基于综合特征的仪表盘参数符号识别技术研究

计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (16): 221-224.

基于综合特征的仪表盘参数符号识别技术研究

张艳玲^1,2,汪仁煌¹,黄宇华²

1.广东工业大学自动化学院，广州 510080
2.广州大学信息学院，广州 510006

收稿日期:2007-07-24 修回日期:2007-12-17 出版日期:2008-06-01 发布日期:2008-06-01
通讯作者: 张艳玲

Recognizing meter parameters symbols based on combined features

ZHANG Yan-ling^1,2,WANG Ren-huang¹,HUANG Yu-hua²

1.School of Automation，Guangdong University of Technology，Guangzhou 510080，China
2.School of Information，Guangzhou University，Guangzhou 510006，China

Received:2007-07-24 Revised:2007-12-17 Online:2008-06-01 Published:2008-06-01
Contact: ZHANG Yan-ling

摘要/Abstract

摘要： 仪表表盘参数符号识别的主要难点在于从仪表表盘中定位并切分出所需要的参数符号。采用图像处理和识别的方法，提出了基于字符的像素密度特征、中心点间距、连通域特征、对称性特征等综合特征，从拍摄的指针式仪表表盘图片中提取并分割出仪表盘的主要参数符号；再利用不变矩特征和支持向量机方法进行仪表表盘参数的识别。测试结果表明，这种综合特征方法实用有效。

Abstract: The main difficulty of recognizing meter parameters symbols is about locating and segmenting them from all the meter parameters.This paper uses image processing and recognition method and presents a new algorithm based on the symbols combined features of pixel density，characters center distance，connectivity and symmetry to segment main meter parameters symbols.The methods of unchanged moment feature and support vector machine are used to recognize parameters symbols.Experimental results show the combined features method works very well.

张艳玲^1,2,汪仁煌¹,黄宇华². 基于综合特征的仪表盘参数符号识别技术研究[J]. 计算机工程与应用, 2008, 44(16): 221-224.

ZHANG Yan-ling^1,2,WANG Ren-huang¹,HUANG Yu-hua². Recognizing meter parameters symbols based on combined features[J]. Computer Engineering and Applications, 2008, 44(16): 221-224.