...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Advanced Mechanical Design, Systems, and Manufacturing >Edge angle perception precision of active and passive touches for haptic VR using dot-matrix display
【24h】

Edge angle perception precision of active and passive touches for haptic VR using dot-matrix display

机译：使用点矩阵显示的触觉VR的主动和被动触摸的边缘角度感知精度

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

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.
机译：在触觉虚拟现实（VR）中，存在两个重要挑战：一个是用触觉设备再现表面感觉的困难，另一个是用于显示的呈现方法。我们使用手掌演示开发了一种触觉鼠标，以解决前一个难题，即“哪种触觉在纹理识别，主动或被动触摸方面具有优势？”在心理物理实验中，点图案的两个斜边连续显示为简单纹理，人类受试者对其进行比较以确定哪个更大。我们使用通过恒定刺激方法计算的边缘角度的差异阈值来评估感知的精度。实验结果表明，低边缘移动速度（45和90 mm / s）下的感知精度高于高速（130和170 mm / s）下的感知精度，此外，边缘的精度没有显着差异主动和被动触摸之间的角度感知。前一个发现似乎是由于机械感受单元处理不平整表面的性能好。后一个发现是由于从运动皮层提供的运动信号的有效复制机制对纹理识别没有显着影响。物体运动引起的触觉图像质量下降可以通过中枢神经系统中的信息处理得到补偿，该信息处理可以保持稳定的触觉图像，而无需使用仿制品。这项工作有助于开发为视力障碍者提供触觉图的触觉设备。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号