is increasingly being used to support such operations. In this study, we investigate whether detailed visualizations of position and orientation deviations are helpful for AR-assisted manual precise manipulation of objects. We developed three AR instructions with different visualizations of deviations: the logical deviation baseline instruction, the precise numerical deviations-based instruction, and the intuitive color-mapped deviations-based instruction. All three instructions visualized the required directions for manipulation and the logical values of whether the object met the accuracy requirements. Additionally, the latter two instructions provided detailed visualizations of deviations through numerical text and color-mapping respectively. A user study was conducted with 18 participants to compare the three AR instructions. The results showed that there were no significant differences found in speed, accuracy, perceived ease-of-use, and perceived workload between the three AR instructions. We found that the visualizations of the required directions for manipulation and the logical values of whether the object met the accuracy requirements were sufficient to guide manual precise manipulation. The detailed visualizations of the real-time deviations could not improve the speed and accuracy of manual precise manipulation, and although they could improve the perceived ease-of-use and user experience, the effects were not significant. Based on the results, several recommendations were provided for designing AR instructions to support precise manual manipulation.

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Effects of Switchable DOF for Mid-Air Manipulation in Immersive Virtual Environments

Cited by 17 publications

References 8 publications

Evaluating the feeling of control in virtual object translation on 2D interfaces

Evaluating the feeling of control in virtual object translation on 2D interfaces

Post-Processing Framework for Enhancing Liquid Surfaces in VFX Pipeline

Usability of visualizing position and orientation deviations for manual precise manipulation of objects in augmented reality

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