Downscaling-based segmentation for unresolved images of highly heterogeneous granular porous samples

Svyatoslav Korneev, Xiaofan Yang, John Zachara, Timothy Scheibe & Ilenia Battiato
We propose a simple and efficient algorithm of downscaling followed by segmentation to reconstruct the unresolved pore space from X-ray computed tomography (XCT) images of natural geological porous media columns. Contrary to widely employed single and multilevel threshold-based segmentation, the proposed method is based on a continuous map between pixel intensity and local pixel porosity that does not rely on the definition of arbitrary thresholds. The approach is used to generate a high-resolution binary image...
1 citation reported since publication in 2018.
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