Improved imaging algorithm for bridge crack detection

Jingxiao Lu; Pingli Song; Kaihong Han

doi:10.1117/12.946056

2 June 2012 Improved imaging algorithm for bridge crack detection

Jingxiao Lu, Pingli Song, Kaihong Han

Proceedings Volume 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012); 83340P (2012) https://doi.org/10.1117/12.946056
Event: Fourth International Conference on Digital Image Processing (ICDIP 2012), 2012, Kuala Lumpur, Malaysia

Abstract

This paper present an improved imaging algorithm for bridge crack detection, through optimizing the eight-direction Sobel edge detection operator, making the positioning of edge points more accurate than without the optimization, and effectively reducing the false edges information, so as to facilitate follow-up treatment. In calculating the crack geometry characteristics, we use the method of extracting skeleton on single crack length. In order to calculate crack area, we construct the template of area by making logical bitwise AND operation of the crack image. After experiment, the results show errors of the crack detection method and actual manual measurement are within an acceptable range, meet the needs of engineering applications. This algorithm is high-speed and effective for automated crack measurement, it can provide more valid data for proper planning and appropriate performance of the maintenance and rehabilitation processes of bridge.

Citation Download Citation

Jingxiao Lu, Pingli Song, and Kaihong Han "Improved imaging algorithm for bridge crack detection", Proc. SPIE 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012), 83340P (2 June 2012); https://doi.org/10.1117/12.946056

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