A development research of auto braille transformation system for scientific school text by using a scanner

在这项研究中，我们开发了一种新的光学识别包括数学公式的科学文献的实验系统。该系统识别清晰打印的数学文档的扫描图像，并以各种格式输出识别结果：LaTeX、MathML，特别是盲文代码、英文文本的UBC(统一盲文代码)和日文文本的日文盲文代码。对于数学表达式，该系统几乎可以识别大学数学基础课程中使用的所有表达式。该系统有两种用户界面模式：全自动盲人用户模式和交互模式。后一种模式提供了一个非常简单的手写界面来纠正数学公式的识别结果。我们已经制作了集成打印字符和盲文代码的XML文档。集成的文件有打印的字符信息，视力正常的人也可以使用。这对苍蝇可用于电子图书馆具有重要意义。1955年，国际盲文理事会(ICEB)发布了统一盲文代码(UBC)，以统一英语世界的盲文。我们把UBC改成了日文版UJBC。为了开发UJBC，用Unicode将盲文符号分配给英语和日语图形字符代码。

In this research, we developped a new experimental system of optical recognition of scientific documents including mathematical expressions. The system recognizes scanned images of clearly printed mathematical documents and outputs the recognition results in various formats : LaTeX, MathML, and especially in Braille codes, in UBC (Unified Braille Code)for English texts and in Japanese Braille Codes for Japanese texts. As for the mathematical expressions, the system recognizes almost all expressions used at the first courses of university mathematics level. The system has two modes of user interfaces : afully automatic mode for blind users and an interactive mode. The latter mode provides a very easy handwriting interface to correct the recognition results of mathematical expressions.We have made XML documents integrated printed characters and braille codes. The integrated documents have informations of printed characters, and the sighted people can also use them. This has an important meaning that the flies can be used the electronic liblary.In 1955, International Council on english Braille (ICEB) released Unified Braille Code (UBC) to unify the Braille in English-spoken world. We aproved UBC to Japanese version UJBC. In order to develop the UJBC, braille symbols were assigned to English and Japanese graphic character codes with Unicode.