Edge angle perception precision of active and passive touches for haptic VR using dot-matrix display
Edge angle perception precision of active and passive touches for haptic VR using dot-matrix display
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使用点阵显示的触觉 VR 主动和被动触摸的边缘角度感知精度
DOI：
10.1299/jamdsm.2019jamdsm0051
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
M. Ohka
中科院分区：
文献类型：
--
作者：
Hiraku Komura;M. Ohka
在触觉虚拟现实（VR）中，存在两个重要的挑战：一个是难以用触觉设备再现表面感觉，另一个是用于显示的呈现方法。我们开发了一个触觉鼠标使用手掌介绍前一个挑战，以解决这个问题，“哪一个触觉感知是上级的纹理识别，主动或被动触摸？”在心理物理学实验中，两个点图案的斜边连续呈现为简单的纹理，人类受试者比较它们以确定哪个更大。我们使用恒定刺激法计算的边缘角度的差异阈值来评估感知的精确性。实验结果表明，在低边缘运动速度（45和90 mm/s）下的感知精度高于在高边缘运动速度（130和170 mm/s）下的感知精度，并且主动和被动触摸之间的边缘角度感知精度没有显著差异。前一个发现似乎是由机械感受单位处理不平坦表面的能力引起的。后一个发现是由于从运动皮层提供的运动信号的传出复制的机制对纹理识别没有显着的影响。由物体运动引起的触觉图像的退化可能通过中枢神经系统的信息处理来补偿，从而在没有传出复制的帮助下保持稳定的触觉图像。这项工作有助于开发触觉设备，为视障人士提供触觉地图。
In haptic virtual reality (VR), there are two important challenges: one is the difficulty of reproducing a surface feeling with haptic devices, and the other is the presentation method used for the display. We developed a tactile mouse using palm presentation for the former challenge to tackle the issue, “which tactile perception is superior for texture recognition, active or passive touch?” In a psychophysical experiment, two oblique edges of dot-patterns are presented consecutively as simple textures, and human subjects compare them to determine which is larger. We evaluated the precision of perception using the difference threshold of the edge angles calculated by the constant stimuli method. Experimental results show that the perception precision at low edge movement speeds (45 and 90 mm/s) was higher than that at high speeds (130 and 170 mm/s), and moreover, that there was no significant difference in precision of the edge angle perception between active and passive touches. The former finding seems to be caused by how well the mechanoreceptive unit handles uneven surfaces. The latter finding is due to the mechanism of the efference copy of a motor signal provided from the motor cortex not having a significant influence on texture recognition. The tactile image deterioration induced by the object movement might be compensated for with information processing in the central nervous system, which keeps stable tactile image without help from the efference copy. This work contributes to developing the haptic device which provides visually impaired persons with the tactile map.
使用触觉显示器处理虚拟对象
DOI：
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发表时间：
2005
期刊：
影响因子：
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作者：
M. Ohka;J. Kato;T. Fujiwara and Y. Mitsuya
通讯作者：
T. Fujiwara and Y. Mitsuya
配备显示板刺激针的触觉鼠标的图形和纹理呈现功能
DOI：
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发表时间：
2007
期刊：
Robotica Vol. 25
影响因子：
--
作者：
M. Ohka;H. Koga;Y. Mouri;T. Sugiura;T. Miyaoka and Y. Mitsuya
通讯作者：
T. Miyaoka and Y. Mitsuya
高分辨率触觉显示器的驱动机制
DOI：
--
发表时间：
2004
期刊：
The 14th International Conference on Artificial Reality and Telexistence
影响因子：
--
作者：
NAKASHIGE Mutsuhiro;HIROTA Koichi;HIROSE Michitaka
通讯作者：
HIROSE Michitaka