Eye movement on stereoscipic space : development of the apparatus and experiments.

立体空间上的眼球运动：设备和实验的开发。

• 批准号: 10551004
• 负责人: SHIDOJI Kazunori
• 金额: $ 3.26万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10551004/
• 关键词: Virtual Reality; Eve Movement Measurement; Fixation Point; Stereoscopic image space; Convergence; Fatigue; 眼球運動; 眼球運動測定装置

1) The development of the head mounted eye movement measurement device : The device that both eyes' movements could be measured was developed to make the fatigue problem on the virtual reality environment clear. This device was attatched on the head mounted display. Both eyes' movements can be measured with this device when an actual space environment, a virtual reality environment, and a compound reality environment are being observed. In this device the measurement of fixation point was based on the center location of the pupil by the video image. Two kinds of algorithm were developed about the central location of measuring it of the pupil. The method of Haslwanter (1995) was used for the way of calculating an eye position from the pupil center position. And we developed a new calibration method to improve space accuracy.2) Experiments : The eye movements on the actual space observation and the stereoscopic image observation were measured and compared. Regardless of the actual space observation and the stereoscopic image observation, the results showed that non-dominant eye did not point to the object in some cases. The object was moved to the right and left of the horizontal, there were few differences between both observations. However, it was moved to the front and back, there were a larger differences. The convergence - divergence movement did not found in the stereoscopic image observation. This result can be interpreted that observer did not use ample depth cues on the stereoscopic image observation and this causes the fatigue on the virtual reality.

1)头戴式眼动测量装置的开发：开发了可测量双眼运动的装置，使虚拟现实环境下的疲劳问题变得清晰。这个装置被安装在头戴式显示器上。在实际空间环境、虚拟现实环境和复合现实环境下，通过该设备可以测量双眼的运动。在该装置中，注视点的测量是基于视频图像的瞳孔中心位置。提出了两种测量瞳孔中心位置的算法。采用Haslwanter（1995）的方法从瞳孔中心位置计算眼睛位置。并提出了一种新的标定方法，以提高空间精度。2)实验：对实际空间观察和立体图像观察时的眼球运动进行测量和比较。无论实际空间观察和立体图像观察，结果都表明，在某些情况下，非主视眼没有指向物体。物体被移动到水平的左右，两种观测结果之间几乎没有差异。然而，它被移到前面和后面，有较大的差异。在立体图像观察中没有发现辐散运动。这一结果可以解释为观察者在立体图像观察中没有使用足够的深度线索，从而导致了对虚拟现实的疲劳。