Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Feasibility Study of Block-Matching and 3D Filtering Algorithm in Low-Dose CT Image with Tin Filter
- Authors
- Song, Mingyu; Kim, Minsu; Lim, Junsoo; Chun, Donghwan; Park, Minji; Shim, Jina; Lee, Youngjin
- Issue Date
- Mar-2023
- Publisher
- 한국자기학회
- Keywords
- radio-magnetic imaging; low-dose CT; Tin filter; radio-magnetic image processing; block-matching and 3D filtering (BM3D); optimization of denoising algorithm
- Citation
- Journal of Magnetics, v.28, no.1, pp 56 - 63
- Pages
- 8
- Journal Title
- Journal of Magnetics
- Volume
- 28
- Number
- 1
- Start Page
- 56
- End Page
- 63
- ISSN
- 1226-1750
2233-6656
- Abstract
- The purpose of this study was to confirm the utility of block-matching and 3D filtering (BM3D) algorithm in computed tomography (CT) images using a tin filter with a high pitch. We acquired phantom images and measured the coefficient of variation (COV) and contrast-to-noise ratio (CNR) for quantitative evaluation. The optimized results were obtained when the sigma value of the BM3D algorithm was nine. In addition, when the sigma value of the optimized BM3D algorithm was applied, superior results were obtained compared with conventional filtering methods. In particular, we confirmed that the COV and CNR of the images obtained using the BM3D algorithm improved 6.52 and 5.49 times, respectively. In conclusion, the utility of the optimized BM3D algorithm has been demonstrated in low-dose CT images using a tin filter.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 보건과학대학 > 방사선학과 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Related Researcher
- Lee, Youngjin
- Health Science (Dept.of Radiology)