Perception of three-dimensional structure based on two-dimensional motion information

本研究旨在从二维运动信息出发，对人类感知三维结构的本质做出一些基本发现。为此，我们首先回顾了以往关于运动感知结构的研究成果，并对运动结构感知中的边界分割和表面内插过程之间的知觉交互作用进行了实验，总结了两篇报道(日文)。然后我们关注二维径向运动的速度知觉，以及连续观看二维扩张/收缩运动引起的运动后效。实验结果在另外两份报告(日文)中进行了总结，其标题分别为“包括空间频率梯度的径向运动的速度知觉”和“包括空间频率梯度的扩张和收缩运动的运动后效”。此外，我们还尝试了通过对连续移动的随机点图案进行立体观察的方法，对深度和运动知觉进行了初步实验。

This research project aimed to get some basic findings about the nature of human perception of three-dimensional structure resulted from two-dimensional motion information. For the purpose, at the beginning we reviewed past research results regarding perception of structure from motion, and carried out an experiment on perceptual interaction between boundary segmentation and surface interpolation processes appeared in structure-from-motion, which were summarized in two reports (in Japanese). Then we were concerned about speed perception of two-dimensional radial motion, and also about motion aftereffect induced by continuous viewing of two-dimensional expansion/contraction movement. Experimental results were summarized in another two reports (in Japanese) entitled "Speed perception of radial movement including spatial frequency gradients" and "Motion aftereffect for expansion and contraction movement including spatial frequency gradients." In addition, we tried a preliminary experiment on depth and motion perception by means of stereoscopic observation of successively displaced random-dot patterns.