Shearing speckle interference video image multi-defect fusion method

• Main Authors: WU RONG, WANG JIANWEI, ZHOU JIANMIN, LIU RUIPENG, LI BIN, LIU YANDE
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to a shear speckle interference video image multi-defect fusion method, which comprises the following steps of: constructing a shear speckle interference nondestructive testing system, acquiring a phase image containing defects, and establishing a defect identification model and a defect skeleton extraction model; dynamically acquiring a defect phase image in a detected object by using a shear speckle interference nondestructive testing system, and performing defect automatic identification on each frame of image in a phase image video by using a defect identification model so as to obtain a defect sub-image in each frame of image; inputting the defect sub-image into a skeleton line extraction model to obtain a skeleton line image of the defect sub-image; and comprehensively evaluating the quality of the defect sub-image according to the number of skeleton lines of the defect sub-image and the mean square error, selecting the high-quality defect sub-image at each defect position in the d