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. Author manuscript; available in PMC: 2014 Aug 27.
Published in final edited form as: IEEE Trans Biomed Eng. 2014 Jun;61(6):1787–1797. doi: 10.1109/TBME.2014.2307072

Fig. 8.

Fig. 8

Example of segmentation. a) Real and imaginary parts of S21, large circles are transition samples. b) Threshold of absolute value of next-neighbor discrete difference.