(a) ,
(b) ,
(c) ,
(d) Ground truth
(e) Chest radiograph
Figure 10: The reconstructed bone images using the different numbers of exemplars. From left to right, the numbers of used exemplars () are 1, 3, and 5, respectively. rmse is the root mean squared error of the reconstructed soft tissue image. (a–c) are the reconstructed bone images. (d) corresponds to the ground truth. The corresponding standard chest radiograph is shown in (e).