Reconstruction accuracy levels of RUMBA-SD+TV and dRL-SD+TV.

<p>Reconstruction accuracy of RUMBA-SD+TV (blue color) and dRL-SD+TV (red color) is shown in terms of the angular error (θ) (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0138910#pone.0138910.e041" target="_blank">Eq (17)</a>) and the volume fraction error (Δ<i>f</i>) (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0138910#pone.0138910.e042" target="_blank">Eq (18)</a>) as a function of the inter-fiber angle in the 90 synthetic phantoms. Continuous lines are the mean values for each method, and semi-transparent coloured bands contain values within one standard deviation on both sides of the mean. This analysis is based on a dictionary created with the same diffusivities used to generate the data with a SNR = 15.