The basic research on obtaining the visual information of wheelchair users

1.我们检查了轮椅使用者在斜坡和平坦部分的眼睛注视趋势。轮椅使用者将眼睛摄像头安装在头上并移动，以记录眼睛注视的点。结果如下：(1)上坡注视时间比下坡和平地注视时间长。他们主要看到的是路面。(3)他们看到的距离路面的坡度为2米或3米，平坦部分为6米。我们研究了轮椅使用者和一般人在看到信号时停下来并移动的注视倾向。实验在十字路口进行。结果如下：(1)两种情况下的平均注视时间没有差异。然而，当他们在信号处停下来时，它比其他情况下的时间更长。(2)轮椅使用者与一般人在运动时注视的对象不同。(3)正常人比轮椅使用者能获得更多的先验信息。我们研究了轮椅使用者和一般人在山路上的注视倾向。(1)轮椅使用者主要是仔细观察地面和手印，其他东西看得并不多。一般人不仅能看到地面和手印，还能看到山川、小镇等风景。(3)轮椅使用者主要看到前方，而一般人看到的是不妨碍其视野的方向。

1.We examined the tendency of the eye fixation of wheelchair users at a slope and a flat portion. Wheelchair users installed the eye camera on their heads and moved in order to record the point of the eye fixation. The results are as follows. (1)The time of the eye fixation at the up slope is longer than that of down slope and the flat portion. (2)It is the road surface that they see mainly. (3)The distance to the road surface they see is 2 or 3m at the slope, 6m at the flat portion.2.We examined the tendency of the eye fixation of wheelchair users and general people in stopping at the signal and moving. The experiment was performed at the intersection. The results are as follows. (1)The average time of the eye fixation is not different between in both situations.When they stop at the signal, however, it is longer than that of the other situation. (2)The object of the eye fixation is different between wheelchair users and general people when they are moving. (3)General people can get much preceding information than wheelchair users.3.We examined the tendency of the eye fixation of wheelchair users and general people at the mountain trails. (1)Wheelchair users mainly observe the ground and the hand print carefully, but they don't see other things so much. (2)General people see not only the ground and the hand print but also the scenery such as the threes, the mountains and the town. (3)Wheelchair users mainly see ahead, on the other hand, general people see the direction in which their field of vision are not obstructed.