CN109993161B - 一种文本图像旋转矫正方法及系统 - Google Patents
一种文本图像旋转矫正方法及系统 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000007781 pre-processing Methods 0.000 claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims abstract description 13
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- 230000002159 abnormal effect Effects 0.000 claims description 9
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- 238000004220 aggregation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012015 optical character recognition Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
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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
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/242—Aligning, centring, orientation detection or correction of the image by image rotation, e.g. by 90 degrees
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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
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/243—Aligning, centring, orientation detection or correction of the image by compensating for image skew or non-uniform image deformations
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CN110826561A (zh) * | 2019-11-11 | 2020-02-21 | 上海眼控科技股份有限公司 | 车辆文本识别方法、装置和计算机设备 |
CN110866525A (zh) * | 2019-11-26 | 2020-03-06 | 深圳市信联征信有限公司 | 图像角度矫正方法、装置、计算机设备及存储介质 |
CN111368631A (zh) * | 2019-12-12 | 2020-07-03 | 重庆大学 | 一种基于深度学习的圆形表盘旋转矫正方法 |
CN112528776B (zh) * | 2020-11-27 | 2024-04-09 | 京东科技控股股份有限公司 | 文本行校正方法和装置 |
CN113420762B (zh) * | 2021-07-01 | 2024-02-06 | 京东科技控股股份有限公司 | 一种图像处理方法、系统、电子设备及存储介质 |
CN113421257A (zh) * | 2021-07-22 | 2021-09-21 | 凌云光技术股份有限公司 | 一种点阵字体文本行旋转校正方法及装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102831418A (zh) * | 2011-06-17 | 2012-12-19 | 汉王科技股份有限公司 | 手写体汉字倾斜矫正方法及装置 |
CN105426887A (zh) * | 2015-10-30 | 2016-03-23 | 北京奇艺世纪科技有限公司 | 一种文本图像校正的方法及装置 |
CN108681729A (zh) * | 2018-05-08 | 2018-10-19 | 腾讯科技(深圳)有限公司 | 文本图像矫正方法、装置、存储介质及设备 |
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CN101425142B (zh) * | 2008-09-17 | 2011-05-11 | 北大方正集团有限公司 | 页面倾斜角度的确定方法和装置 |
CN101447017B (zh) * | 2008-11-27 | 2010-12-08 | 浙江工业大学 | 一种基于版面分析的选票快速识别统计方法及系统 |
CN102073862B (zh) * | 2011-02-18 | 2013-04-17 | 山东山大鸥玛软件有限公司 | 一种快速的文档图像版面结构计算方法 |
US9275030B1 (en) * | 2014-09-30 | 2016-03-01 | Konica Minolta Laboratory U.S.A., Inc. | Horizontal and vertical line detection and removal for document images |
CN105868758B (zh) * | 2015-01-21 | 2019-12-17 | 阿里巴巴集团控股有限公司 | 图像中文本区域检测方法、装置及电子设备 |
CN105989366A (zh) * | 2015-01-30 | 2016-10-05 | 深圳市思路飞扬信息技术有限责任公司 | 文本图像的倾斜角矫正、版面分析方法和助视装置、系统 |
CN105761219B (zh) * | 2016-02-03 | 2019-03-15 | 北京云江科技有限公司 | 文本图像倾斜矫正方法和系统 |
CN107748888B (zh) * | 2017-10-13 | 2019-11-08 | 众安信息技术服务有限公司 | 一种图像文本行检测方法及装置 |
CN108171237A (zh) * | 2017-12-08 | 2018-06-15 | 众安信息技术服务有限公司 | 一种文本行图像单字切分方法和装置 |
CN109034165B (zh) * | 2018-07-06 | 2022-03-01 | 北京中安未来科技有限公司 | 一种证件图像的裁切方法、装置、系统及存储介质 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102831418A (zh) * | 2011-06-17 | 2012-12-19 | 汉王科技股份有限公司 | 手写体汉字倾斜矫正方法及装置 |
CN105426887A (zh) * | 2015-10-30 | 2016-03-23 | 北京奇艺世纪科技有限公司 | 一种文本图像校正的方法及装置 |
CN108681729A (zh) * | 2018-05-08 | 2018-10-19 | 腾讯科技(深圳)有限公司 | 文本图像矫正方法、装置、存储介质及设备 |
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