Velocity gradients and relative depth perception
Velocity gradients and relative depth perception
复制标题
速度梯度和相对深度感知
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
G. Andersen
中科院分区：
文献类型：
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作者：
M. Braunstein;G. Andersen
速度梯度在提供相对深度信息方面的有效性通过随机点模式水平翻译进行评估。梯度模拟两个平面在中心的水平线相交，受试者判断中心是最近还是最远的显示部分。精度随着最大点速度的增加而增加，在结合最高速度（10.40 /秒）和两个显示持续时间（10秒）的情况下，精度超过90%。单独的实验检查了平面运动中感知到的旋转成分，以及报告显示器刚性组织的延迟。法伯和麦康基（1979）发现的机会精度的可能原因和最大网点速度对精度的影响的替代解释进行了讨论。提出了一个考虑点速度和显示时间对相对深度判断精度影响的模型。
The effectiveness of velocity gradients in providing relative depth information was assessed using random dot patterns translating horizontally. The gradients simulated two planes meeting at a horizontal line at the center, and subjects judged whether the center was the nearest or farthest part of the display. Accuracy increased with maximum dot speed, exceeding 90% in conditions combining the highest speed (10.4o/sec) and longer of two display durations (10 sec) with unrestricted fixation. Separate experiments examined a rotational component perceived in the motion of the planes and the latency in reporting a rigid organization of the displays. Possible reasons for the chance accuracy found by Farber and McConkie (1979) and alternative explanations of the effect of maximum dot speed on accuracy are discussed. A model is presented that accounts for the effects of dot speed and display duration on the accuracy of relative depth judgments.