东南大学学报（自然科学版）2013，Vol.43Issue(z1)：153-157,5.DOI:10.3969/j.issn.1001-0505.2013.S1.032
一种有效的水表数字图像二次识别算法
An effective two-times recognition algorithm of meter digital image
摘要
Abstract
According to the digital identification problem of water meter in the remote meter reading system,an effective two-times recognition algorithm about meter digital images is proposed.Singlecharacter images are obtained through pretreatment on the meter image before recognition.Based on the idea of template matching,the algorithm first compares the character images to be recognized with the templates only on their effective information area to obtain the first recognition matching coefficient.Secondly,the second recognition matching coefficient is conducted on the basis of the digital character feature matching.Finally,the maximum sum of two matching coefficients is taken as the best matching.For half-word recognition,based on word-changing height template matching,the concept of matching weight is proposed.Combining the priori conditions that the upper and lower half-words are continuous,the half-word image to be recognized is compared with every template and the largest matching coefficient is taken as the best matching.The experimental results show that the proposed method achieves satisfactory results and it is simple and effective with high recognition rate.关键词
水表/图像处理/数字识别/模板匹配Key words
meter/ image processing/ digital identification/ template matching分类
信息技术与安全科学引用本文复制引用
高菊,叶桦..一种有效的水表数字图像二次识别算法[J].东南大学学报（自然科学版）,2013,43(z1):153-157,5.基金项目
国家自然科学基金资助项目(61175091). （61175091）
