CN111353961B - 一种文档曲面校正方法及装置 - Google Patents
一种文档曲面校正方法及装置 Download PDFInfo
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- CN111353961B CN111353961B CN202010172453.8A CN202010172453A CN111353961B CN 111353961 B CN111353961 B CN 111353961B CN 202010172453 A CN202010172453 A CN 202010172453A CN 111353961 B CN111353961 B CN 111353961B
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- 238000000034 method Methods 0.000 title claims abstract description 130
- 238000012937 correction Methods 0.000 title claims abstract description 124
- 238000001514 detection method Methods 0.000 claims description 31
- 238000005070 sampling Methods 0.000 claims description 28
- 230000009466 transformation Effects 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 238000012549 training Methods 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 8
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 5
- 238000005457 optimization Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
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- 238000012216 screening Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
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Classifications
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- G06T5/80—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/13—Edge detection
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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
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
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- 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
- G06V30/14—Image acquisition
- G06V30/146—Aligning or centring of the image pick-up or image-field
- G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
- G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
Abstract
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Priority Applications (1)
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CN202010172453.8A CN111353961B (zh) | 2020-03-12 | 2020-03-12 | 一种文档曲面校正方法及装置 |
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CN202010172453.8A CN111353961B (zh) | 2020-03-12 | 2020-03-12 | 一种文档曲面校正方法及装置 |
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CN111353961A CN111353961A (zh) | 2020-06-30 |
CN111353961B true CN111353961B (zh) | 2023-12-19 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112036294B (zh) * | 2020-08-28 | 2023-08-25 | 山谷网安科技股份有限公司 | 一种纸质表格结构自动识别的方法及装置 |
CN112418204A (zh) * | 2020-11-18 | 2021-02-26 | 杭州未名信科科技有限公司 | 基于纸质文档的文本识别方法、系统及计算机介质 |
CN112560867B (zh) * | 2020-12-09 | 2023-11-21 | 上海肇观电子科技有限公司 | 文本图像的矫正方法及装置、设备和介质 |
CN114943705B (zh) * | 2022-05-27 | 2024-02-02 | 宁波艾腾湃智能科技有限公司 | 一种附着于变形基底的平面作品或制品的图像数据采集方法 |
CN117877051A (zh) * | 2022-10-12 | 2024-04-12 | 华为终端有限公司 | 一种文档检测矫正方法及终端 |
Citations (7)
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---|---|---|---|---|
CN101064007A (zh) * | 2006-04-29 | 2007-10-31 | 北大方正集团有限公司 | 一种表格图像几何畸变的数字校正方法 |
CN102084378A (zh) * | 2008-05-06 | 2011-06-01 | 计算机连接管理中心公司 | 基于照相机的文档成像 |
CN102147863A (zh) * | 2010-02-10 | 2011-08-10 | 中国科学院自动化研究所 | 一种网络动画中的文字定位及识别方法 |
CN102208025A (zh) * | 2011-05-27 | 2011-10-05 | 中国科学院自动化研究所 | 一种文本图像几何畸变的矫正方法 |
CN102592124A (zh) * | 2011-01-13 | 2012-07-18 | 汉王科技股份有限公司 | 文本图像的几何校正方法、装置和双目立体视觉系统 |
CN107798355A (zh) * | 2017-11-17 | 2018-03-13 | 山西同方知网数字出版技术有限公司 | 一种基于文档图像版式自动分析与判断的方法 |
CN108921804A (zh) * | 2018-07-04 | 2018-11-30 | 苏州大学 | 扭曲文档图像的校正方法 |
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2020
- 2020-03-12 CN CN202010172453.8A patent/CN111353961B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101064007A (zh) * | 2006-04-29 | 2007-10-31 | 北大方正集团有限公司 | 一种表格图像几何畸变的数字校正方法 |
CN102084378A (zh) * | 2008-05-06 | 2011-06-01 | 计算机连接管理中心公司 | 基于照相机的文档成像 |
CN102147863A (zh) * | 2010-02-10 | 2011-08-10 | 中国科学院自动化研究所 | 一种网络动画中的文字定位及识别方法 |
CN102592124A (zh) * | 2011-01-13 | 2012-07-18 | 汉王科技股份有限公司 | 文本图像的几何校正方法、装置和双目立体视觉系统 |
CN102208025A (zh) * | 2011-05-27 | 2011-10-05 | 中国科学院自动化研究所 | 一种文本图像几何畸变的矫正方法 |
CN107798355A (zh) * | 2017-11-17 | 2018-03-13 | 山西同方知网数字出版技术有限公司 | 一种基于文档图像版式自动分析与判断的方法 |
CN108921804A (zh) * | 2018-07-04 | 2018-11-30 | 苏州大学 | 扭曲文档图像的校正方法 |
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