Figures 5

Position accuracy for each imaging modality with ten respiratory phases in (a) regular motion pattern (5 s respiratory) and (b) fast motion pattern (3 s respiratory). The results for the ground truth (dashed line), large target (solid), and small target (hollow) are plotted in the same figure. ExIn refers to the phase from exhaling to inhaling, and InEx refers to the phase from inhaling to exhaling. GT refers to ground truth. L and S refer to large and small targets, respectively.