A Dual-domain Regularization Method for Ring Artifact Removal of X-ray CT

arXiv:2403.08247v1 Announce Type: cross
Abstract: Ring artifacts in computed tomography images, arising from the undesirable responses of detector units, significantly degrade image quality and diagnostic reliability. To address this challenge, we propose a dual-domain regularization model to effectively remove ring artifacts, while maintaining the integrity of the original CT image. The proposed model corrects the vertical stripe artifacts on the sinogram by innovatively updating the response inconsistency compensation coefficients of detector units, which is achieved by employing the group sparse …

abstract artifact arxiv challenge cs.cv diagnostic domain eess.iv image images integrity quality ray regularization reliability responses ring type units x-ray