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Construction of high level vision system with effective visual field

有效视野高水平视觉系统的构建

基本信息

批准号：
11650423
负责人：
SATO Yukio
金额：
$ 1.73万
依托单位：
Nagoya Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650423/
关键词：
Active Vision Computer Vision Visual perception psychology Vision model Effective visual field Central vision Peripheral vision 能動視野

项目摘要

The purpose of this study is to construct the visual model for efficient visual information processing, which has "glance view" and "searching view" which are human's visual sense process stages. Then those process stages are chosen properly as an index which used the effective visual field that is a human's psychological concept.Moreover, the psychological experiment was carried out about the effective visual field in human visual function, and its characteristics were analyzed. The new system is constructed by applying the model with effective visual field to the conventional vision system. The simulation experiment was carried out, and the effectiveness of this model was shown.Then, the psychological experiment about the effective visual field was carried out for various patterns. It was confirmed that there was the relation of the trade-off between the complexity of the visual processing problem and effective visual field. And it was shown that the human is quantifying information from the externality by some methods in a moment. Then, we tried the construction of the high-level vision system by including such features in the system, can choose the visual direction which facilitates the 3-D object recognition.It is difficult to measure the effective visual field as an index. Therefore, the object image entropy, which is an index that shows the information amount of the object image, was used as the index instead of it. The object image entropy is one-dimensional scale simply calculated from the object image. In the psychological experiment, it was confirmed that it was easy to be recognized, if the entropy is high. In addition, the effectiveness was confirmed in the simulation experiment that automatically chose visual direction by modeling the 3-D object in the computer.In the future, it is constructed in actual vision system.

本研究的目的是构建有效的视觉信息处理的视觉模型，该模型包含人的视觉感觉加工阶段--“扫视”和“搜索”。以人的心理概念--有效视野为指标，对人体视觉功能的有效视野进行了心理学实验，并分析了其特点。将有效视场模型应用到传统的视觉系统中，构建了新的视觉系统。进行了仿真实验，验证了该模型的有效性，并对不同图案的有效视场进行了心理实验。证实了视觉加工问题的复杂性与有效视野之间存在权衡关系。研究表明，人是在瞬间通过某种方法量化来自外部性的信息。然后，我们尝试构建高层视觉系统，通过在系统中加入这些特征，可以选择有利于三维物体识别的视觉方向，但难以测量有效视野作为指标。因此，使用作为表示对象图像的信息量的指标的对象图像熵来代替它作为指标。对象图像熵是简单地从对象图像计算的一维尺度。在心理学实验中，证实了如果熵较高，就很容易被识别。此外，通过在计算机中对三维物体进行建模自动选择视觉方向的仿真实验验证了该方法的有效性，并将其应用于实际的视觉系统中。