通过在虚拟三维空间中构建基于双目视差和运动像差的不同深度的柱形面,使被试者在三维空间中行走运动,采用心理物理学的固定值刺激法,获取被试者在不同观察距离下基于双目视差线索、运动像差线索,以及两种线索同时作用时的深度感知数据,研究双目视差线索和运动像差线索对人眼深度感知的影响。结果表明:在不同的观察距离下,双目视差线索和运动像差线索对人眼的深度感知有不同的影响;在远距离观察条件下,运动像差线索对深度感知的权重比在近距离观察条件下大;而在近距离观察条件下,两种线索同时作用时对深度感知没有促进作用,并且运动像差线索对深度感知的作用较小。

By using the method of constant stimuli, binocular-disparity based and motion-parallax based cylinders with various depths were produced in three-dimensional space as experimental stimuli. Observers were asked to walk in the three-dimensional space, and depth perception data at different viewing distances were obtained by using binocular-disparity cue, motion-parallax cue, and both binocular-disparity and motion-parallax cues separately. The experimental results show: at different viewing distances, binocular-disparity and motion-parallax cues have different influences on depth perception. In the far-distance viewing condition, the weight of motion parallax cue in depth perception is relatively larger than that in the near-distance viewing condition; in the near-distance viewing condition, when binocular-disparity and motion-parallax cues are combined, there is no promotive effect in depth perception and the effect of motion parallax cue is very small.