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Augmenting Perceived Softness of Haptic Proxy Objects Through Transient Vibration and Visuo-Haptic Illusion in Virtual Reality.
IEEE Transactions on Visualization and Computer Graphics ( IF 4.7 ) Pub Date : 2021-10-26 , DOI: 10.1109/tvcg.2020.3002245
Inrak Choi , Yiwei Zhao , Eric J. Gonzalez , Sean Follmer

In this article, we investigate the effects of active transient vibration and visuo-haptic illusion to augment the perceived softness of haptic proxy objects. We introduce a system combining active transient vibration at the fingertip with visuo-haptic illusions. In our hand-held device, a voice coil actuator transmits active transient vibrations to the index fingertip, while a force sensor measures the force applied on passive proxy objects to create visuo-haptic illusions in virtual reality. We conducted three user studies to understand both the vibrotactile effect and its combined effect with visuo-haptic illusions. A preliminary study confirmed that active transient vibrations can intuitively alter the perceived softness of a proxy object. Our first study demonstrated that those same active transient vibrations can generate different perceptions of softness depending on the material of the proxy object used. In our second study, we evaluated the combination of active transient vibration and visuo-haptic illusion, and found that both significantly influence perceived softness, with with the visuo-haptic effect being dominant. Our third study further investigated the vibrotactile effect while controlling for the visuo-haptic illusion. The combination of these two methods allows users to effectively perceive various levels of softness when interacting with haptic proxy objects.

中文翻译:

通过虚拟现实中的瞬态振动和视觉触觉错觉增强触觉代理对象的感知柔软度。

在本文中,我们研究了主动瞬态振动和视觉触觉错觉的影响,以增强触觉代理对象的感知柔软度。我们介绍了一种将指尖的主动瞬态振动与视觉触觉错觉相结合的系统。在我们的手持设备中,音圈致动器将主动瞬态振动传输到食指尖,而力传感器测量施加在被动代理对象上的力,以在虚拟现实中产生视觉触觉错觉。我们进行了三项用户研究,以了解振动触觉效应及其与视觉触觉错觉的组合效应。一项初步研究证实,主动瞬态振动可以直观地改变代理对象的感知柔软度。我们的第一项研究表明,这些相同的主动瞬态振动可以根据所使用的代理对象的材料产生不同的柔软感。在我们的第二项研究中,我们评估了主动瞬态振动和视觉触觉错觉的组合,发现两者都显着影响感知柔软度,其中视觉触觉效应占主导地位。我们的第三项研究进一步研究了振动触觉效应,同时控制了视觉触觉错觉。这两种方法的结合使用户在与触觉代理对象交互时可以有效地感知各种程度的柔软度。并发现两者都显着影响感知柔软度,其中视觉触觉效果占主导地位。我们的第三项研究进一步研究了振动触觉效应,同时控制了视觉触觉错觉。这两种方法的结合使用户在与触觉代理对象交互时可以有效地感知各种程度的柔软度。并发现两者都显着影响感知柔软度,其中视觉触觉效果占主导地位。我们的第三项研究进一步研究了振动触觉效应,同时控制了视觉触觉错觉。这两种方法的结合使用户在与触觉代理对象交互时可以有效地感知各种程度的柔软度。
更新日期:2020-06-15
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