The effect of display size on disparity scaling from differential perspective and vergence cues
The effect of display size on disparity scaling from differential perspective and vergence cues
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DOI：
10.1016/0042-6989(95)00190-5
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发表时间：
1996-05-01
期刊：
影响因子：
1.8
通讯作者：
Rogers, BJ
中科院分区：
文献类型：
--
作者：
Bradshaw, MF;Glennerster, A;Rogers, BJ
本研究比较了差异视角和聚散角操作在从水平视差缩放深度方面的相对有效性。当差分透视和聚散角一起操纵（模拟从28厘米到无限远的不同观看距离的范围），获得了完整深度恒定性所需的缩放比例的约35%。当被分别操纵时，每个线索的相对影响主要取决于视觉显示的大小。差分透视仅在显示器尺寸足够大时有效（即，大于20度），而聚散角的影响虽然在每个显示器尺寸下都很明显，但在较小的显示器中最大。对于每个显示尺寸的两个线索的独立效果近似相加。感知的大小（和二维间距的元素）也受到不同的角度和聚散度的操纵。这些结果证实，差分视角和聚散度是有效的缩放感知的二维尺寸的元素和感知的深度从水平的差异。他们还表明，这两个线索的组合效果近似等于其单独效果的总和。
The present study compared the relative effectiveness of differential perspective and vergence angle manipulations in scaling depth from horizontal disparities. When differential perspective and vergence angle were manipulated together (to simulate a range of different viewing distances from 28 cm to infinity), approximately 35% of the scaling required for complete depth constancy was obtained. When manipulated separately the relative influence of each cue depended crucially on the size of the visual display. Differential perspective was only effective when the display size was sufficiently large (i.e., greater than 20 deg) whereas the influence of vergence angle, although evident at each display size, was greatest in the smaller displays. For each display size the independent effects of the two cues were approximately additive. Perceived size (and two-dimensional spacing of elements) was also affected by manipulations of differential perspective and vergence. These results confirm that both differential perspective and vergence are effective in scaling the perceived two-dimensional size of elements and the perceived depth from horizontal disparities. They also show that the effect of the two cues in combination is approximately equal to the sum of their individual effects.