Yang Y, Blake R
Department of Psychology, Vanderbilt University, Nashville, TN 37240, USA.
Vision Res. 1995 Apr;35(7):949-60. doi: 10.1016/0042-6989(94)00177-n.
Observers viewed flashed random-dot stereograms depicting a pair of long, narrow, curved ribbons of textured surface defined by a Gabor function in disparity. Observers judged the location of the peak of the depth profile of one ribbon relative to that of the other. In one ribbon, disparity changed smoothly while in the other disparity was periodically sampled. Up to a limiting sampling period, disparity interpolation produced accurate surface reconstruction, but beyond that performance deteriorated rapidly. This interpolation limit depended on surface orientation (vertical vs horizontal) and disparity sign, but not Gabor spatial frequency.
观察者观看了闪烁的随机点立体图，这些立体图描绘了一对由视差中的伽柏函数定义的、长而窄的、有纹理表面的弯曲条带。观察者判断一条条带深度剖面的峰值相对于另一条条带的峰值位置。在一条条带中，视差平滑变化，而在另一条条带中，视差是周期性采样的。在一个极限采样周期之前，视差插值产生了准确的表面重建，但超过这个周期，性能迅速恶化。这个插值极限取决于表面方向（垂直与水平）和视差符号，但不取决于伽柏空间频率。
