Decoding of depth and motion in ambiguous binocular perception.
Decoding of depth and motion in ambiguous binocular perception.
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DOI：
10.1364/josaa.28.001445
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
K. Sakai;Mitsuharu Ogiya;Y. Hirai
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文献类型：
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作者：
K. Sakai;Mitsuharu Ogiya;Y. Hirai
我们以前已经表明，随机点与眼间时间延迟（ITD），两个眼睛之间的点的发病时间差，产生明显的深度和运动，虽然深度和速度是协变的，因此，ITD本质上是模糊的。具有ITD的随机点的深度与ITD成正比，这表明视觉系统假设点的恒定速度，并基于该恒定速度确定深度。我们进行了心理物理实验，以调查受试者是否感知到恒定的速度与各种ITD在随机点对齐沿着一条垂直线，确保既不明显的运动，也不意外的点之间的差距。结果表明，受试者感知到一个恒定的速度为各种ITD的深度与ITD成比例的同时感知，表明在模糊的双目感知来自ITD的深度优先于速度。
We have shown previously that random dots with an interocular time delay (ITD), the time difference of the onset of dots between the two eyes, yield both apparent depth and motion, although depth and velocity are covariant and, thus, ITD is inherently ambiguous. The depth of random dots with ITD was proportional to ITD, suggesting that the visual system assumes a constant velocity of the dots and determines depth on the basis of this constant velocity. We performed psychophysical experiments to investigate whether subjects perceive a constant velocity with a variety of ITDs in random dots aligned along a single vertical line that ensures neither apparent motion nor accidental disparity between the dots. The results showed that subjects perceive a constant velocity for a variety of ITDs with simultaneous perception of depth in proportion to ITD, indicating the priority of depth over velocity in ambiguous binocular perception derived from ITD.