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. Author manuscript; available in PMC: 2009 Oct 1.

Published in final edited form as: J Struct Biol. 2008 Apr 22;164(1):7–17. doi: 10.1016/j.jsb.2008.04.006

Fig. 5 — Fourier Ring Correlation (FRC) plots. Comparison of the performance of different denoising algorithms on Bdellovibrio (A) and HIV-1 (B) tomograms (see Methods for more details). In (A), represents Wiener filter, represents NAD, represents phase preserving algorithm, represents Weickert and represents the BLSGSM algorithm. In (B), represents phase preserving algorithm, represents bilinear filter, represents NAD and represents the BLS-GSM algorithm. Here, $\frac{f}{f_{s}}$ refers to the normalized spatial frequency.

Inline graphic — Fourier Ring Correlation (FRC) plots. Comparison of the performance of different denoising algorithms on Bdellovibrio (A) and HIV-1 (B) tomograms (see Methods for more details). In (A), represents Wiener filter, represents NAD, represents phase preserving algorithm, represents Weickert and represents the BLSGSM algorithm. In (B), represents phase preserving algorithm, represents bilinear filter, represents NAD and represents the BLS-GSM algorithm. Here, $\frac{f}{f_{s}}$ refers to the normalized spatial frequency.