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TRACE method corrects ring artifacts in photon-counting CT scans

By PulseAugur Editorial · [1 sources] ·

A new method called TRACE has been developed to correct ring artifacts in photon-counting detector computed tomography (PCD-CT) scans. This unsupervised, two-stage sinogram decomposition technique estimates and corrects errors caused by detector response nonuniformity. TRACE represents these errors using a fixed bias combined with low-order discrete cosine transform (DCT) components, allowing for the description of angular variations. Experiments on phantom data demonstrate that TRACE effectively reduces ring artifacts and improves image uniformity while maintaining image detail and sharpness. AI

IMPACT Introduces a novel method for improving image quality in photon-counting CT, potentially enhancing diagnostic accuracy.

RANK_REASON Publication of a research paper detailing a new method for artifact correction in medical imaging. [lever_c_demoted from research: ic=1 ai=0.7]

Read on arXiv cs.CV →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

TRACE method corrects ring artifacts in photon-counting CT scans

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Publication of a research paper detailing a new method for artifact correction in medical imaging. [lever_c_demoted from research: ic=1 ai=0.7]
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COVERAGE [1]

  1. arXiv cs.CV TIER_1 English(EN) · Jigang Duan, Heran Wang, Ligen Shi, Zheng Sun, Ping Yang, Xing Zhao ·

    TRACE: Two-Stage Detector-Response Estimation With Angular Cosine Expansion for Ring Artifact Correction in Photon-Counting CT

    arXiv:2609.15834v1 Announce Type: new Abstract: Detector response nonuniformity introduces systematic projection errors and ring artifacts in photon-counting detector computed tomography (PCD-CT). In measured PCD-CT data, residual stripe amplitudes vary slowly with projection ang…

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