TRADEOFFS BETWEEN STEREOPSIS AND PROXIMITY LUMINANCE COVARIANCE AS DETERMINANTS OF PERCEIVED 3D STRUCTURE
TRADEOFFS BETWEEN STEREOPSIS AND PROXIMITY LUMINANCE COVARIANCE AS DETERMINANTS OF PERCEIVED 3D STRUCTURE
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DOI：
10.1016/0042-6989(86)90154-9
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发表时间：
1986-01-01
期刊：
影响因子：
1.8
通讯作者：
WURST, SA
中科院分区：
文献类型：
--
作者：
DOSHER, BA;SPERLING, G;WURST, SA
一个顺时针旋转的三维金属丝立方体（内克尔立方体）的二维极坐标投影可以被认为是一个顺时针旋转的立方体（刚性立方体）或一个逆时针旋转的橡胶截棱锥（非刚性立方体）。3D视觉感受受到各种线索的影响：线性透视、立体视差和接近度-亮度协方差（PLC，边缘的强度与它们与观察者的接近度成比例）。视角本身或结合起来是一个非常弱的线索，而PLC是一个强大的线索[Schwartz和Sperling（1983）Bull. Psychon。Soc.21，456-458]。在这里，我们确定了心理测量功能的感知分辨率在静态显示器和动态旋转显示器（有和没有静态预览）确定的立体视觉和PLC在隔离和两个线索联合，可能在冲突。在静态显示和大多数动态显示中，立体视觉是主导线索。当一个静态显示在一个动态显示之前时，它强烈地影响了随后的动态显示。所有条件下的感知分辨率都是由赢家通吃模型准确描述的，在这个模型中，来自不同线索的每个被感知者的证据强度只是简单地代数相加。
A 2D polar projection of a 3D wire cube (Necker cube) in clockwise rotation can be perceived either veridically as a clockwise-rotating cube (rigid percept) or as a counterclockwise-rotating rubbery, truncated pyramid (nonrigid percept). The 3D percept is influenced by various cues: linear perspective, stereo disparity, and proximity-luminance covariance (PLC, the intensification of edges in proportion to their proximity to the observer). Perspective, by itself or in combination, is a very weak cue whereas PLC is a powerful cue [Schwartz and Sperling (1983) Bull. Psychon. Soc. 21, 456-458]. Here we determined psychometric functions for perceptual resolution in static displays and dynamic rotating displays (with and without a static preview) as determined by stereopsis and PLC in isolation and with both cues jointly, possibly in conflict. Stereopsis was the dominant cue in static displays and in most dynamic displays. When a static display preceded a dynamic display, it strongly influenced the subsequent dynamic percept. Perceptual resolution in all conditions was accurately described by a winner-take-all model in which the strength of evidence for each percept from different cues is simply algebraically added.