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True 4D Image Denoising on the GPU
Joint Authors
Andersson, Mats
Eklund, Anders
Knutsson, Hans
Source
International Journal of Biomedical Imaging
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-01
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
The use of image denoising techniques is an important part of many medical imaging applications.
One common application is to improve the image quality of low-dose (noisy) computed tomography (CT) data.
While 3D image denoising previously has been applied to several volumes independently, there has not been much work done on true 4D image denoising, where the algorithm considers several volumes at the same time.
The problem with 4D image denoising, compared to 2D and 3D denoising, is that the computational complexity increases exponentially.
In this paper we describe a novel algorithm for true 4D image denoising, based on local adaptive filtering, and how to implement it on the graphics processing unit (GPU).
The algorithm was applied to a 4D CT heart dataset of the resolution 512 × 512 × 445 × 20.
The result is that the GPU can complete the denoising in about 25 minutes if spatial filtering is used and in about 8 minutes if FFT-based filtering is used.
The CPU implementation requires several days of processing time for spatial filtering and about 50 minutes for FFT-based filtering.
The short processing time increases the clinical value of true 4D image denoising significantly.
American Psychological Association (APA)
Eklund, Anders& Andersson, Mats& Knutsson, Hans. 2011. True 4D Image Denoising on the GPU. International Journal of Biomedical Imaging،Vol. 2011, no. 2011, pp.1-16.
https://search.emarefa.net/detail/BIM-510990
Modern Language Association (MLA)
Eklund, Anders…[et al.]. True 4D Image Denoising on the GPU. International Journal of Biomedical Imaging No. 2011 (2011), pp.1-16.
https://search.emarefa.net/detail/BIM-510990
American Medical Association (AMA)
Eklund, Anders& Andersson, Mats& Knutsson, Hans. True 4D Image Denoising on the GPU. International Journal of Biomedical Imaging. 2011. Vol. 2011, no. 2011, pp.1-16.
https://search.emarefa.net/detail/BIM-510990
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510990