Research and Development of Micro-Hole Quality Detecting System Based on Machine Vision

Hui Tao Cai; Qiu Ju Xiong; Yong Liu

doi:10.4028/www.scientific.net/AMR.694-697.1902

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Research and Development of Micro-Hole Quality Detecting System Based on Machine Vision
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 694-697Research and Development of Micro-Hole Quality...

Research and Development of Micro-Hole Quality Detecting System Based on Machine Vision

Abstract:

An effective approach of quality inspection for micro hole is proposed by studying on the geometric feature of micro hole edge. The edge of micro hole is detected exactly with the digital image processing techniques, such as, the median filter, the threshold value transformation, and so on. The least square circle fit arithmetic and a new roundness measurement arithmetic are synthetically used in the processing of geometric feature recognition of micro hole. The practical results prove that the method with exact conclusion and high precision can satisfy the quality inspection requirement of micro hole.