Remote detection method of concrete bridge surface cracks based on digital image

Depan Lian

doi:10.1117/12.2615591

10 November 2021 Remote detection method of concrete bridge surface cracks based on digital image

Depan Lian

Proceedings Volume 12050, International Conference on Smart Transportation and City Engineering 2021; 120505S (2021) https://doi.org/10.1117/12.2615591
Event: 2021 International Conference on Smart Transportation and City Engineering, 2021, Chongqing, China

Abstract

The existing detection methods have the problem of incomplete image calibration perspective, resulting in short extension distance. A long-distance detection method of concrete bridge surface cracks based on digital image is designed. The pixel coordinate system is established, the image brightness value is discretized, the image calibration angle is corrected, the edges on both sides of the square are extracted, the edge information is obtained by a single scale, and the long-distance high-pointing acoustic excitation model is constructed. According to the theory of subpixel edge detection, the detection range threshold of digital image is set. Experimental results: the average extension distances between the designed concrete bridge surface crack remote detection method and the other two detection methods are 62.745cm, 50.966cm and 48.960cm, indicating that the detection method integrating the characteristics of digital image technology has higher application value.

Citation Download Citation

Depan Lian "Remote detection method of concrete bridge surface cracks based on digital image", Proc. SPIE 12050, International Conference on Smart Transportation and City Engineering 2021, 120505S (10 November 2021); https://doi.org/10.1117/12.2615591

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available