EJNMMI Physics

Table 1 Values of k used in the Chan–Vese segmentations, per phantom volume and background AC

From: Comparison of Otsu and an adapted Chan–Vese method to determine thyroid active volume using Monte Carlo generated SPECT images

Background AC (%)	20 ml	35 ml	50 ml
5	\(3\cdot 10^{-4}\)	\(3\cdot 10^{-4}\)	\(3\cdot 10^{-4}\)
10	\(3\cdot 10^{-4}\)	\(3\cdot 10^{-2}\)	\(3\cdot 10^{-4}\)
15	\(1\cdot 10^{-2}\)	\(6\cdot 10^{-2}\)	\(3\cdot 10^{-4}\)
20	\(2\cdot 10^{-2}\)	\(5\cdot 10^{-2}\)	\(3\cdot 10^{-4}\)

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