Dimensional control non-contact mechanical parts based on Hough transformation in image processing
Jean Claude Mukaz Ilunga, Dany Katamba Mpoyi · 2019
Currently with the evolution of manufacturing technology such as high speed machining additive manufacturing... where mechanical parts are mass produced in industrial production, and the workload of traditional manual control is heavy and imprecise, the control efficiency is low, a contactless control system based on image processing is presented. The control system hardware includes a light source, optical microscope and computer, the control system adopts the transmitted illumination to highlight the contour function of mechanical parts. The pretreatment is first done to the image captured by the Matlab software, then threshold segmentation and edge contour extraction are conducted; and finally, to improve geometric element detection accuracy, which is based on the Hough transformation algorithm. The results show the validity of the method and the feasibility of the algorithm in the system, it improves the efficiency of the measuring system and performs the measurement in line without contact of mechanical parts.