The invention provides a fan-shaped strip based mirror plane defect detection system and method. The system includes strip projection equipment, an image acquisition device and a control module. The control module controls the strip projection equipment to project fan-shaped strips to a to-be-detected object. The image acquisition device is used for receiving a fan-shaped strip image reflected from the to-be-detected object and transmitting the acquired fan-shaped stirp image to the control module in a form of an image signal. The control module controls the strip projection equipment to output the fan-shaped strips by coding, decodes the fan-shaped strips acquired by the image acquisition device, solves a fan-shaped strip modulation degree by using data after decoding the fan-shaped strip image to obtain a gray-scale distribution map, and compares the data after decoding the gray-scale distribution map with the coded fan-shaped strip before output to obtain a modulation degree diagram and a defect display diagram that can observe defects.

Zhu Lixin

Papers

Fan-shaped strip based mirror plane defect detection system and method