| Item type |
デフォルトアイテムタイプ（フル）その２(1) |
| 公開日 |
2025-12-15 |
| タイトル |
|
|
タイトル |
Spectral X-ray CT Image Denoising using Weighted Local Regression and Noise-Insensitive Feature Dimensionality Reduction |
|
言語 |
en |
| 作成者 |
HOTTA, T.
YATAGAWA, T.
OHTAKE, Y.
MATSUKAWA, M.
SUZUKI, H.
AOKI, T.
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in Journal of Instrumentation. IOP Publishing Ltd is not responsiblefor any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1748-0221/19/08/P08020 |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Computerized Tomography (CT) and Computed Radiography (CR) |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Analysis and statistical methods |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Data processing methods |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Image filtering |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
This study introduces a novel denoising method for spectral X-ray computed tomography (CT) images using weighted local regression (WLR). The proposed method exploits the common structural information present across different energy bins. Denoised pixel intensities of a certain energy bin are estimated using the intensities of the other energy bins via WLR. Denoising is achieved by applying a WLR model to the noisy pixel intensities of all energy bins, excluding the target bin, which obtains approximate noise-free intensities for the target energy bin. The performance of our approach was assessed using synthetic spectral X-ray CT images produced using a Monte Carlo photon simulator called the Electron Gamma Shower 5 (EGS5). Both qualitative and quantitative evaluations demonstrated that our approach effectively reduced noise across all energy bins while maintaining image sharpness. Comparisons with common denoising methods demonstrate the effectiveness of the proposed method. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
IOP |
|
言語 |
en |
| 日付 |
|
|
日付 |
2024-08-28 |
|
日付タイプ |
Issued |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1088/1748-0221/19/08/P08020 |
| 収録物名 |
|
|
収録物名 |
Journal of Instrumentation |
|
言語 |
en |
| 号 |
|
|
号 |
19 |
0102502301.pdf (908.0 KB)
