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

本研究项目旨在对二维运动信息导致的人体三维结构感知的本质得到一些基本的发现。为此，我们首先回顾了以往关于运动中结构感知的研究成果，并对运动中出现的边界分割和曲面插值过程之间的感知交互进行了实验，并在两篇日文报告中进行了总结。然后，我们关注了二维径向运动的速度感知，以及连续观看二维扩张/收缩运动所引起的运动后效应。实验结果总结在另外两份报告（日语）中，题为“包括空间频率梯度的径向运动的速度感知”和“包括空间频率梯度的扩张和收缩运动的运动后效”。此外，我们还尝试了通过立体观察连续移位的随机点图案来进行深度和运动感知的初步实验。

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.