Verification of part geometry by tomographic reconstruction from several radiographics
K. M. Hanson · Transactions of the American Nuclear Society · 1993
It is often desired to accurately verify the geometry and dimensions of a structural component. One way to reach this goal is through tomographic reconstruction of the part density distribution, which typically requires that the part be radiographed from many different directions. Tomographic reconstructions can be obtained from just a few radiographs when the approximate geometry of the part to be examined is known beforehand. The proposed reconstruction algorithm is based on the Bayesian approach to data analysis, which allows one to incorporate prior information in drawing inferences from the data. The essential feature of the proposed algorithm is a flexible geometric model for the part.