Surface defect detection competition with a bio-inspired vision sensor

INTRODUCTION Surface defects are inevitable during the product manufacturing process,such as impurities,scratches and dirt.D efects not only reduce the aesthetics and comfort of products,but may also degrade the functional performance.Manufacturers are very concerned about inadequate defect detection because of potential economic and reputation losses.Thus,it is significant to study automatic defect detection methods.Existing machine vision-based defect detection mostly adopts a traditional CCD or CMOS vision sensor (VS) for imaging.However,in real-world production lines,due to dynamic environments,traditional VS encounters difficulties in meeting the demands of defect detection,especially in modern high-precision product manufacturing.