Fig. 10.
Image reconstructed with an arbitrarily selected parameter λ(x) = 0.005. (b) Image reconstructed by manually tuned to λ(x) = 0.15. (c) Image reconstructed after the parameter is tuned by PTPN. CT images are displayed in the windows [−200, 500] HU. (d) Tuned parameter map λ(x) displayed in log10.