The principle of historical kanji glyph change and geographical kanji glyph difference

我们从历史手稿和印刷书籍中收集汉字字形，构建汉字字形数据库。该数据库包含两种类型的字形，一种是来自各个时间段和地理区域的规范性书籍的规范性字形，另一种是来自Praivate书籍的非规范性字形。从而了解东亚的历史变迁和地理差异。并阐明了汉字识别的基本概念。

We construct the database about kanji glyphs collected from historical manuscripts and printed books. The database contains two type glyphs, one is the normative glyphs from the normative books in each time period and geographical regions, and the other is non-ormative glyphs from the praivate books. So we can comprehend the historical glyph change and geographical glyph difference in the East Asis. And we clarify the basic concept about kanji glyph.