A fundamental study on the development of a text based expression about object shapes and its learning support tools

本研究的目的是研究一种新的方法来呈现物体形状的视觉障碍。首先，我们专注于自由人链码方案，以提供一个模式的数字，以视障人士。然后，我们发现这个新的想法导致帮助盲人理解物体的形状。此外，我们还开发了软件，显示视觉模式，以视力正常的盲人。使用这个软件，我们可以知道盲人对他们脑海中的模式的看法。该软件工具可以作为数学教育的有用工具。

The goal of this study is to research about a new method to present object shapes logically for the visually impaired. Firstly、 we focused on the freeman chain code scheme in order to present a pattern of the figure to people with visual impaired. Then、 we found that this new idea lead to help the blind to understand object shapes. In addition we developed the software which shows visual pattern to the sighted for the blind. Using this software、 we can know what the blind considers about a pattern in their mind. This software tool can be useful tool for mathematical education.