Swage hole inspection using hough transform
Orathai Suttijak · Asia-Pacific Journal of Science and Technology · 2017
In the quality control section of the hard disk drive industrials, one of the important tasks is the dimension measurement. One of the parts that are needed to be measured is a swage hole that has circular shape. Since an accurate measurement is needed, a microscope is used to capture the swage hole. In this paper, we utilized the Hough transform to measure the swage hole. To show the accuracy of the method, we compute the Hough transform on two different data sets, i.e., a synthetic data set and a real-world data set. The results show that the average error is 0.25 pixels for the synthetic data set whereas it is 6.66 micrometers for the realworld data set.