2008年10月
シグモイド関数型ウェーブレット展開係数変換曲線による医用画像のコントラスト強調
医用画像情報学会雑誌
- ,
- ,
- 巻
- 25
- 号
- 3
- 開始ページ
- 48
- 終了ページ
- 53
- 記述言語
- 日本語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.11318/mii.25.48
- 出版者・発行元
- 医用画像情報学会
Pre-processing is important for digital medical images because it can contribute to the improvement of diagnostic accuracy with medical images and computer-aided diagnosis. In this paper, a novel sigmoid-type transfer curve for wavelet coefficient weighting adjustment was proposed to improve contrast of medical images. The proposed method was applied to chest radiographs, mammograms and chest CT images, and then its performance was quantitatively evaluated with contrast improvement ratio. As a result, contrasts of all applied images were obviously improved. Compared with the conventional exponential-type transfer curve, the proposed sigmoid-type transfer curve was more effective with a statistical significance(p<0.05).
- リンク情報
- ID情報
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- DOI : 10.11318/mii.25.48
- CiNii Articles ID : 130000097653