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エントロピーに基づく適応型近傍コントラスト強調法の改良
http://hdl.handle.net/10191/4861
http://hdl.handle.net/10191/486198ddf767-549c-48d3-ae9c-2ce5b1a7e2be
名前 / ファイル | ライセンス | アクション |
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jsrt_61_2_268_276_2005.pdf (193.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-05-29 | |||||
タイトル | ||||||
タイトル | エントロピーに基づく適応型近傍コントラスト強調法の改良 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | エントロピーに基づく適応型近傍コントラスト強調法の改良 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Image processing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Contrast enhancement | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Noise reduction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Entropy | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他のタイトル | ||||||
その他のタイトル | Improvement in the Performance of the Adaptive Neighborhood Contrast Enhancement Technique Based on Entropy | |||||
著者 |
千葉, 怜那
× 千葉, 怜那× 李, 鎔範× 蔡, 篤儀 |
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著者別名 | ||||||
識別子 | 47543 | |||||
識別子Scheme | WEKO | |||||
姓名 | Chiba, Reina | |||||
著者別名 | ||||||
識別子 | 9 | |||||
識別子Scheme | WEKO | |||||
姓名 | Lee, Yongbum | |||||
著者別名 | ||||||
識別子 | 47545 | |||||
識別子Scheme | WEKO | |||||
姓名 | Tsai, Du-yih | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This paper presents an improved adaptive-neighborhood-contrast-enhancemen(t ANCE)method for the improvement of medical image quality. The ANCE method consists of computing the local contrast around each pixel using a variable neighborhood whose size depends on the statistical properties around the given pixel. The obtained contrast image is then transformed into a new contrast image using a contrast enhancement function. Finally, a contrast-enhanced image is obtained by applying inverse contrast transform to the previous step. This technique provides the advantages of enhancing or preserving image contrast while suppressing noise. However, it does have a drawback. The performance of the ANCE method largely depends on how to determine the parameters used in the processing steps. The present study proposes a novel method for optimal and automatic determination of several parameters using entropy. To quantitatively compare the performance of the proposed method with that of the ANCE method, computer-simulated images are generated. The output-to-input SNR level and the mean squared error are used as comparison criteria. Results demonstrated the superiority of the proposed method. Moreover, we have applied our new algorithm to echocardiograms and mammograms. Our results showed that the proposed method has the potential to become useful for improving the image quality of medical images. | |||||
書誌情報 |
日本放射線技術学会雑誌 en : 日本放射線技術学会雑誌 巻 61, 号 2, p. 268-276, 発行日 2005-02 |
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出版者 | ||||||
出版者 | 日本放射線技術学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03694305 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00197773 | |||||
著者版フラグ | ||||||
値 | publisher |