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《Computer Engineering and Design》 2010-01
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Design and implementation of numeral instrument real-time digital recognition system

CUI Xing-chen1,DUAN Hui-chuan1,WANG Jin-ling1,LIU Ru-xi2(1.School of Information Science and Engineering,Shandong Normal University,Jinan 250014,China;2.Shandong Delutai Measurement Science and Technology Limited Company,Jinan 250014,China)  
To improve and optimize the numeral instrument digital recognition system,a new recognition and research method is proposed.Based on which a real-time automatic recognition system for digits on numeral meter displayed by seven-segment LED and LCD is de-signed.Firstly,some preprocessing algorithms are studied,such as image binarization,noise removing.Then,the recognition features are structured to recognize the digital images,which mainly include the number of labeled four-connected domain objects of the figure background and label matrix element distribution features.Finally,the system simulation model is established and simulated based on model-oriented technique and dynamic simulation software Simulink.Practical experiments show that the recognition rate is higher than 98.6%,which tells that the model and method are effective and practical.
【CateGory Index】: TP391.41
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