The development of the automatical system with a reasoning function which recognizes the character of the excavated written sources such as Wooden Tablets

自1961年在平城宫遗址发掘出第一块木牌（木牌）以来，奈良国立文化财产研究所已研究了20多万块木牌。在本项目中，我们将木牌档案与最新的信息技术如文字识别和信息技术相结合，进行了四个核心研究：1）一个易于数字化的木牌信息系统2）一个木牌文字图像数据库3）一个支持阅读木牌的数据库4）一个木牌文字自动识别系统，并建立了木牌文字图像数据库“木牌日天”和木牌文字读取支援系统“木牌商店”。“Mokkan Jiten”包含1，200个字符类别/20，000个字符模式的彩色/单色/红外/素描图像。“木简店”由提取木牌墨水部分的图像处理系统、损坏字符图案的字符识别系统和具有最新历史地点/人物/产品名称数据库的上下文处理系统组成，提高了木牌解码的价值。最后，我们成功地实现了一个创新的自动识别系统，以读取部分有缺陷/太多损坏/不完美的条件木牌上的字符模式。“木简集天”和“木简铺”是构建木简及其他出土历史文献COE的有效组成部分，具有推动历史学和考古学研究进步的潜力。为了公开本项目的成果和木简的其他信息，我们在奈良国立文化财产研究所的网站上制作了一个网页“木馆广场”。此外，我们还出版了介绍作为纸质版“Mokkan Jiten”的“Heijo-kyu Mokkans”的“Nihon Kodai Mokkan Jiten”。

Since the first wooden tablets(Mokkan was excavated at Heijo palace site in 1961, over 200,000 wooden tablets have been researched in Nara National Research Institute for Cultural Properties. In this project, we linked the archive of wooden tablets with the latest information technology e.g. character recognition and information technology, made four core researches on 1) an easily-digitization system of the information of wooden tablets 2) a database of the character images on wooden tablets 3) databases to support reading wooden tablets 4) an automatic recognition system for characters written on wooden tablets, and built "Mokkan Jiten" that is a database of character images on wooden tablets and "Mokkan Shop' that is a support system to read characters on wooden tablets."Mokkan Jiten" contains color/monochrome/infrared/sketched images for 1,200 character categories / 20,000 character patterns. "Mokkan Shop" consisting of an image processing system to extract ink parts of wooden tablets, a character recognition system for damaged character patterns and a context processing system with the newest database of historical place/person/product name enhanced the value of decoding wooden tablets. Finally, we succeeded in practical realization of an innovative automanc-recognition-system to read character patterns on partially defective/too much damaged/imperfect condition wooden tablets."Mokkan Jiten" and "Mokkan Shop" that are the effective components to build the COE for wooden tablets and other Excavated Historical Documents, and they have the potential to make the progress of the research in history and archaeology.In order to open our achievements of this project and other information of wooden tablets, we made a web page "Mokkan Hiroba" in the web site of Nara National Research Institute for Cultural Properties. Also, we published "Nihon Kodai Mokkan JIten" that introduces the "Heijo-kyu Mokkans" as the paper-version of "Mokkan Jiten".