LED显示仪表的字符识别方法

针对LED显示仪表，提出了一种字符识别方法。字符分割采用边缘检测、直线检测和灰度投影相结合的方法，可快速提取目标字符，将数字和小数点分开识别，并改进了基于数字笔画统计特征的自适应阈值数字识别方法。试验结果表明，本识别算法的识别率能达到95%以上，且算法耗时较低，说明此算法的准确率较高、实时性较好。

The Method of Character Recognition Displaying on LED

Aiming at LED display meter, put forward a character recognition method. Its character segmentation applied edge detection, line detection and gray projection to rapidly extract target character. It recognized number and decimal point separately and improves the self-adaptive threshold number recognition based on the statistical feature of numerical strikes. Experimental result indicates that the accuracy of the proposed recognition algorithm reaches over 95% and the time-consuming is short, which demonstrates the algorithm of high accuracy and good real-time.