Automatic Classification of Spatial Relationships among Mathematical Symbols Using Geometric Features
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概要
- 論文の詳細を見る
Machine recognition of mathematical expressions on printed documents is not trivial even when all the individual characters and symbols in an expression can be recognized correctly. In this paper, an automatic classification method of spatial relationships between the adjacent symbols in a pair is presented. This classification is important to realize an accurate structure analysis module of math OCR. Experimental results on very large databases showed that this classification worked well with an accuracy of 99.525% by using distribution maps which are defined by two geometric features, relative size and relative position, with careful treatment on document-dependent characteristics.
- （社）電子情報通信学会の論文
- 2009-11-01
著者
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Suzuki Masakazu
Department Of Biology Faculty Of Science Shizuoka University
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UCHIDA Seiichi
Department of Biological Research, Division 2, Odawara Research Center, Nippon Soda, Co., Ltd.
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Suzuki Masakazu
Department Of Mathematics Kyushu University
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ALY Walaa
Department of Intelligent Systems, Kyushu University
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Uchida Seiichi
Department Of Intelligent Systems Kyushu University
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Uchida Seiichi
Department Of Biological Research Division 2 Odawara Research Center Nippon Soda Co. Ltd.
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Aly Walaa
Department Of Intelligent Systems Kyushu University
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Suzuki Masakazu
Department Of Applied Science Faculty Of Engineering 36 Kyushu University
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