| Item type |
会議発表論文 / Conference Paper(1) |
| 公開日 |
2010-07-01 |
| タイトル |
|
|
タイトル |
Denoising of echocardiograms using wavelet shrinkage |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Echocardiogram |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Ultrasound |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Wavelet Shrinkage |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Speckle Reduction |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_5794 |
|
資源タイプ |
conference paper |
| 著者 |
Nakayama, Kenta
Ohyama, Wataru
Wakabayashi, Tetsushi
Kimura, Fumitaka
Sekioka, Kiyotsugu
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We propose a new speckle reduction algorithm for clinical echocardiograms. The proposed method employs Wavelet Shrinkage to reduce the noise on an ultrasonic signal. In the wavelet shrinkage, at first, original ultrasonic signal is decomposed into wavelet coefficients by multiresolution de-composition using orthogonal wavelet. A threshold of which objective is suppression of noise component is estimated on the resultant complex wavelet coefficient. Wavelet coefficients corresponding to noise are eliminated by soft–thresholding. The noise reduction by the wavelet shrinkage can remove specific frequency components. In this study, we employed the RI-Spline wavelet that was proposed as a shift-invariant moth-er wavelet. We conducted experiments using clinical ultrasonic signals to evaluate the noise reduction performance of the proposed method. Ten clinical subjects were used in the expe-riments. The experimental results show that the algorithm provides superior performance on speckle and noise reduction compared to that of existing speckle reduction method. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
October8, 2009. Media Hall, Mie University, Tsu, Mie, Japan |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Proceedings of the First International Workshop on Regional Innovation Studies : Biomedical Engineering (IWRIS2009) |
| 書誌情報 |
en : Proceedings of the First International Workshop on Regional Innovation Studies : Biomedical Engineering (IWRIS2009)
p. 31-34,
発行日 2009-10-08
|
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/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 |
| 出版者 |
|
|
出版者 |
Graduate School of Regional Innovation Studies, Mie University |
| 資源タイプ（三重大） |
|
|
|
Conference Paper / 会議発表論文 |
60G13600.pdf (1.1 MB)
