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《Transducer and Microsystem Technologies》 2009-06
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Rapid detection system of multiple micro holes based on digital image processing technology

ZHANG Jian-jian,ZHU Di,LI Han-song(Jiangsu Key Laboratory of precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China)  
Traditional detection methods of micro holes mainly aim at detecting single hole,and have a low lever of efficiency when applied in detecting multiple micro holes.A rapid detection system for multiple micro holes based on digital image processing technology is developed.The multiple micro holes are recognized through image skeleton extraction and pattern matching algorithm.The minimum zone method is used to obtain the diameter and the roundness of each hole,and the information of circle degree is employed to distinguish the shape of each hole.Experiments show that the system is provided with a fast detection speed and enough precision for meeting the production requirements,and suitable for rapid detection of multiple micro holes.
【Fund】: 国家自然科学基金重点资助项目(50635040)
【CateGory Index】: TP274.4
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