| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an iterative CT reconstruction method using multi-modal edge information. <P>SOLUTION: A computed tomography reconstruction method includes the step of implementing an iterative image reconstruction process 300 using accurate forward projection 302 for CT metrology of an object. During each of a plurality of iterations, a reconstructed image 206 is constrained by using prior outer edge information 102 acquired from a modality in addition to CT, and then transformed to a projection domain so as to generate a calculated sinogram 202. A corrected image 210 is determined based on the calculated sinogram 202 and a measured sinogram 104. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
