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Information-Entropy Measure for Evaluation of Image Quality
http://hdl.handle.net/10191/6249
http://hdl.handle.net/10191/62491c4504c6-4886-4f5b-b01c-4373ed5fd29b
名前 / ファイル | ライセンス | アクション |
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05_0004.pdf (708.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Information-Entropy Measure for Evaluation of Image Quality | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | medical images | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | image quality | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | image processing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | information entropy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | performance evaluation | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Tsai, Du-Yih
× Tsai, Du-Yih× Lee, Yongbum× Matsuyama, Eri |
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著者別名 | ||||||
識別子 | 6664 | |||||
識別子Scheme | WEKO | |||||
姓名 | 蔡, 篤儀 | |||||
言語 | ja | |||||
著者別名 | ||||||
識別子 | 9 | |||||
識別子Scheme | WEKO | |||||
姓名 | 李, 鎔範 | |||||
言語 | ja | |||||
著者別名 | ||||||
識別子 | 6666 | |||||
識別子Scheme | WEKO | |||||
姓名 | 松山, 江里 | |||||
言語 | ja | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This paper presents a simple and straightforward method for synthetically evaluating digital radiographic images by a single parameter in terms of transmitted information (TI). The features of our proposed method are: (1) simplicity of computation, (2) simplicity of experimentation, and (3) combined assessment of image noise and resolution (blur). Two acrylic step wedges with 0-1-2-3-4-5 mm and 0-2-4-6-8-10 mm in thickness were used as phantoms for experiments. In the present study, three experiments were conducted. First, in order to investigate the relation between the value of TI and image noise, various radiation doses by changing exposure time were employed. Second, we examined the relation between the value of TI and image blurring by shifting the phantoms away from the center of the x-ray beam area toward the cathode end when imaging was performed. Third, we analyzed the combined effect of deteriorated blur and noise on the images by employing three smoothing filters. Experimental results show that the amount of TI is closely related to both image noise and image blurring. The results demonstrate the usefulness of our method for evaluation of physical image quality in medical imaging. | |||||
言語 | en | |||||
書誌情報 |
en : Journal of Digital Imaging 巻 21, 号 3, p. 338-347, 発行日 2008-09 |
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出版者 | ||||||
言語 | en | |||||
出版者 | Springer New York | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0897-1889 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10724308 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1007/s10278-007-9044-5 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
著者版フラグ | ||||||
値 | author | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://www.springerlink.com/content/109379/ |