Cuppingkorrektur für Röntgencomputertomographie

摘要

The method involves linearization of attenuation values through the application of a polynomial precorrection-function. A direct reconstruction of polychromatic raw data is carried out for providing images. Correction coefficients in image area are detected by a linear combination of reconstructed images. The determination of polynomial coefficients is carried out through the adjustment of several linearly combined images from polychromatic raw data to a desired pattern. An independent claim is also included for an X-ray computer tomography.