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Fig. 5E —Simulations of artifacts generated by bubble motion during CT
acquisition. First column shows acquisition process; center column, resulting
sinogram after filtering; and last column, reconstructed image. Three viewing
directions (V1 = 0°, V2 = 90°, V3 = 180°) are shown for 180°
acquisition and for corresponding rows in sinogram. Arrows indicate distance
traveled by bubble during acquisition. Acquisition process is the same as in
C, with gantry rotation period of 0.5 second, but with 90° gantry
offset for start of acquisition as shown.
