![](/images/graphics-bg.png)
Nonlocal Means-Based Denoising for Medical Images
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-20
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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 required by medical imaging analysis.
Nonlocal means (NL-means) method provides a powerful framework for denoising.
In this work, we investigate an adaptive denoising scheme based on the patch NL-means algorithm for medical imaging denoising.
In contrast with the traditional NL-means algorithm, the proposed adaptive NL-means denoising scheme has three unique features.
First, we use a restricted local neighbourhood where the true intensity for each noisy pixel is estimated from a set of selected neighbouring pixels to perform the denoising process.
Second, the weights used are calculated thanks to the similarity between the patch to denoise and the other patches candidates.
Finally, we apply the steering kernel to preserve the details of the images.
The proposed method has been compared with similar state-of-art methods over synthetic and real clinical medical images showing an improved performance in all cases analyzed.
American Psychological Association (APA)
Lv, Ke& He, Ning& Li, Liang. 2012. Nonlocal Means-Based Denoising for Medical Images. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-472363
Modern Language Association (MLA)
Lv, Ke…[et al.]. Nonlocal Means-Based Denoising for Medical Images. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-472363
American Medical Association (AMA)
Lv, Ke& He, Ning& Li, Liang. Nonlocal Means-Based Denoising for Medical Images. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-472363
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472363