A method, device, and storage medium for tunnel contour image correction and deformation calculation.

Abstract

This application discloses a method, device, and storage medium for tunnel contour image correction and deformation calculation. The method includes extracting the tunnel contour from a tunnel contour image to generate a light stripe contour map; converting the light stripe contour map into a contour line with geometrically consistent shape to generate a preprocessed contour map; visually correcting the preprocessed contour map to remove geometric distortions of the contours, generating a corrected image; aligning the corrected image with a preset reference image to eliminate contour misalignment, generating an aligned image; performing angle binning sampling on feature points of the aligned image and the reference image, quantifying the difference between the aligned image and the reference image, and determining whether the tunnel contour has deformed based on the difference. Determining whether the tunnel contour has deformed based on the quantized difference enables rapid and accurate determination of whether tunnel contour deformation exists, providing quick results and improving detection efficiency.

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