### 抜粋

There are many problems to realize camera-based character recognition. One of the problems is that characters in scenes are often distorted by geometric transformations such as affine distortions. Although some methods that remove the affine distortions have been proposed, they cannot remove a rotation transformation of a character. Thus a skew angle of a character has to be determined by examining all the possible angles. However, this consumes quite a bit of time. In this paper, in order to reduce the processing time for an affine invariant recognition, we propose a set of affine invariant features and a new recognition scheme called "progressive pruning." The progressive pruning gradually prunes less feasible categories and skew angles using multiple classifiers. We confirmed the progressive pruning with the affine invariant features reduced the processing time at least less than half without decreasing the recognition rate.

元の言語 | 英語 |
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ホスト出版物のタイトル | DAS 2008 - Proceedings of the 8th IAPR International Workshop on Document Analysis Systems |

ページ | 237-244 |

ページ数 | 8 |

DOI | |

出版物ステータス | 出版済み - 12 22 2008 |

イベント | 8th IAPR International Workshop on Document Analysis Systems, DAS 2008 - Nara, 日本 継続期間: 9 16 2008 → 9 19 2008 |

### 出版物シリーズ

名前 | DAS 2008 - Proceedings of the 8th IAPR International Workshop on Document Analysis Systems |
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### その他

その他 | 8th IAPR International Workshop on Document Analysis Systems, DAS 2008 |
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国 | 日本 |

市 | Nara |

期間 | 9/16/08 → 9/19/08 |

### All Science Journal Classification (ASJC) codes

- Computer Science Applications
- Information Systems

## フィンガープリント Affine invariant recognition of characters by progressive pruning' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*DAS 2008 - Proceedings of the 8th IAPR International Workshop on Document Analysis Systems*(pp. 237-244). [4669966] (DAS 2008 - Proceedings of the 8th IAPR International Workshop on Document Analysis Systems). https://doi.org/10.1109/DAS.2008.88