CN103946866B - 与直方图一起使用多层连接分量的文本检测 - Google Patents

与直方图一起使用多层连接分量的文本检测 Download PDF

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Publication number
CN103946866B
CN103946866B CN201280056944.XA CN201280056944A CN103946866B CN 103946866 B CN103946866 B CN 103946866B CN 201280056944 A CN201280056944 A CN 201280056944A CN 103946866 B CN103946866 B CN 103946866B
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China
Prior art keywords
histogram
ratio set
connection component
spatial bins
bins
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CN201280056944.XA
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English (en)
Chinese (zh)
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CN103946866A (zh
Inventor
S-H·蔡
V·帕拉梅斯瓦兰
R·格泽茨克祖克
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Nokia Technologies Oy
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Nokia Technologies Oy
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • 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
    • G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
    • 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
    • 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)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
CN201280056944.XA 2011-11-21 2012-10-17 与直方图一起使用多层连接分量的文本检测 Expired - Fee Related CN103946866B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/301,103 2011-11-21
US13/301,103 US8611662B2 (en) 2011-11-21 2011-11-21 Text detection using multi-layer connected components with histograms
PCT/FI2012/050994 WO2013076358A1 (en) 2011-11-21 2012-10-17 Text detection using multi-layer connected components with histograms

Publications (2)

Publication Number Publication Date
CN103946866A CN103946866A (zh) 2014-07-23
CN103946866B true CN103946866B (zh) 2018-06-01

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Family Applications (1)

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CN201280056944.XA Expired - Fee Related CN103946866B (zh) 2011-11-21 2012-10-17 与直方图一起使用多层连接分量的文本检测

Country Status (7)

Country Link
US (1) US8611662B2 (enExample)
EP (1) EP2783328B1 (enExample)
JP (1) JP5775225B2 (enExample)
KR (1) KR101617681B1 (enExample)
CN (1) CN103946866B (enExample)
IN (1) IN2014CN04624A (enExample)
WO (1) WO2013076358A1 (enExample)

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US9141874B2 (en) 2012-07-19 2015-09-22 Qualcomm Incorporated Feature extraction and use with a probability density function (PDF) divergence metric
US9047540B2 (en) 2012-07-19 2015-06-02 Qualcomm Incorporated Trellis based word decoder with reverse pass
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CN107688806B (zh) * 2017-08-21 2021-04-20 西北工业大学 一种基于仿射变换的自由场景文本检测方法
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Also Published As

Publication number Publication date
CN103946866A (zh) 2014-07-23
US20130129216A1 (en) 2013-05-23
EP2783328B1 (en) 2018-08-22
WO2013076358A1 (en) 2013-05-30
KR20140091762A (ko) 2014-07-22
JP2014531097A (ja) 2014-11-20
KR101617681B1 (ko) 2016-05-11
EP2783328A1 (en) 2014-10-01
EP2783328A4 (en) 2016-09-28
US8611662B2 (en) 2013-12-17
JP5775225B2 (ja) 2015-09-09
IN2014CN04624A (enExample) 2015-09-18

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