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首页> 外文会议>EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems >Discriminability of Real and Virtual Surfaces with Triangular Gratings
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Discriminability of Real and Virtual Surfaces with Triangular Gratings

机译：具有三角形光栅的真实和虚拟表面的可怜

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摘要

Human sensitivity to height differences in textured surfaces is on the order of microns. Research on human texture perception requires texture samples with precisely controlled micro-geometry. This can be achieved with an electrical discharge machining (EDM) procedure, but the process is time consuming and labor intensive. An alternative approach is to simulate textured surfaces with a haptic interface with high position resolution. The present study measured the amplitude discrimination thresholds for surfaces with triangular gratings using real EDM textured samples and virtual textures rendered with a high-precision force-feedback device called the ministick. The results indicated that the just noticeable differences for real and virtual textures, respectively 3.69±0.65 and 4.94±0.96 μm, were of similar magnitude. Therefore, we propose that this device is suitable for the study human perception of surface micro-geometry with features on the scale of human perceptual resolution.
机译：纹理表面的高度差异的人类敏感性是蒙上的序列。人类纹理感知的研究需要具有精确控制的微观几何形状的纹理样本。这可以通过电气放电加工（EDM）程序来实现，但该过程是耗时和劳动密集型。另一种方法是使用具有高位置分辨率的触觉接口模拟纹理表面。本研究测量了使用具有名为Ministick的高精度力反馈设备的真实EDM纹理样本和虚拟纹理的三角形光栅的表面的幅度区分阈值。结果表明，实际和虚拟纹理的明显差异，分别为3.69±0.65和4.94±0.96μm，具有相似的幅度。因此，我们提出该设备适用于对人类微观几何学的研究人类的感知，具有人类感知分辨率的规模。

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