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Verification by Actual Measurement of Theoretical Relationship between Standard Deviation and Wiener Spectrum in Noise Analysis for Digital Radiographic Systems: Verification in One- and Two-Dimensional Wiener Spectrum
https://kwmed.repo.nii.ac.jp/records/2000141
https://kwmed.repo.nii.ac.jp/records/2000141b637077a-0116-4dd4-a4a4-3d3d4bef2cec
| 名前 / ファイル | ライセンス | アクション |
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PDF (2.4 MB)
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2025-06-19 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Verification by Actual Measurement of Theoretical Relationship between Standard Deviation and Wiener Spectrum in Noise Analysis for Digital Radiographic Systems: Verification in One- and Two-Dimensional Wiener Spectrum | |||||||||||||||
| 言語 | en | |||||||||||||||
| 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 | |||||||||||||||
| 著者 |
AMANO, Takashi
× AMANO, Takashi
× MASUDA, Takanori
× ARAO, Keiko
× ARAO, Shinichi
× OKURA, Yasuhiko
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| 著者所属(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare | |||||||||||||||
| 著者所属(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare | |||||||||||||||
| 著者所属(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare | |||||||||||||||
| 著者所属(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare | |||||||||||||||
| 著者所属(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Department of Clinical Radiology, Faculty of Health Science, Hiroshima International University | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Noise | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Standard deviation | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Wiener spectrum | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Normalized noise power spectrum | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | One-dimensional | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Two-dimensional | |||||||||||||||
| 抄録(英) | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 値 | Objective: This study evaluates image noise using two theoretical equations:: standard deviation (σ) as a spatial domain analysis method and Wiener spectrum (WS) as a spatial frequency domain analysis method. The distinction between the two theoretical equations is that σ2 corresponds to the area of the one-dimensional (lD) WS and the volume of the two-dimensional (2D) WS. The aim was to investigate these equations using actual X-ray images. Methods: The X-ray imaging system employed was an AeroDR2 1417HQ (Konica Minolta Japan, Tokyo, Japan), featuring an indirect conversion-type flat panel detector. The 1D WS was obtained using the virtual slit method, while the 2D WS was obtained through the 2D Fourier transform method. Results: The relative error between σ2 measured by the virtual slit size and the area of the 1D WS was less than 0.40%. The relative error between σ2 measured by pixel size and the volume of the 2D WS was close to 0.00%. Conclusion: The accuracy of both theoretical equations was confirmed with a degree of agreement exceeding 99.5%. These minimal relative errors validated the accuracy of the theoretical equations. Given the requirement for analytical values in 2D images, we propose adopting the equation where σ2 equals the volume of the 2D WS rather than the equation where σ2 equals the area of the 1D WS. |
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| 書誌情報 |
en : Kawasaki medical journal 巻 50, p. 97-106, 発行日 2024 |
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| 出版者 | ||||||||||||||||
| 出版者 | Kawasaki Medical Society | |||||||||||||||
| 言語 | en | |||||||||||||||
| ISSN | ||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||
| 収録物識別子 | 03850234 | |||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||
| 収録物識別子 | 24343404 | |||||||||||||||
| 書誌レコードID | ||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||
| 収録物識別子 | AA12029005 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.11482/KMJ-E202450097.pdf | |||||||||||||||
| 記事種別(英) | ||||||||||||||||
| 内容記述 | Regular Article | |||||||||||||||
| 言語 | en | |||||||||||||||
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| 識別子タイプ | URI | |||||||||||||||
| 関連識別子 | https://igakkai.kms-igakkai.com/wp/wp-content/uploads/2024en/KMJ-E202450097.pdf | |||||||||||||||
| 著者版フラグ | ||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||
