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Fig. 1 | BMC Medical Imaging

Fig. 1

From: Semi-automated brain tumor segmentation on multi-parametric MRI using regularized non-negative matrix factorization

Fig. 1

Illustration of morphological post-processing after initial semi-automated NMF based segmentation of necrosis a and active tumor c. Step 1: false positives are removed by withholding only the connected components closest to the user-defined seeding points (marked by cursor arrows) for necrosis (b) and for active tumor (d). Step 2: spatial adjacency of the connected components in the preliminary necrosis mask (green) to the withheld active tumor mask (red) is verified in (e). The final necrosis mask is shown in yellow in (f)

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BMC Medical Imaging

ISSN: 1471-2342

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