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PSYCHOPHYSICAL AND COMPUTATINAL STUDY ON DETERMINING SEPARATION AND INTEGRATION MECHANISMS FOR THE OBJECT RECOGNITION PROCESSES AND THREE-DIMENSIONAL PERCEPTION PROCESSES

确定物体识别过程和三维感知过程的分离和整合机制的心理物理和计算研究

基本信息

批准号：
13680861
负责人：
SAKAI Ko
金额：
$ 1.98万
依托单位：
UNIVERSITY OF TSUKUBA
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13680861/
关键词：
VISION STEREOPSIS OBJECT RECOGNITION PSYCHOPHYSICS INTEGRATION OF INFORMATION

项目摘要

The project studied psychophysically and computationally the relevance between shape perception and three-dimensional perception in order to understand the information integration processes relevant to higher-order visual functions.In psychophysical experiments, we generated stimuli whose shape perception, three dimensional perception and stereopsis are independent, and obtained the relevance between the shape perception annd 3D perception. We were able to distinguish shape perception and stereo perception which are mixed in the previous experiments. Specifically, we we generated stimuli whose shape perception, shape form shading, and stereo perception are independent, and determined the relation between the shape perception and 3d perception. The results suggest that 3D perception from shading has different characteristics from depth perception from binocular stereopsis.In computational study, we investigated if 3D information is relevant to object recognition, what would be the roles and mechanisms. Specifically, (1) dynamics of information integration, (2) grouping of regions due to shape and binocular disparity are studied. We constructed a model for the grouping and integration in early to intermediate-level visual processes. We further constructed a model for V2 and V4 that reproduces the specificity to surface perception, and examined the integration of attributes to the perceived surfaces.

本课题从心理物理学和计算物理学的角度研究了形状知觉和三维知觉之间的相关性，以了解高阶视觉功能的信息整合过程，在心理物理学实验中，我们产生了形状知觉、三维知觉和立体视觉独立的刺激，得到了形状知觉和三维知觉之间的相关性。我们能够区分形状知觉和立体知觉，这是混合在以前的实验。具体来说，我们产生的刺激，形状知觉，形状形状阴影，立体知觉是独立的，并确定形状知觉和三维知觉之间的关系。研究结果表明，阴影引起的三维知觉具有不同于双眼立体视觉深度知觉的特点，在计算研究中，我们探讨了三维信息是否与物体识别有关，其作用和机制是什么。具体而言，（1）信息集成的动力学，（2）由于形状和双目视差的区域分组进行了研究。我们构建了一个模型的分组和整合的早期到中级的视觉过程。我们进一步构建了V2和V4的模型，再现了对表面感知的特异性，并研究了属性与感知表面的整合。