Figure 6
Estimation of mean and covariance tensors from synthetic MR signal for different DTDs with varying signal-to-noise ratio (SNR) at the largest b-value. The mean and covariance glyphs for actual (orange) and estimated (blue) DTD are overlaid. (First row) Isotropic emulsion, (Second row) Shape heterogeneous DTD and (Third row) Crossing fiber type DTD. The reduction in covariance estimation error with increasing SNR is clearly visible in shape and orientation heterogeneous DTD. The above graphics was generated using the Mathematica software67.
