Research on Detection of Micro Plastic Gear Tooth Based on Dummy Circle Scan Method

摘要

The quality of micro plastic gears was inspected with the image recognition technology herein. Focusing on the situation that gears' defects were uncertain, the construction of computer vision system and the theories, technologies of digital image acquisition, image preprocessing, image segmentation as well as the sub-pixel location theory were studied thoroughly. A dummy circle scan method is presented to realize the gear tooth inspection, and the results indicate that it can meet request on the automatic inspection of micro plastic gears.