A Subspace Preconditioned LSQR Gauss-Newton Method with a Constrained Line Search Path Applied to 3D Biomedical Microwave Imaging

Figure 13

The permittivity in a sagittal slice through full-resolution MRI-derived numerical breast phantom 1 from ACR class 1 at 2 GHz. The cell size is 0.5 mm. Real part (a) and imaginary part (b).

(a)

(b)