Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method

. 2022 Mar 31;22(7):2691. doi: 10.3390/s22072691

Algorithm 1 Kernel of updating electric field

$t i \leftarrow b l o c k I d x . x * b l o c k D i m . x + t h r e a d I d x . x$
$t j \leftarrow b l o c k I d x . y * b l o c k D i m . y + t h r e a d I d x . x$
if $t i < I m a x$ and $t j < J m a x$ then
for $t k \leftarrow 1$ to $K m a x$ do
$E_{i} [t i + t j * I m a x + t k * (I m a x * J m a x)] \leftarrow U p d a t e E_{i}$
end for
end if