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A Basic Study on Visual Motion Recognition Processes from the Point of View of Spatial Information Processing Approach

空间信息处理方法视角下视觉运动识别过程的基础研究

基本信息

批准号：
63410002
负责人：
AIDA Satoru
金额：
$ 6.08万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63410002/
关键词：
correspondence problem vernier alignment adaptation to moving grating apparent velocity radial motion time derivative Fraser illusion theory of situational structure 速度評価視的運動順応周辺視断続的運動よりひも錯視位置の補間短距離仮現運動位相差検知閾臨界時空間 /

项目摘要

During the 4 year period in which the grant was granted to us, the following principal discoveries have been made.1) The factors modifying the mode of appearance of apparent motion was investigated. It was found that not only the characteristics of the physical dimensions of the stimulus but also such topdown relationships as phonemes associated to particular letters determine the correspondence between two stimuli that cause apparent motion.2) Vernier-type alignment judgment was made for sine-wave gratings placed side by side. The acuity was more or less as expected from the conventional contrast sensitivity functions related to the grating but, when FM component was introduced, acuity increased as amplitude and frequency of that component were made greater.3) The effects of adaptation to a moving grating upon apparent velocity of another moving grating was studied. It was found that it has a decelerating effect but the effect was independent of the direction of adapting grating, at least for high velocity test grating.4) The stimulus cues that determine apparent velocity of a target in radial (approaching) motion as well as the time taken for it to reach the observer (the collision time) were studied. The time derivative of the change in the size of the retinal image was found to be one of them. When the target was shown intermittently, the localization of the target was done by interpolation which varies according to the actual mode of presentation.5) The dynamic optical illusion was studied using Fraser's figure. It was found that contraction/expansion of this illusion was more pronounced when the figure was rotated in comparison to an ordinary spiral figure in a similar condition.6) A theoretical analysis of the space in which motion takes place was attempted by a view-point named "theory of situational structures'.

在获得该基金的4年期间，我们取得了下列主要发现：1）研究了改变视运动出现方式的因素。结果发现，不仅刺激的物理尺寸的特性，而且与特定字母相关的音素等自上而下的关系决定了引起明显运动的两个刺激之间的对应关系。2）对并排放置的正弦波光栅进行游标式对齐判断。从传统的对比灵敏度函数的预期或多或少的敏锐度与光栅，但当FM分量的引入，敏锐度增加的幅度和频率的分量是更大的。3）适应移动光栅对另一个移动光栅的表观速度的影响进行了研究。结果发现，它有减速效果，但效果是独立的方向的适应光栅，至少对于高速测试光栅。4）刺激线索，确定径向（接近）运动的目标的表观速度，以及它到达观察者所需的时间（碰撞时间）进行了研究。视网膜图像的大小的变化的时间导数被发现是其中之一。当目标被间歇显示时，目标的定位是根据实际的呈现方式而变化的插值来完成的。5）利用Fraser图形研究了动态视错觉。结果发现，与处于类似条件下的普通螺旋图形相比，当图形旋转时，这种错觉的收缩/膨胀更加明显。6）通过名为“情境结构理论”的观点，尝试对运动发生的空间进行理论分析。