The use of Cone-beam Computed Tomography (CBCT) in radiotherapy is increasing due to
the widespread implementation of kilovoltage systems on the currently available linear …

Ring artifacts in cone beam computed tomography (CBCT) images are caused by pixel gain
variations using flat-panel detectors, and may lead to structured non-uniformities and …

The development of energy-resolving photon-counting detectors provides a new approach
for obtaining spectral information in computed tomography. However, the responses of …

Cone beam computed tomography (CBCT) is an important tool for clinical diagnosis and
many industrial applications. However, ring artifacts usually appear in CBCT images, due to …

Ring artifacts in computed tomography (CT) images degrade image quality and obscure the
true shapes of objects. While several correction methods have been developed, their …

Background Ring artifacts are the concentric rings superimposed on the tomographic
images often caused by the defective and insufficient calibrated detector elements as well as …

In high resolution computed tomography (CT) using flat panel detectors, imperfect or
defected detector elements cause stripe artifacts in sinogram which results in concentric ring …

In this article, we introduce a new ring artifacts reduction procedure that combines several
ideas from existing methods into one complex and robust approach with a goal to overcome …

High resolution tomographic images acquired with a digital X-ray detector are often
degraded by the so called ring artifacts. In this paper, a detail analysis including the …

Ring artifacts seriously deteriorate the quality of CT images. Intensity-dependence of
detector responses will result in intensity-dependent ring artifacts and time-dependence of …