A reconstruction method based on guided wave beamforming imaging

Jingchang Wu; Chenli Ji

doi:10.1117/12.3029647

21 June 2024 A reconstruction method based on guided wave beamforming imaging

Jingchang Wu, Chenli Ji

Proceedings Volume 13167, International Conference on Remote Sensing, Mapping, and Image Processing (RSMIP 2024); 1316720 (2024) https://doi.org/10.1117/12.3029647
Event: International Conference on Remote Sensing, Mapping and Image Processing (RSMIP 2024), 2024, Xiamen, China

Abstract

The defect inversion technology based on guided waves can detect defects in plates and pipes, including the location and shape information. An ultrasonic guided wave defect inversion imaging method based on fluctuation fields is proposed in this paper. Firstly, the principle of beamforming (BF) imaging is derived, which is also implemented by using simulation software for defects inversion. Then, through the mapping relationship between BF and Fourier diffraction theorem (DT) in the frequency domain, the results of BF are transformed into DT images, and a clearer inversion image is obtained. The inversion results demonstrate that this method can accurately reconstruct the location, size and shape of the thinning defects in the aluminum plate more with high resolutions.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jingchang Wu and Chenli Ji "A reconstruction method based on guided wave beamforming imaging", Proc. SPIE 13167, International Conference on Remote Sensing, Mapping, and Image Processing (RSMIP 2024), 1316720 (21 June 2024); https://doi.org/10.1117/12.3029647

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