Wednesday September 20th 2017

Robust brain MRI denoising and segmentation using enhanced non‐local means algorithm

ABSTRACT Image denoising is an integral component of many practical medical systems. Non‐local means (NLM) is an effective method for image denoising which exploits the inherent structural redundancy present in images. Improved adaptive non‐local means (IANLM) is an improved variant of classical NLM based on a robust threshold criterion. In this paper, we have proposed an enhanced non‐local means (ENLM) algorithm, for application to brain MRI, by introducing several extensions to the IANLM algorithm. First, a Rician bias correction method is applied for adapting the IANLM algorithm to Rician noise in MR images. Second, a selective median filtering procedure based on fuzzy c‐means algorithm is proposed as a postprocessing step, in order to further improve the quality of IANLM‐filt…

Source:  

Robust brain MRI denoising and segmentation using enhanced non‐local means algorithm

Leave a Comment

More from category

New man-made antioxidant could help improve success rates of cell-based therapies
New man-made antioxidant could help improve success rates of cell-based therapies

Cell therapies being developed to treat a range of conditions could be improved by a chemical compound that aids their [Read More]

Patient and Provider Organizations Oppose Graham-Cassidy Health Care Proposal
Patient and Provider Organizations Oppose Graham-Cassidy Health Care Proposal

/About-the-Society/News/Patient-and-Provider-Organizations-Oppose-Graham-C [Read More]

Researchers Discover Potential Driver of MS Disease Progression and Test Ways to Block It
Researchers Discover Potential Driver of MS Disease Progression and Test Ways to Block It

/About-the-Society/News/Researchers-Discover-Potential-Driver-of-MS-Diseas [Read More]

Scientists discover markers for progressive multiple sclerosis
Scientists discover markers for progressive multiple sclerosis

Scientists have uncovered two closely related cytokines -- molecules involved in cell communication and movement -- [Read More]

Study uncovers markers for severe form of multiple sclerosis
Study uncovers markers for severe form of multiple sclerosis

Scientists have uncovered two molecules involved in cell communication and movement that may explain why some people [Read More]