抄録
The aims of this study were to investigate the noise reduction in a CT image using a modified Wiener filtering-edge detection method. We modified the noise reduction algorithm of a combination of the Wiener filter and edge detection by addition of a dilation stage after edge detection. We then evaluated kernel size of the Wiener filter, threshold values in the edge detection, and size of structuring elements in the dilation process. Images of adult anthropomorphic and self-built wire phantoms were acquired by the new 4-row multislice CT Toshiba Alexion™. The images of the anthropomorphic phantom were used for a visual evaluation, while the images of the wire-phantom were used to obtain the spatial resolution and noise of the images. A Wiener filter-edge detection filter coupled with dilation, potentially reduced more CT noise. We found that the spatial resolution and noise of the filtered images were influenced by the size of the Wiener filter kernel, threshold of edge detection, and size of structuring element.
| 元の言語 | 英語 |
|---|---|
| 記事番号 | 12022 |
| ジャーナル | Journal of Physics: Conference Series |
| 巻 | 1217 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 6 17 2019 |
| イベント | 8th International Seminar on New Paradigm and Innovation on Natural Sciences and Its Application, ISNPINSA 2018 - Semarang, Central Java, インドネシア 継続期間: 9 26 2018 → … |
Fingerprint
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
これを引用
An investigation of a CT noise reduction using a modified of wiener filtering-edge detection. / Anam, C.; Fujibuchi, T.; Toyoda, T.; Sato, N.; Haryanto, F.; Widita, R.; Arif, I.; Dougherty, G.
：: Journal of Physics: Conference Series, 巻 1217, 番号 1, 12022, 17.06.2019.研究成果: ジャーナルへの寄稿 › Conference article
}
TY - JOUR
T1 - An investigation of a CT noise reduction using a modified of wiener filtering-edge detection
AU - Anam, C.
AU - Fujibuchi, T.
AU - Toyoda, T.
AU - Sato, N.
AU - Haryanto, F.
AU - Widita, R.
AU - Arif, I.
AU - Dougherty, G.
PY - 2019/6/17
Y1 - 2019/6/17
N2 - The aims of this study were to investigate the noise reduction in a CT image using a modified Wiener filtering-edge detection method. We modified the noise reduction algorithm of a combination of the Wiener filter and edge detection by addition of a dilation stage after edge detection. We then evaluated kernel size of the Wiener filter, threshold values in the edge detection, and size of structuring elements in the dilation process. Images of adult anthropomorphic and self-built wire phantoms were acquired by the new 4-row multislice CT Toshiba Alexion™. The images of the anthropomorphic phantom were used for a visual evaluation, while the images of the wire-phantom were used to obtain the spatial resolution and noise of the images. A Wiener filter-edge detection filter coupled with dilation, potentially reduced more CT noise. We found that the spatial resolution and noise of the filtered images were influenced by the size of the Wiener filter kernel, threshold of edge detection, and size of structuring element.
AB - The aims of this study were to investigate the noise reduction in a CT image using a modified Wiener filtering-edge detection method. We modified the noise reduction algorithm of a combination of the Wiener filter and edge detection by addition of a dilation stage after edge detection. We then evaluated kernel size of the Wiener filter, threshold values in the edge detection, and size of structuring elements in the dilation process. Images of adult anthropomorphic and self-built wire phantoms were acquired by the new 4-row multislice CT Toshiba Alexion™. The images of the anthropomorphic phantom were used for a visual evaluation, while the images of the wire-phantom were used to obtain the spatial resolution and noise of the images. A Wiener filter-edge detection filter coupled with dilation, potentially reduced more CT noise. We found that the spatial resolution and noise of the filtered images were influenced by the size of the Wiener filter kernel, threshold of edge detection, and size of structuring element.
UR - http://www.scopus.com/inward/record.url?scp=85072061241&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072061241&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1217/1/012022
DO - 10.1088/1742-6596/1217/1/012022
M3 - Conference article
AN - SCOPUS:85072061241
VL - 1217
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 12022
ER -