Research on Tilted Defect Detection Technology of Transmission Line Fitting Inspection Image
Aiming at the problems of difficult angle quantification and strong subjectivity in determination of tilted defect of fitting in the current UAV inspection image of transmission line,the tilted defect detection technology of fitting tilted class is proposed by integrating Multi-scale Residual Network.Through the combination of center point coordinates and rotation angle to represent the directed bounding box,the effective quantification of the tilted angle of the equipment is realized.The angle regression is used to improve the detection sensitivity of the tilted anchor box,and to realize the identification and precise positioning of the tilted defect in transmission line.After on-site verification,the detection accuracy of clamp offset defect is increased from 86.2%to 95.02%,the detection accuracy of grading ring tilted defect is increased from 87.76%to 98.11%,and the detection accuracy of insulator tilted defect is increased from 85.34%to 96.12%,which meets the requirements of on-site application.
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