Modeling Respiratory Signals by Deformable Image Registration on 4DCT Lung Images

Figure 10

(a) The lung presentation in slices 20th, 25th, and 70th. (b) The squared error of LBP (formula in Appendix in Algorithm 4) between slices. Slices 20th and 70th have lower squared error than slices 20th and 25th in all bins. This means that the slices 20th and 25th are in the same respiratory stage, while the slices 20th and 70th are not in the same stage.

(a)

(b)