立体视觉与纯双眼视觉过程的共同特征。

Shared characteristics of stereopsis and the purely binocular process.

作者信息

Wolfe J M, Held R

出版信息

Vision Res. 1983;23(3):217-27. doi: 10.1016/0042-6989(83)90110-4.

Abstract

Wolfe and Held (1981) Vision Res. 21, 1755-1759 demonstrated the existence in the human visual system of a purely binocular process. A purely binocular process is defined as a process that responds only to binocular stimulation and not to stimulation of either eye alone. In this paper, some of the characteristics of the purely binocular process are investigated. We find: (1) the process is less sensitive to high spatial frequencies than is the visual system as a whole. (2) It is insensitive to stimuli near the detection threshold for the visual system as a whole. (3) It makes a greater contribution to the appearance of vertically oriented stimuli than to the appearance of horizontally oriented stimuli. (4) The function of the purely binocular process can be disrupted by blurring the image in one eye (artificial anisometropia). Each of these properties of the purely binocular process is similar to the known characteristics of stereopsis. This suggests that the purely binocular process is a necessary stage in stereopsis.

摘要

沃尔夫和赫尔德（1981年，《视觉研究》第21卷，1755 - 1759页）证明了人类视觉系统中存在一种纯粹的双眼视过程。纯粹的双眼视过程被定义为一种仅对双眼刺激做出反应，而不对单眼刺激做出反应的过程。在本文中，对纯粹双眼视过程的一些特性进行了研究。我们发现：（1）该过程对高空间频率的敏感度低于整个视觉系统。（2）它对整个视觉系统接近检测阈值的刺激不敏感。（3）它对垂直方向刺激外观的贡献比对水平方向刺激外观的贡献更大。（4）通过模糊一只眼睛中的图像（人为屈光参差），可以破坏纯粹双眼视过程的功能。纯粹双眼视过程的这些特性中的每一个都与已知的立体视觉特征相似。这表明纯粹双眼视过程是立体视觉中的一个必要阶段。