Analogue models of motion perception.
Analogue models of motion perception.
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运动感知的模拟模型。
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
M. Morgan
中科院分区：
文献类型：
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作者：
M. Morgan
在离散空间跳跃中移动的物体很难与连续移动的物体区分开来，只要跳跃之间的时间不是太长。这种感知的连续性的程度可以通过在目标跳跃之间的时间探测感知的空间位置来测量，通过游标对准或立体技术。随着跳跃之间的时间增加，空间插值的准确性福尔斯下降，直到最终仅在其实际空间位置处看到对象。这些结果可以在频域中进行分析，通过将视在运动的信号处理为包含相对低的频率（连续运动）和引起运动离散性的较高频率的周期波形的模拟。如果这样的输入具有通过物理过滤逐渐去除的较高频率，则其被感知为广告越来越连续。当离散跳跃以大于约30 Hz的速率发生时，这种滤波对于感知的连续性是不必要的，这一事实表明，大于该极限的频率被视觉系统本身去除。
An object moving in discrete spatial jumps is difficult to distinguish from a continuously moving object, provided the time between jumps is not too great. The extent of this perceived continuity may be measured by probing the perceived spatial location at times between the target jumps, by either a vernier alignment or a stereoscopic technique. As the time between jumps increase the accuracy of spatial interpolation falls, until finally the object is seen only at its actual spatial locations. These results can be analysed in the frequency domain by treating the signal for apparent motion as the analogue of a periodic waveform containing relatively low frequencies (the continuous motion) and higher frequencies giving rise to the discreteness of the motion. If such an input has the higher frequencies progressively removed by physical filtering, it is perceived ads increasingly continuous. The fact that such filtering is not necessary for perceived continuity when the discrete jumps occur at rates greater than about 30 Hz suggests that frequencies greaster than that limit are removed by the visual system itself.