Fig. 5.
Sagittal view of the clinical lung test data set using different denoising methods. Spine regions in the sagittal view are zoomed in for easier visual comparison. First column: EM image smoothed by Gaussian denoising; second column: EM images smoothed by NLM denoising; third column: EM image denoised by CNN trained from simulated phantom; fourth column: EM image denoised by CNN from real data only; fifth column: EM image denoised by CNN with fine-tuning. Permission to reuse this figure obtained from Gong et al 2018.