Fig. 14.

Reconstructed results of hp-FEM, where $\beta =0.9$, and the PR is the region bounded in the region $[0,40]\times [0,30]\times [3,8]$. (a) normalized surface photon density calculated from the reconstructed sources. (b) reconstructed source. (c) enlarged source, where the photon density is dyed with a pseudo-color after interpolation.