A learning pseudo bayes discriminant method based on difference distribution of feature vectors

Hiroaki Takebe, Koji Kurokawa, Yutaka Katsuyama, Satoshi Naoi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We developed a learning pseudo Bayes discriminant method, that dynamically adapts a pseudo Bayes discriminant function to a font and image degradation condition present in a text. In this method, the characteristics of character pattern deformations are expressed as a statistic of a difference distribution, and information represented by the difference distribution is integrated into the pseudo Bayes discriminant function. The formulation of integrating the difference distribution into the pseudo Bayes discriminant function results in that a covariance matrix of each category is adjusted based on the difference distribution. We evaluated the proposed method on multi-font texts and degraded texts such as compressed color images and faxed copies. We found that the recognition accuracy of our method for the evaluated texts was much higher than that of conventional methods.

本文言語English
ホスト出版物のタイトルDocument Analysis Systems V - 5th International Workshop, DAS 2002, Proceedings
編集者Jianying Hu, Ramanujan Kashi, Daniel Lopresti
出版社Springer Verlag
ページ134-144
ページ数11
ISBN(印刷版)3540440682, 9783540440680
出版ステータスPublished - 2002
外部発表はい
イベント5th International Workshop on Document Analysis Systems, DAS 2002 - Princeton, United States
継続期間: 2002 8月 192002 8月 21

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2423
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Conference

Conference5th International Workshop on Document Analysis Systems, DAS 2002
国/地域United States
CityPrinceton
Period02/8/1902/8/21

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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