The noise reduction algorithms have been widely used in the field of medical X-ray imaging
system using semiconductor photon counting detector (PCD). Among these algorithms, fast …

Photon counting spectral X-ray imaging system has many advantages compared with the
conventional energy integrated X-ray imaging system. The photon counting room …

Gamma imaging of the brain in nuclear medicine usually contains a noise distribution owing
to attenuation and scattering effects. This study aimed at improving the quality of the image …

The filters used in X-ray systems affect the image quality and radiation dose. Although using
filters has advantages in terms of image quality and dose, image noise increases because …

In the diagnostic radiology field, reducing the radiation dose for patient lead to increased
noise in image. Since increases of noise decrease the diagnosis rate, to reduce the noise is …

The presence of Poisson noise in medical X-ray images leads to degradation of the image
quality. The obscured information is required for accurate diagnosis. During X-ray image …

The resulting image obtained from an X-ray imaging system depends significantly on the
characteristics of the detector. In particular, when an X-ray image is acquired by thinning the …

BACKGROUND: Image reconstruction for realistic medical images under incomplete
observation is still one of the core tasks for computed tomography (CT). However, the stair …

The noise reduction algorithm using the non-local means (NLM) approach is very efficient in
nuclear medicine imaging. In this study, the applicability of the NLM noise reduction …

As a method for diagnosing chest lesions, a chest digital tomosynthesis (CDT) X-ray imaging
system based on projection data using a limited angle has been widely used in the medical …