Force Push: Exploring Expressive Gesture-to-Force Mappings for Remote Object Manipulation in Virtual Reality

Q1 Computer Science Frontiers in ICT Pub Date : 2018-09-28 DOI:10.3389/fict.2018.00025
Run Yu, D. Bowman
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引用次数: 10

Abstract

This paper presents Force Push, a novel gesture-based interaction technique for remote object manipulation in virtual reality (VR). Inspired by the design of magic powers in popular culture, Force Push uses intuitive hand gestures to drive physics-based movement of the object. Using a novel algorithm that dynamically maps rich features of hand gestures to the properties of the physics simulation, both coarse-grained ballistic movements and fine-grained refinement movements can be achieved seamlessly and naturally. An initial user study of a limited translation task showed that, although its gesture-to-force mapping is inherently harder to control than traditional position-to-position mappings, Force Push is usable even for extremely difficult tasks. Direct position-to-position control outperformed Force Push when the initial distance between the object and the target was close relative to the required accuracy; however, the gesture-based method began to show promising results when they were far away from each other. As for subjective user experience, Force Push was perceived as more natural and fun to use, even though its controllability and accuracy were thought to be inferior to direct control. This paper expands the design space of object manipulation beyond mimicking reality, and provides hints on using magical gestures and physics-based techniques for higher usability and hedonic qualities in user experience.
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力推:探索虚拟现实中远程对象操作的表达手势到力映射
提出了一种新的基于手势的虚拟现实(VR)远程对象操作交互技术——力推(Force Push)。受流行文化中魔法设计的启发,Force Push使用直观的手势来驱动物体的物理运动。使用一种新颖的算法,将手势的丰富特征动态映射到物理模拟的属性,可以无缝地实现粗粒度的弹道运动和细粒度的细化运动。一项有限翻译任务的初始用户研究表明,尽管它的手势到力映射比传统的位置到位置映射更难以控制,但Force Push甚至可以用于极其困难的任务。当目标与目标之间的初始距离接近所需精度时,直接位置对位置控制优于力推;然而,当他们彼此距离较远时,基于手势的方法开始显示出有希望的结果。至于主观用户体验,人们认为Force Push使用起来更自然、更有趣,尽管它的可控性和准确性不如直接控制。本文扩展了对象操作的设计空间,超越了模拟现实,并提供了使用神奇手势和基于物理的技术来提高用户体验的可用性和享乐品质的提示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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Frontiers in ICT
Frontiers in ICT Computer Science-Computer Networks and Communications
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