Construction of high level vision system with effective visual field

本研究的目的是构建具有“扫视”和“搜索”两个视觉过程阶段的高效视觉信息处理视觉模型。然后，利用人的有效视野这一心理概念，适当地选择这些过程阶段作为指标。并对人眼视觉功能中的有效视野进行了心理实验，分析了其特点。将具有有效视野的模型应用到传统视觉系统中，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。然后，对不同图案进行了有效视野的心理实验。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，人类在瞬间通过一些方法从外部性中量化信息。然后，我们尝试构建高级视觉系统，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。有效视野作为一种指标很难测量。因此，我们用物体图像熵来代替物体图像熵，这是一种显示物体图像信息量的指标。物体图像熵是由物体图像简单计算的一维尺度。在心理实验中证实，如果熵高，则容易被识别。另外，通过计算机对三维物体进行建模，自动选择视觉方向的仿真实验也验证了该方法的有效性。在未来，它将在实际的视觉系统中构建。

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.