Kumar T
Department of Molecular and Cell Biology, University of California, Berkeley 94720-3206.
Vision Res. 1995 Jan;35(2):255-62. doi: 10.1016/0042-6989(94)00114-2.
A local region in an image is seen as slanted when the two eyes are shown different luminance values in that region. The steepness of the slant depends upon the size of the region and the difference in the luminance values in the two eyes. Three examples where this phenomenon influences depth perception are given: (1) stereopsis without corresponding binocular luminance edges is shown to be a limiting case of the phenomenon; (2) edges less than 1 min arc apart can be seen in relative depth with respect to each other; and (3) regions that appear transparent or translucent can be seen in depth despite having all the luminance edges at zero disparity in simple stereo images.
当图像中的某个局部区域在两只眼睛中显示出不同的亮度值时，该区域会被视为倾斜的。倾斜的程度取决于该区域的大小以及两只眼睛中亮度值的差异。给出了这种现象影响深度感知的三个例子：（1）没有相应双目亮度边缘的立体视觉被证明是该现象的一种极限情况；（2）相距小于1分弧度的边缘可以相对于彼此以相对深度被看到；（3）尽管在简单立体图像中所有亮度边缘的视差都为零，但看起来透明或半透明的区域仍可以在深度上被看到。
