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首页> 外文会议>International Workshop on Haptic and Audio Interaction Design(HAID 2007); 20071129-30; Seoul(KR) >Haptic and Sound Grid for Enhanced Positioning in a 3-D Virtual Environment
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Haptic and Sound Grid for Enhanced Positioning in a 3-D Virtual Environment

机译：触觉和声音网格，可增强3-D虚拟环境中的位置

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摘要

As images are projected onto the flat retina when identifying objects scattered in space, there may be considerable ambiguity in depth (i.e. z-direction) perception. Therefore, position information can be distorted, especially along the z-axis. In this paper, virtual grids using haptic and auditory feedback are proposed to complement ambiguous visual depth cues. This study experimentally investigates the influence of virtual grids on position identification in a 3-D workspace. A haptic grid is generated using the PHANTOM~(R) Omni~(TM) and a sound grid is generated by changing the frequency characteristics of the sound source based on the hand movement of the operator. Both grids take the form of virtual planes placed at regular intervals of 10mm through three axes (i.e. x, y, and z). The haptic and sound grids are conveyed to subjects separately or simultaneously according to test conditions. In cases of bimodal presentation, the grids are displayed with cross-modal synchrony. The statistically significant results indicate that the presence of the grid in space increased the average values of precision. In particular, errors in the z-axis decreased by more than 50% (F=19.82, p < 0.01).
机译：当在识别散布在空间中的物体时将图像投影到平坦的视网膜上时，在深度（即z方向）感知上可能会存在很大的歧义。因此，位置信息可能会失真，尤其是沿z轴方向。在本文中，提出了利用触觉和听觉反馈的虚拟网格，以补充模糊的视觉深度提示。这项研究通过实验研究了虚拟网格对3-D工作区中位置识别的影响。使用PHANTOM_Omni_TM生成触觉网格，并通过基于操作员的手部移动来改变声源的频率特性来生成声格。两个网格均采用通过三个轴（即x，y和z）以10mm的规则间隔放置的虚拟平面的形式。根据测试条件，将触觉网格和声音网格分别或同时传送给对象。在双峰表示的情况下，网格以跨峰同步显示。具有统计意义的结果表明，空间中网格的存在增加了精度的平均值。尤其是z轴的误差减少了50％以上（F = 19.82，p <0.01）。

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