True 4D Image Denoising on the GPU
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...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2011/952819 |
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| _version_ | 1849435349928902656 |
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| author | Anders Eklund Mats Andersson Hans Knutsson |
| author_facet | Anders Eklund Mats Andersson Hans Knutsson |
| author_sort | Anders Eklund |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-e53e6dede7c34ff5bd365a0a2bcc8710 |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-e53e6dede7c34ff5bd365a0a2bcc87102025-08-20T03:26:20ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962011-01-01201110.1155/2011/952819952819True 4D Image Denoising on the GPUAnders Eklund0Mats Andersson1Hans Knutsson2Division of Medical Informatics, Department of Biomedical Engineering, Linköping University, Linköping, SwedenDivision of Medical Informatics, Department of Biomedical Engineering, Linköping University, Linköping, SwedenDivision of Medical Informatics, Department of Biomedical Engineering, Linköping University, Linköping, SwedenThe 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.http://dx.doi.org/10.1155/2011/952819 |
| spellingShingle | Anders Eklund Mats Andersson Hans Knutsson True 4D Image Denoising on the GPU International Journal of Biomedical Imaging |
| title | True 4D Image Denoising on the GPU |
| title_full | True 4D Image Denoising on the GPU |
| title_fullStr | True 4D Image Denoising on the GPU |
| title_full_unstemmed | True 4D Image Denoising on the GPU |
| title_short | True 4D Image Denoising on the GPU |
| title_sort | true 4d image denoising on the gpu |
| url | http://dx.doi.org/10.1155/2011/952819 |
| work_keys_str_mv | AT anderseklund true4dimagedenoisingonthegpu AT matsandersson true4dimagedenoisingonthegpu AT hansknutsson true4dimagedenoisingonthegpu |