Frequency modulation based vibrotactile feedback for 1-D and 2-D pointing tasks in virtual reality
Frequency modulation based vibrotactile feedback for 1-D and 2-D pointing tasks in virtual reality
复制标题
基于频率调制的振动触觉反馈，用于虚拟现实中的一维和二维指向任务
DOI：
10.1109/roman.2009.5326207
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Fontaine
中科院分区：
文献类型：
--
作者：
H. Pham;R. Chellali;M. Ammi;J. Fontaine
本研究调查了人们如何使用振动触觉设备实现指向任务。比较使用视觉反馈时，做同样的任务。受试者被要求在LCD屏幕的视觉信息的引导下尽可能快和精确地到达目标;以及由我们开发的特定手套产生的两种类型的触觉信息。第一种类型的触觉信息是恒定的振动刺激，第二种是基于频率调制的振动。对于每种模式，进行两个实验。第一个是一维的：到达一个位于水平左右线上的目标。第二个是二维的：到达目标是在一个水平面上。结果表明，触觉指向任务符合经典的费茨定律。此外，结果表明，基于频率调制的振动具有更好的弹道长度的性能，但不是在执行时间。
This study investigated how people achieve pointing tasks using a vibrotactile device. A comparison using visual feedback when doing the same task is presented. Subjects were asked to reach a target as fast and as precise as possible guided by visual information from an LCD screen; and two types of tactile information generated by a specific glove we developed. The first type of tactile information was a constant vibrating stimulation and the second one was a frequency modulation based vibration. For each modality, two experiments were performed. The first one was in 1-D: reaching a target situated on a horizontal left-right line. The second one was in 2-D: reaching a target is in a horizontal plane. The results we obtained showed that tactile based pointing task obey to the classical the Fitts' law. Furthermore, results showed that frequency modulation based vibrating gave better performance in trajectory length, but not in time of execution.