Automated Identification of Hidden Corrosion Based on the D-Sight Technique: A Case Study on a Military Helicopter

Hidden corrosion remains a significant problem during aircraft service, primarily because of difficulties in its detection and assessment. The non-destructive D-Sight testing technique is characterized by high sensitivity to this type damage an effective sensing tool for qualitative assessments hidden structures used numerous ground service entities. In paper, the authors demonstrated new approach automatic quantification based on image processing images periodic inspections. performance developed algorithm was results inspection Mi family military helicopter. nondimensional quantitative measurement introduced study confirmed effectiveness evaluation progression, which agreement with analysis made inspectors. This allows automation process supports inspectors evaluating extent progression corrosion.