Ono H, Rogers B J, Ohmi M, Ono M E
Department of Psychology, York University, Ontario, Canada.
Perception. 1988;17(2):255-66. doi: 10.1068/p170255.
Random-dot techniques were used to examine the interactions between the depth cues of dynamic occlusion and motion parallax in the perception of three-dimensional (3-D) structures, in two different situations: (a) when an observer moved laterally with respect to a rigid 3-D structure, and (b) when surfaces at different distances moved with respect to a stationary observer. In condition (a), the extent of accretion/deletion (dynamic occlusion) and the amount of relative motion (motion parallax) were both linked to the motion of the observer. When the two cues specified opposite, and therefore contradictory, depth orders, the perceived order in depth of the simulated surfaces was dependent on the magnitude of the depth separation. For small depth separations, motion parallax determined the perceived order, whereas for large separations it was determined by dynamic occlusion. In condition (b), where the motion parallax cues for depth order were inherently ambiguous, depth order was determined principally by the unambiguous occlusion information.
随机点技术被用于在两种不同情况下，研究动态遮挡和运动视差的深度线索在三维（3-D）结构感知中的相互作用：（a）当观察者相对于一个刚性3-D结构横向移动时，以及（b）当不同距离的表面相对于一个静止观察者移动时。在情况（a）中，增减（动态遮挡）的程度和相对运动（运动视差）的量都与观察者的运动相关。当这两个线索指定相反且因此相互矛盾的深度顺序时，模拟表面在深度上的感知顺序取决于深度分离的大小。对于小的深度分离，运动视差决定了感知顺序，而对于大的分离，则由动态遮挡决定。在情况（b）中，深度顺序的运动视差线索本质上是模糊的，深度顺序主要由明确的遮挡信息决定。
