The influence of the geometry misalignment on the CT images.

<p>(a) and (b) are two projections under two different view angles. (c)-(g) are the projection sinograms and (h)-(l) the reconstructed CT images. (c) and (h) correspond to the case without jittering, (d) and (i) with shift along axis <i>x</i>, (e) and (j) with shift along axis <i>y</i>, (f) and (k) with shift along axis <i>z</i> and (g) and (l) with shifts along <i>x</i>, <i>y</i> and <i>z</i> simultaneously.