| 仿真假体视觉下的运动感知研究 |
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| 引用本文： | 姜广淼,赵瑛,王铁,何洋,景佳琪.仿真假体视觉下的运动感知研究[J].中国医学物理学杂志,2022,0(9):1105-1113. |
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| 作者姓名： | 姜广淼 赵瑛 王铁 何洋 景佳琪 |
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| 作者单位： | 内蒙古科技大学信息工程学院， 内蒙古 包头 014010 |
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| 摘 要： | 为了研究假体佩戴者对于目标物体的运动感知，利用Unity搭建虚拟仿真假体视觉场景，利用遮挡范式下对碰撞时间的估计，探究不同运动方向、运动速度、运动方式、目标物体形状、环境对比度以及各因素下的性别差异对仿真假体视觉下的运动感知的影响。试验结果表明，被试者对于水平方向上的估计要比垂直方向上的估计更准确；对于快速运动的估计准确度要优于相对慢速运动物体的准确度；运动方式因素对估计影响无显著性差异；相同形状下，物体越大，被试者估计的准确性越高且对多角图形的运动比圆润图形的运动更加敏感；不同环境对比度对估计也具有显著性差异；性别对于估计无显著性影响，但不同因素下的结果有区别。
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| 关 键 词： | 运动感知 视觉假体 虚拟现实 遮挡范式 碰撞时间 |
Motion perception in simulated prosthetic vision |
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| JIANG Guangmiao,ZHAO Ying,WANG Tie,HE Yang,JING Jiaqi.Motion perception in simulated prosthetic vision[J].Chinese Journal of Medical Physics,2022,0(9):1105-1113. |
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| Authors: | JIANG Guangmiao ZHAO Ying WANG Tie HE Yang JING Jiaqi |
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| Affiliation: | School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China |
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| Abstract: | Abstract: Avirtual simulation scene for visual prosthesis is built by Unity for studying the motion perception of the wearer to target object, and the effects of motion direction, motion speed, motion mode, target object shape, environmental contrast level, and gender differences in various situations on the motion perception in simulated prosthetic vision are explored through the estimation of the time to collision. The experimental results showed that subjects estimation in the horizontal direction is more accurate than the estimation in the vertical direction, and that the estimation accuracy for fast motion is better than the accuracy for relatively slow motion.There is no significant difference in the effect of motion mode on the estimation. In the same shape, the larger the object is, the higher the accuracy of the subjects estimation is, and the subjects are more sensitive to the motion of polygonal graphics than round graphics. The estimations at different environmental contrast levels are significantly different. Gender has no significant effect on the estimation, but the results in various situations are different. |
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| Keywords: | Keywords: motion perception visual prosthesis virtual reality occlusion paradigm time to collision |
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