| 摘要 |
A method for reconstruction of a 3D volume (59; 27; 61) from a set of projection images (X1, X2) recorded by a tomography apparatus (10) using penetrating radiation (50) in the field of dental medical applications takes into account a given value of at least one parameter (dx, w 0 ). In order to optimize the reconstruction of the 3D volume (59; 27; 61) simulated projection images (X1, X2) are generated which correspond to at least a subset of the recorded projection images (X1, X2) by simulating a projection of the penetrating radiation (50) through the reconstructed 3D volume (59; 27; 61) taking into account said given value of the at least one parameter (dx, w 0 ). Following, a re-projection error is determined by comparing the simulated projection images (X1, X2) with the corresponding recorded projection images (X1, X2). The re-projection error is then minimized by changing the value of the at least one parameter (dx, w 0 ) and by iterating over the above steps. |
