CN115589786A - 手绘图形识别方法、装置和系统，以及计算机可读存储介质 - Google Patents
手绘图形识别方法、装置和系统，以及计算机可读存储介质 Download PDFInfo
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- CN115589786A CN115589786A CN202180000861.8A CN202180000861A CN115589786A CN 115589786 A CN115589786 A CN 115589786A CN 202180000861 A CN202180000861 A CN 202180000861A CN 115589786 A CN115589786 A CN 115589786A
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- 238000000034 method Methods 0.000 title claims description 44
- 238000012567 pattern recognition method Methods 0.000 claims abstract description 37
- 238000003909 pattern recognition Methods 0.000 claims description 41
- 230000015654 memory Effects 0.000 claims description 20
- 238000005070 sampling Methods 0.000 claims description 13
- 238000004422 calculation algorithm Methods 0.000 claims description 5
- 238000013135 deep learning Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 238000013528 artificial neural network Methods 0.000 claims description 3
- 230000000306 recurrent effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 16
- 230000001788 irregular Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 230000006403 short-term memory Effects 0.000 description 1
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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
- G06V30/32—Digital ink
- G06V30/333—Preprocessing; Feature extraction
- G06V30/347—Sampling; Contour coding; Stroke extraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
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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
- G06V30/32—Digital ink
- G06V30/36—Matching; Classification
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- User Interface Of Digital Computer (AREA)
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Abstract
本公开涉及一种手绘图形识别方法、装置和系统，以及计算机可读存储介质。手绘图形识别方法包括：接收手绘图形的输入，输入包括笔划集合，笔划集合包括至少一个笔划，每个笔划包括多个轨迹点的信息序列，每个轨迹点的信息包括该轨迹点的坐标、书写时间；根据输入的笔划的坐标数据，确定笔划集合是否构成闭合图形；在笔划集合构成闭合图形的情况下，基于笔划的坐标数据，识别闭合图形的类别。
Description
PCT国内申请，说明书已公开。
Claims (37)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/088951 WO2022222096A1 (zh) | 2021-04-22 | 2021-04-22 | 手绘图形识别方法、装置和系统，以及计算机可读存储介质 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115589786A true CN115589786A (zh) | 2023-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180000861.8A Pending CN115589786A (zh) | 2021-04-22 | 2021-04-22 | 手绘图形识别方法、装置和系统，以及计算机可读存储介质 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20230351787A1 (zh) |
| CN (1) | CN115589786A (zh) |
| WO (1) | WO2022222096A1 (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116630994A (zh) * | 2023-07-19 | 2023-08-22 | 腾讯科技（深圳）有限公司 | 输入法中的笔势识别方法、相关装置和介质 |
| CN117315665A (zh) * | 2023-11-30 | 2023-12-29 | 上海又寸科技有限公司 | 一种基于原笔迹识别的题目自动批阅方法及系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944175B (zh) * | 2009-07-07 | 2013-01-30 | 华中师范大学 | 物理运动学实验的动态几何虚拟方法 |
| CN105117054B (zh) * | 2015-08-12 | 2018-04-17 | 珠海优特物联科技有限公司 | 一种手写输入的识别方法及系统 |
| CN105719328B (zh) * | 2016-01-19 | 2018-06-12 | 华中师范大学 | 一种手绘几何图形规范化方法及系统 |
| CN111626238B (zh) * | 2020-05-29 | 2023-08-04 | 京东方科技集团股份有限公司 | 文本识别方法、电子设备及存储介质 |
| CN111898593B (zh) * | 2020-09-29 | 2020-12-22 | 湖南新云网科技有限公司 | 一种几何图形的形状识别方法、装置、设备及存储介质 |
| CN112181207B (zh) * | 2020-10-30 | 2022-11-29 | 海信视像科技股份有限公司 | 一种显示设备及几何图形识别方法 |
-
2021
- 2021-04-22 US US17/636,629 patent/US20230351787A1/en active Pending
- 2021-04-22 WO PCT/CN2021/088951 patent/WO2022222096A1/zh unknown
- 2021-04-22 CN CN202180000861.8A patent/CN115589786A/zh active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116630994A (zh) * | 2023-07-19 | 2023-08-22 | 腾讯科技（深圳）有限公司 | 输入法中的笔势识别方法、相关装置和介质 |
| CN116630994B (zh) * | 2023-07-19 | 2023-10-20 | 腾讯科技（深圳）有限公司 | 输入法中的笔势识别方法、相关装置和介质 |
| CN117315665A (zh) * | 2023-11-30 | 2023-12-29 | 上海又寸科技有限公司 | 一种基于原笔迹识别的题目自动批阅方法及系统 |
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| Publication number | Publication date |
|---|---|
| WO2022222096A1 (zh) | 2022-10-27 |
| US20230351787A1 (en) | 2023-11-02 |
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