Ultrasonic testing (UT) is the one of most reliable methods to examine the serviceability of structural component, such as weld works, the composite light weight material and structure in aircraft and building structure.
However, ultrasonic testing is a manual task which is labor-intensive and time-consuming. The discontinuities and defects are usually no specific shapes, positions, and orientations. In fact, only skilled operators and qualified inspectors are certified to perform inspection and evaluation.
In order to achieve the strict standard of aircraft industrial and improve the current inspection procedure, a new ultrasonic inspection system with image analysis function using Single Shot MultiBox Detector (SSD) network and computer vision approach will be designed and developed to assist the inspector to improve the efficiency and accuracy for identifying the defect from interpreting the ultrasonic scanning image and reduce inspectors workload. A scanning system with objection detection function is applied on ultrasonic testing (UT) discontinuity indication.