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计算机工程 ›› 2010, Vol. 36 ›› Issue (7): 182-184. doi: 10.3969/j.issn.1000-3428.2010.07.062

• 人工智能及识别技术 • 上一篇    下一篇

基于二级复合链码的七段数字识别方法

于国防,王 莉   

  1. (中国矿业大学信息与电子工程学院,徐州 221008)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-04-05 发布日期:2010-04-05

Seven-segment Digit Recognition Method Based on Secondary Compound Chain Code

YU Guo-fang, WANG Li   

  1. (School of Information and Electronic Engineering, China University of Mining and Technology, Xuzhou 221008)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-05 Published:2010-04-05

摘要: 针对动态数字图像的识别问题,提出基于二级复合链码的七段数字识别方法。对细化后的目标图像进行第1级8方向Freeman链码描述,在此基础上,进行第2级4方向Freeman链码描述,得到的复合链码与七段数字具有单一映射关系。在无线瓦斯检测系统中的应用结果表明,该方法具有较高的识别率和执行效率。

关键词: 链码, 二级复合链码, 七段数字, 图像细化, 数字识别

Abstract: Aiming at the recognition problem of dynamic digit image, this paper proposes seven-segment digit recognition method based on secondary compound chain code. The first level 8-direction Freeman chain code description is carried on the thinned object image. On the basis of this, the second level 4-direction Freeman chain code description is continued. It can make the sole mapping relationship between the obtained compound code and the described seven-segment digit. Application result in a wireless gas monitoring system shows that this method has high recognition ratio and high processing efficiency.

Key words: chain code, secondary compound chain code, seven-segment digit, image thinning, digit recognition

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