JP5211050B2 - 2段階テキスト認識 - Google Patents
2段階テキスト認識 Download PDFInfo
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- JP5211050B2 JP5211050B2 JP2009522761A JP2009522761A JP5211050B2 JP 5211050 B2 JP5211050 B2 JP 5211050B2 JP 2009522761 A JP2009522761 A JP 2009522761A JP 2009522761 A JP2009522761 A JP 2009522761A JP 5211050 B2 JP5211050 B2 JP 5211050B2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/22—Character recognition characterised by the type of writing
- G06V30/226—Character recognition characterised by the type of writing of cursive writing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/26—Techniques for post-processing, e.g. correcting the recognition result
- G06V30/262—Techniques for post-processing, e.g. correcting the recognition result using context analysis, e.g. lexical, syntactic or semantic context
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
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- Computational Linguistics (AREA)
- Artificial Intelligence (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bioinformatics & Computational Biology (AREA)
- Data Mining & Analysis (AREA)
- Evolutionary Biology (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Character Discrimination (AREA)
Description
Claims (16)
- テキスト認識を容易にするシステムであって、
前記テキストと関連付けられた言語の結合ルールに基づいてあらかじめ定義された単語グループを認識する単語グループコンポーネントであって、前記結合ルールは、アラビア言語の結合ルール(PAW)を定義し、前記単語グループコンポーネントは、前記単語グループ間の水平な重複に基づいて前記単語グルーブにラベル付けし、前記テキストのアスペクト比を維持しながら、固定された格子寸法に合うように前記テキストを拡大縮小する第1分類器と、前記PAWを構成する結合文字の特徴に基づいた第2分類器とを用いて、前記テキストから特徴を抽出して前記テキストの前記単語グループを認識すること、
前記単語グループを形成する構成文字を認識する文字コンポーネントであって、前記単語グループコンポーネントと実質的に同時に前記構成文字を認識して、前記単語グループを認識する文字コンポーネントと
を備えたことを特徴とするシステム。 - 前記文字コンポーネントは、前記構成文字が前記文字コンポーネントにより不明瞭とみなされたとき、ユーザ専用のポストプロセッサ技術を用いて、前記構成文字を認識することを特徴とする請求項1に記載のシステム。
- 前記単語グループコンポーネントおよび前記文字コンポーネントは、ニューラルネットを基礎とすることを特徴とする請求項1に記載のシステム。
- 異字体データと関連付けられた分類器を訓練する個性化コンポーネントをさらに備えたことを特徴とする請求項1に記載のシステム。
- 前記異字体データは、手書きの異字体データを含むことを特徴とする請求項4に記載のシステム。
- 前記個性化コンポーネントは、書き手に依存しない筆跡を、ユーザの個性化した手書きに変換する適応機能を含むことを特徴とする請求項4に記載のシステム。
- 前記ユーザ専用のポストプロセッサ技術は、密度モデルに適応された最大尤度線形回帰(MLLR)を用いることを特徴とする請求項2に記載のシステム。
- 前記単語グループコンポーネントは、ビーム探索機能を用いて、前記単語グループを認識することを特徴とする請求項1に記載のシステム。
- 前記個性化コンポーネントは、文字の出現に対する確率を提供するマッピング機能を含むことを特徴とする請求項6に記載のシステム。
- テキストを認識する方法であって、
テキスト入力を、前記テキスト入力の言語に対する結合ルールに基づいてつながった、あらかじめ定義された結合文字グループと比較して、前記テキスト入力の結合文字を認識すること、および、前記テキスト入力と前記あらかじめ定義された結合文字グループを形成する1または複数の構成文字と比較することを同時に実行すること、
前記結合文字間の水平な重複に基づいて前記テキスト入力の前記結合文字にラベル付けすること、および
前記テキスト入力のアスペクト比を維持しながら固定された格子寸法に合うように前記テキストを拡大縮小する第1分類器と、前記結合文字の特徴に基づいた第2分類器とを用いて、前記テキスト入力から特徴を抽出して前記テキスト入力の前記結合文字を認識すること
を備えたことを特徴とする方法。 - ビタビ探索法を用いることをさらに備え、前記ビタビ探索法は、2つの構成文字間の編集距離を決定することを含むことを特徴とする請求項10に記載の方法。
- 上部分割シナリオを決定することをさらに備えたことを特徴とする請求項10に記載の方法。
- 異字体データに基づいて分類器を訓練することをさらに備えたことを特徴とする請求項10に記載の方法。
- 前記訓練動作に基づいて筆跡認識を最適化することをさらに備えたことを特徴とする請求項13に記載の方法。
- 一般的な手書きを、個性化した筆跡に変換することをさらに備えたことを特徴とする請求項14に記載の方法。
- 文字のマッピングに基づいて、文字を特定の様式に一致させることをさらに備えたことを特徴とする請求項15に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/461,050 | 2006-07-31 | ||
US11/461,050 US7724957B2 (en) | 2006-07-31 | 2006-07-31 | Two tiered text recognition |
PCT/US2007/015214 WO2008016454A1 (en) | 2006-07-31 | 2007-06-28 | Two tiered text recognition |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009545807A JP2009545807A (ja) | 2009-12-24 |
JP5211050B2 true JP5211050B2 (ja) | 2013-06-12 |
Family
ID=38986369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009522761A Expired - Fee Related JP5211050B2 (ja) | 2006-07-31 | 2007-06-28 | 2段階テキスト認識 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7724957B2 (ja) |
EP (1) | EP2047409B1 (ja) |
JP (1) | JP5211050B2 (ja) |
KR (1) | KR101312804B1 (ja) |
CN (1) | CN101496036B (ja) |
CA (1) | CA2654893C (ja) |
IL (1) | IL196017A (ja) |
WO (1) | WO2008016454A1 (ja) |
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2006
- 2006-07-31 US US11/461,050 patent/US7724957B2/en not_active Expired - Fee Related
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2007
- 2007-06-28 JP JP2009522761A patent/JP5211050B2/ja not_active Expired - Fee Related
- 2007-06-28 CA CA2654893A patent/CA2654893C/en not_active Expired - Fee Related
- 2007-06-28 WO PCT/US2007/015214 patent/WO2008016454A1/en active Application Filing
- 2007-06-28 CN CN2007800284942A patent/CN101496036B/zh not_active Expired - Fee Related
- 2007-06-28 EP EP07835943.7A patent/EP2047409B1/en not_active Not-in-force
- 2007-06-28 KR KR1020097001577A patent/KR101312804B1/ko not_active IP Right Cessation
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2008
- 2008-12-18 IL IL196017A patent/IL196017A/en active IP Right Revival
Also Published As
Publication number | Publication date |
---|---|
KR20090035541A (ko) | 2009-04-09 |
KR101312804B1 (ko) | 2013-09-27 |
IL196017A (en) | 2012-02-29 |
IL196017A0 (en) | 2009-09-01 |
CN101496036B (zh) | 2012-09-19 |
EP2047409B1 (en) | 2015-12-09 |
EP2047409A1 (en) | 2009-04-15 |
CA2654893A1 (en) | 2008-02-07 |
CN101496036A (zh) | 2009-07-29 |
WO2008016454A1 (en) | 2008-02-07 |
US20080025610A1 (en) | 2008-01-31 |
EP2047409A4 (en) | 2013-03-27 |
JP2009545807A (ja) | 2009-12-24 |
US7724957B2 (en) | 2010-05-25 |
CA2654893C (en) | 2014-10-07 |
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