标题：Research on Optical Feature Recognition Technology of Multiple Micro-holes
作者：Cai Huitao; Liu Yong
作者机构：[Cai Huitao; Liu Yong] Shandong Univ, Associated Engn Res Ctr Mech & Mechatron Equipmen, Weihai 264209, Peoples R China.
会议名称：3rd International Conference on Materials Science and Engineering (ICMSE 2014)
会议日期：JAN 24-26, 2014
来源：MATERIAL SCIENCE AND ADVANCED TECHNOLOGIES IN MANUFACTURING
关键词：Multiple micro-holes; Median filtering; Edge detection; Skeleton; extraction; Optical feature recognition
摘要：A rapid quality detection system for multiple micro-holes fabricated by electrochemical machining (ECM) is proposed by studying on the optical features of multiple micro-holes. First, the edge of multiple micro-holes is detected exactly with the digital image processing techniques. Second, the multiple micro-holes are recognized through image skeleton extraction and region segmentation algorithm. Then, the least square circle fit arithmetic; the new roundness measurement algorithm and the surface roughness measurement method are synthetically used in the processing of geometric feature recognition of each micro hole. Finally, the practical results prove that the rapid quality detection system is provided with a fast detection speed and high precision for meeting the quality inspection requirement of multiple micro-holes.