Table 1 Segmentation quality

Segmentation method	Jaccard Index		Precision		Recall		Accuracy
Segmentation method	Pore	Copper	Pore	Copper	Pore	Copper	Accuracy
CTA	0.69	0.81	0.98	0.81	0.70	0.99	0.87
Hybrid	0.77	0.82	0.83	0.93	0.92	0.88	0.89
U-Net CTA	0.59	0.77	0.98	0.77	0.60	0.99	0.83
U-Net Hybrid	0.86	0.89	0.89	0.96	0.96	0.92	0.94

We compare several metrics, e.g., Jaccard Index, precision, recall, and accuracy to validate the segmentation results for the pore and copper. For the segmentation, we use the CTA, the hybrid algorithm as well as the U-Net predictions trained by the CTA and the hybrid algorithm.

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