包玉树,黄亚龙,孙军,胡永建,吴剑

• 1:东南大学电气工程学院
• 2:江苏方天电力技术有限公司
• 3:武汉磐电科技股份有限公司

摘要(Abstract)：

针对数字仪表校验人工读取数据时存在的误差问题,提出一种基于多特征与局部线性嵌入算法(LLE)结合的数字仪表校验方法。首先将字符图像从RGB转换到HSI色彩空间,在I空间对图像进行分割,并利用投影法分割出单个字符;然后对字符图像提取结构特征,由于单纯的结构特征对字符的描述不足,导致识别精度较低,故文中利用LLE算法对字符二值图像降维,将降维后的像素特征与结构特征相结合;最后,利用支持向量机(SVM)对字符特征进行识别。实验结果显示,所提方法提高了校验系统的字符识别率。

关键词(KeyWords)： 数字仪表;校验系统;结构特征;LLE算法;图像处理;降维

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 包玉树,黄亚龙,孙军,胡永建,吴剑

DOI: 10.16652/j.issn.1004-373x.2018.24.003

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