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

科学学校文本扫描仪自动盲文转换系统的开发研究

基本信息

批准号：
11558015
负责人：
OHTAKE Nobuyuki
金额：
$ 9.02万
依托单位：
Tsukuba College of Technoloty
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

项目摘要

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.

在本研究中，我们开发了一个新的包含数学表达式的科学文献光学识别实验系统。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，特别是以盲文码输出，英语文本用UBC（统一盲文码），日语文本用日文盲文码。对于数学表达式，系统几乎可以识别大学数学一级课程中使用的所有表达式。该系统有两种用户界面模式：面向盲人的全自动模式和交互式模式。后一种模式提供了一个非常简单的手写界面来纠正数学表达式的识别结果。我们制作了集印刷字符和盲文代码于一体的XML文档。集成文档具有印刷文字信息，视力正常的人也可以使用。这对电子图书馆的蝇类利用具有重要意义。1955年，国际英语盲文理事会（ICEB）发布了统一盲文代码（UBC），统一了英语世界的盲文。我们将UBC批准为日文版UJBC。为了开发UJBC，使用Unicode将盲文符号分配给英语和日语图形字符代码。