Fig. 9.

Reconstructed results of hp-FEM, where $\beta =0.95$, and the PR is the region bounded in $[-10,10]\times [-10,10]\times [-3,3]$. (a) normalized surface photon density calculated using the reconstructed sources. (b) reconstructed source with a distance error of 1.96 mm. (c) enlarged source, where the normalized photon density is dyed with a pseudo-color after interpolation.