基于旋转校正和滑动窗口定位的智能仪表字符识别  

Character Recognition of Intelligent Instrument Based on Rotation Correction and Sliding Window Location

作　　者：刘爽[1,2] 崔国光[1] 刘同海 于舒春[1] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,哈尔滨150080 [2]中国联通哈尔滨市分公司,哈尔滨150001

出　　处：《电测与仪表》2013年第6期20-23,共4页Electrical Measurement & Instrumentation

摘　　要：智能仪表已经在生产生活的各个领域得到了广泛应用。尤其是通过和远程监控技术的配合,可以有效地解决危险区域工作人员无法进入的难题。在智能仪表字符识别的各项技术中,本文重点研究了字符区域倾斜和字符定位问题。对于倾斜问题,采用了基于透视投影变换理论的旋转校正方法;对于定位问题,设计了基于滑动窗口灰度比对的定位方法。实验结果表明,本文提出的方法有效地解决了倾斜问题和字符定位问题,适用于智能仪表的字符识别。Intelligent instrument has been widely used in various fields of life and production.When it was used with monitoring technology,the problem of measuring dangerous area can be solved efficiently.In this paper,character tilt and location were brought into focus.To solve tilt problem,rotation correction method was proposed based on the theory of perspective projection transformation.To solve location problem,sliding window method was proposed by using gray comparison.Experimental results show that these two methods can solve character tilt and location problem in character recognition of intelligent instrument.

关 键 词：智能仪表 字符识别 旋转校正 滑动窗口 

分 类 号：TM933[电气工程—电力电子与电力传动]