| 一种联机手写算术表达式识别系统 |
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| 引用本文： | 姜寒,刘长松,李士阳,邹燕明.一种联机手写算术表达式识别系统[J].电子与信息学报,2010,32(5):1126-1130. |
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| 作者姓名： | 姜寒 刘长松 李士阳 邹燕明 |
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| 作者单位： | 1. 智能技术与系统国家重点实验室清华信息科学与技术国家实验室清华大学电子工程系,北京,100084
2. 诺基亚北京研究院多模态多媒体用户界面研究组,北京,100176 |
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| 基金项目： | 国家973计划项目(2007CB311004);;国家自然科学基金(60772049,60872086)资助课题 |
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| 摘 要： | 该文介绍了一个完整的联机手写算术表达式识别系统。在笔划分组与符号识别方面，采用预处理结合搜索的方法优化置信度函数；在结构分析方面，提出了一套全新的基于符号分级的算法，并利用三叉树这种数据结构存储识别结果。实验表明，对于书写较为整齐的算术表达式，此系统能够对较复杂的结构予以正确率较高的分析与识别。
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| 关 键 词： | 联机手写识别 算术表达式 结构分析 符号分级 |
| 收稿时间： | 2009-4-13 |
| 修稿时间： | 2009-11-25 |
An On-line Handwritten Arithmetic Expression Recognition System |
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| Jiang Han,Liu Chang-song,Li Shi-yang,Zou Yan-ming.An On-line Handwritten Arithmetic Expression Recognition System[J].Journal of Electronics & Information Technology,2010,32(5):1126-1130. |
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| Authors: | Jiang Han Liu Chang-song Li Shi-yang Zou Yan-ming |
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| Affiliation: | State Key Laboratory of Intelligent Technology and Systems, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China; Multimodal Multimedia User Interface, Nokia Research Centre, Beijing 100176, China |
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| Abstract: | In this paper a complete on-line handwritten arithmetic expression recognition system is introduced. During the process of stroke grouping and symbol recognition, pre-processing strategy and searching procedure are combined to optimize the confidence function. A novel structural analysis algorithm based on symbol ranking is described, and recognition results are stored in trinary trees as the data structure. Experiments show that relatively neatly written expressions with fairly complex structures can be analysed by this algorithm with a high correction rate. |
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| Keywords: | On-line handwriting recognition Arithmetic expressions Structural analysis Symbol ranking |
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