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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Comput Med Imaging Graph. 2016 Jul 25;55:87–94. doi: 10.1016/j.compmedimag.2016.06.007

Table 2.

Localized unsigned and signed border positioning error at blood vessel and steep slope locations (Mean ± SD in μm).

Error Blood Vessel Steep Slope
Unsigned Signed Unsigned Signed
Initialization 18.56±13.11 13.23±15.45 24.12±16.86 21.23±19.65
Lee et al. [2] 11.09± 9.68 10.34±12.24 14.35±10.11 13.44±13.11
Proposed method 3.92± 2.01 -1.23± 2.87 4.83± 3.25 3.56± 3.87