Enhancement of image quality by utilization of a priori information

摘要: The quality of incomplete data Non-Destructive Evaluation and Computed Tomography images is improved by incorporating a priori information into the image reconstruction processing to supplement available data. provided electronic models part derived from solid modeler, physics inspection process, outputs touch other sensors. Methods improving limited-angle X-ray CT are given. Calculated projection in missing angular range calculating x-ray path lengths through model part, attenuation known physical parameters source. measured calculated combined reconstruct image. In an iterative approach, precise boundary improve limited angle