Application of composite field imaging in strip surface quality inspection

摘要

In strip surface quality inspection systems based on the machine vision detection technology,image quality is a key factor affecting the final detection performance.Composite imaging methods,such as bright and dark field imaging or reflection and transmission imaging,can reveal more information by emphasizing different image aspects.Defect detection rates and defect recognition accuracy can be improved by integrating and matching information from different image acquisition settings.Practical application shows that transmission and reflection composite imaging can improve the imaging quality of penetrative defects,whtle bright and dark field composite imaging can enhance imaging of defects such as color deviation and stains.