Research on an Automatic Counting Method for Steel Bars' Image
Ying Xin, Xue Wei, Yuan Pei-xin, Han Qing-da, Changhai Chen · 2010
A method for automatic segmentation of steel bars' image is put forward to solve the counting problems of steel bars in the steel factories at present. The approximate radius of steel bar is measured by chain coding. The edges of steel bars are detected by Sobel operator, and separation of steel bars and background is carried out by Otsu method. Then the improved Hough transformation is adopted in the image of steel bars in order to accumulate the gray values, and the locations of steel bars are got by the threshold segmentation, then max. gray values in a region are founded. After experiments, the accurate counting method of approximate circle images such as steel bars is realized.