Development and Application of Concrete Inspection and Diagnostic Analysis System with Infrared and Visible Images
By M. Kubo, I. Amano and S. Nakayama
Concrete Journal, Vol.52, No.8, Aug. 2014
- Synopsis
- The inspection of social infrastructure facilities currently relies on close visual inspection and tapping inspection by inspectors. However, these methods present a number of issues, including the fact that they produce discrepant diagnostic outcomes owing to differences in the experience and ability of inspectors and diagnostic engineers, and require complex data organization and plotting processes. To overcome such challenges, a non-contact inspection and diagnosis system was developed that allows the efficient identification of cracks and surface degradation such as lifting and peeling of structures through continuous and simultaneous acquisition of infrared images and visible images of the target concrete structure and image analysis of the combined images. Further, this system was applied to railway tunnels, road tunnels, and concrete walls.
- Keywords:
- nondestructive inspection, infrared image, passive method, visible image, image analysis
