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. Author manuscript; available in PMC: 2019 Jun 5.
Published in final edited form as: SIAM J Imaging Sci. 2018 Jun 5;11(2):1560–1588. doi: 10.1137/17M1153649

Figure 11:

Figure 11:

Normalized cost function values for (a) different tissue sound speeds and (b) different background sound speeds after applying a Hann low-pass filter to the measured data. Results are shown for several cutoff frequencies.