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Table 1 Comparison of local and global CNR by four different methods, including MER, ORPCA, MCR-RPCA and IFC-RPCA over 22 XRA images

From: Inter/intra-frame constrained vascular segmentation in X-ray angiographic image sequence

Methods

Local CNR

Global CNR

Original Image

1.2175 ± 0.3838

0.8259 ± 0.2685

MER

0.1259 ± 0.0597

0.1709 ± 0.1143

ORPCA

3.8914 ± 0.5323

5.6527 ± 1.0719

MCR-RPCA

2.9081 ± 0.7021

4.8105 ± 1.3528

IFC-RPCA

4.2882 ± 0.7430

6.6344 ± 1.0849