A general form of large FOV scan model and reconstruction algorithm for industrial CT
The scan model for enlarging the FOV of an industrial CT include detector displaced scanning and rotation center displaced scanning.In practice,it is common that both the detector center and rotation center are shifted in a large FOV scan model.In this work,aunified form of large FOV scan model is pro-posed for the scan with both the detector center and rotation center shifted.A Parker weighting based re-construction algorithm is also formulated by analyzing the repeated sampling of projections.Experimental result shows that the unified form of large FOV scan model and the proposed reconstruction algorithm is feasible and valuable in practical engineering.
industrial CTdetector displaced scanningrotation center displaced scanning
万方数据
维普
