Design of Integreted Measurement System for Thread Parameters Based on Machine Vision

The traditional detection technology of thread has complex processes,low efficiency and high cost, which can not meet the needs of the efficient development of modern industry.So a system of visual sensing and image processing with machine vision recognition technology as the core must be built.CCD is used to obtain the basic image of thread.Through the image smoothing,edge detection,binarization processing and contour extraction,and analyzing the processed image,the geometrical parameters are calculated.The method of measuring thread angle parameter which uses machine vision,and the measurement result are given.The feasibility and correctness of the method are proved theoretically and practically.