Outer Surface Reconstruction for 3D Fractured Objects

We study surface reconstruction using a combination of anisotropic Gaussian filter and image segmentation technique -the minimum surface method. Anisotropic Gaussian filtering allows to manage a contrast between intensities of the discontinuity and the object in a desired direction. The minimum surface method detects properly outer boundaries even affected by boundary leakage in the vicinity of blurred edges. The algorithm is tested on a set of real 3D images of large corrosion cracks in stainless steel that initiated at the surface of the tested samples. Results are presented and discussed.

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