JP5754065B2 - 光学文字認識されるテキスト画像のテキスト解像度の改善方法及びシステム - Google Patents

光学文字認識されるテキスト画像のテキスト解像度の改善方法及びシステム Download PDF

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JP5754065B2
JP5754065B2 JP2012557155A JP2012557155A JP5754065B2 JP 5754065 B2 JP5754065 B2 JP 5754065B2 JP 2012557155 A JP2012557155 A JP 2012557155A JP 2012557155 A JP2012557155 A JP 2012557155A JP 5754065 B2 JP5754065 B2 JP 5754065B2
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JP2013527513A5 (enExample
JP2013527513A (ja
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ガーリック，ササ
ニジェムセヴィック，ジョルジェ
ドレセヴィック，ボーダン
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/457—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by analysing connectivity, e.g. edge linking, connected component analysis or slices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/1801—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections
    • G06V30/18076—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections by analysing connectivity, e.g. edge linking, connected component analysis or slices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V2201/00—Indexing scheme relating to image or video recognition or understanding
    • G06V2201/01—Solutions for problems related to non-uniform document background
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Character Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
JP2012557155A 2010-03-10 2011-03-07 光学文字認識されるテキスト画像のテキスト解像度の改善方法及びシステム Active JP5754065B2 (ja)

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US12/720,732 US8526732B2 (en) 2010-03-10 2010-03-10 Text enhancement of a textual image undergoing optical character recognition
US12/720,732 2010-03-10
PCT/US2011/027439 WO2011112522A2 (en) 2010-03-10 2011-03-07 Text enhancement of a textual image undergoing optical character recognition

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JP2013527513A JP2013527513A (ja) 2013-06-27
JP2013527513A5 JP2013527513A5 (enExample) 2014-03-20
JP5754065B2 true JP5754065B2 (ja) 2015-07-22

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US (1) US8526732B2 (enExample)
EP (1) EP2545499B1 (enExample)
JP (1) JP5754065B2 (enExample)
KR (1) KR101795823B1 (enExample)
CN (1) CN102782706B (enExample)
CA (1) CA2790402A1 (enExample)
ES (1) ES2773719T3 (enExample)
WO (1) WO2011112522A2 (enExample)

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CN102782706A (zh) 2012-11-14
KR20130016213A (ko) 2013-02-14
EP2545499A4 (en) 2017-08-30
EP2545499A2 (en) 2013-01-16
WO2011112522A2 (en) 2011-09-15
CN102782706B (zh) 2014-07-23
US20110222768A1 (en) 2011-09-15
CA2790402A1 (en) 2011-09-15
EP2545499B1 (en) 2020-01-08
WO2011112522A3 (en) 2011-11-03
KR101795823B1 (ko) 2017-11-08
ES2773719T3 (es) 2020-07-14
US8526732B2 (en) 2013-09-03
JP2013527513A (ja) 2013-06-27

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