Efficient low-dose CT denoising by locally-consistent non-local means (LC-NLM)
The never-ending quest for lower radiation exposure is a major challenge to the image
quality of advanced CT scans. Post-processing algorithms have been recently proposed to …
quality of advanced CT scans. Post-processing algorithms have been recently proposed to …
A constructive non-local means algorithm for low-dose computed tomography denoising with morphological residual processing
Low-dose computed tomography (LDCT) has attracted significant attention in the domain of
medical imaging due to the inherent risks of normal-dose computed tomography (NDCT) …
medical imaging due to the inherent risks of normal-dose computed tomography (NDCT) …
Adaptive non-local means filtering based on local noise level for CT denoising
Radiation dose from CT scans is an increasing health concern in the practice of radiology.
Higher dose scans can produce clearer images with high diagnostic quality, but may …
Higher dose scans can produce clearer images with high diagnostic quality, but may …
Edge‐preserving median filter and weighted coding with sparse nonlocal regularization for low‐dose ct image denoising algorithm
Q Yuan, Z Peng, Z Chen, Y Guo… - Journal of Healthcare …, 2021 - Wiley Online Library
The impulse noise in CT image was removed based on edge‐preserving median filter
algorithm. The sparse nonlocal regularization algorithm weighted coding was used to …
algorithm. The sparse nonlocal regularization algorithm weighted coding was used to …
Denoising for low-dose CT image by discriminative weighted nuclear norm minimization
L Jia, Q Zhang, Y Shang, Y Wang, Y Liu, N Wang… - IEEE …, 2018 - ieeexplore.ieee.org
Low-dose computed tomography (LDCT) is an effective approach to reduce radiation
exposure to patients. Lots of mottle noise and streak artifacts, however, are introduced to the …
exposure to patients. Lots of mottle noise and streak artifacts, however, are introduced to the …
Low-dose CT image denoising using sparse 3d transformation with probabilistic non-local means for clinical applications
D Chyophel Lepcha, B Goyal… - The Imaging Science …, 2023 - Taylor & Francis
The use of low-dose computed tomography (LDCT) in medical practice can effectively
reduce the radiation risk of patients, but it may increase noise and artefacts, which can …
reduce the radiation risk of patients, but it may increase noise and artefacts, which can …
Spectral CT image restoration via an average image-induced nonlocal means filter
Goal: Spectral computed tomography (SCT) images reconstructed by an analytical approach
often suffer from a poor signal-to-noise ratio and strong streak artifacts when sufficient …
often suffer from a poor signal-to-noise ratio and strong streak artifacts when sufficient …
SR-NLM: a sinogram restoration induced non-local means image filtering for low-dose computed tomography
Radiation dose has raised significant concerns to patients and operators in modern X-ray
computed tomography (CT) examinations. A simple and cost-effective means to perform a …
computed tomography (CT) examinations. A simple and cost-effective means to perform a …
Nonlocal Means‐Based Denoising for Medical Images
K Lu, N He, L Li - Computational and mathematical methods in …, 2012 - Wiley Online Library
Medical images often consist of low‐contrast objects corrupted by random noise arising in
the image acquisition process. Thus, image denoising is one of the fundamental tasks …
the image acquisition process. Thus, image denoising is one of the fundamental tasks …
Adaptive non‐local means on local principle neighborhood for noise/artifacts reduction in low‐dose CT images
Purpose Low‐dose CT (LDCT) technique can reduce the x‐ray radiation exposure to
patients at the cost of degraded images with severe noise and artifacts. Non‐local means …
patients at the cost of degraded images with severe noise and artifacts. Non‐local means …