Table II:
Statistical properties of the images in Figs. 4, 6 axnd 8. These are the ROIs indicated by the red rectangles in Figs. 3, 5 and 7. Note that the relative percentage difference of NDCT values versus the rest of models is added to aid the readers.
| Fig. 4 | Fig. 6 | Fig. 8 | ||||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| NDCT | 115.282 | 45.946 | 56.903 | 58.512 | 51.225 | 73.297 |
| LDCT | 114.955 (−0.2837%) | 74.299 (61.709%) | 57.228 (0.571%) | 85.854 (46.729%) | 50.142 (−2.114%) | 89.346 (21.896%) |
| CNN-L1 | 115.809 (0.4571%) | 28.532 (−37.9010%) | 57.709 (1.416%) | 42.315 (−27.682%) | 50.917 (−0.6013%) | 66.359 (−9.466%) |
| CNN-L2 | 117.191 (1.656%) | 29.933 (−34.852%) | 58.956 (3.608%) | 43.411 (−25.808%) | 52.229 (1.960%) | 66.922 (−8.698%) |
| SL-net | 131.333 (13.923%) | 35.844 (−21.987%) | 68.471 (20.329%) | 50.789 (−13.199%) | 63.874 (24.693%) | 72.718 (−0.790%) |
| MSL-net | 118.395 (2.701%) | 32.548 (−29.160%) | 63.271 (11.191%) | 46.979 (−19.711%) | 57.052 (11.375%) | 69.519 (−5.154%) |
| WGAN | 105.461 (−8.519%) | 42.659 (−7.154%) | 48.432 (−14.887%) | 54.306 (−7.188%) | 42.417 (−17.195%) | 70.904 (−3.265%) |
| BM3D | 114.058 (−1.062%) | 31.515 (−31.409%) | 25.649 (−54.925%) | 69.411 (18.627%) | 15.183 (−70.360%) | 100.08 (36.540%) |
| RED-CNN | 116.642 (1.180%) | 27.194 (−40.813%) | 57.985 (1.902%) | 42.048 (−28.138%) | 51.272 (0.0918%) | 66.961 (−8.644%) |
| WGAN-VGG | 108.229 (−6.118%) | 36.721 (−20.078%) | 54.450 (−4.311%) | 48.660 (−16.838%) | 44.959 (−12.232%) | 67.059 (−8.511%) |
| SMGAN-2D | 108.758 (−5.659%) | 40.948 (−10.878%) | 51.243 (−9.947%) | 53.065 (−9.309%) | 48.230 (−5.847%) | 72.073 (−1.670%) |
| SMGAN-3D | 115.569 (0.749%) | 43.654 (−6.723%) | 54.356 (−4.476%) | 56.552 (−3.350%) | 55.378 (8.107%) | 73.303 (−0.00821%) |