On the Influence of Mother Wavelet in Denoising of Ultrasonic Hepatic Signals with Undecimated Wavelet Transform

被引:0
作者
Rodriguez-Hernandez, M. A. [1 ]
机构
[1] Univ Politecn Valencia, ITACA, Camino Vera S-N, E-46022 Valencia, Spain
来源
2017 GLOBAL MEDICAL ENGINEERING PHYSICS EXCHANGES/PAN AMERICAN HEALTH CARE EXCHANGES (GMEPE/PAHCE) | 2017年
关键词
Wavelet; denoising; ultrasonic; undecimated; hepatic; NOISE-REDUCTION; FLAW DETECTION; SHRINKAGE;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
In this work it is evaluated the influence of mother wavelet in denoising of ultrasonic hepatic signals with Undecimated Wavelet Transform (UWT). First, it is performed a study over simulated ultrasonic signals with different types of mother wavelets and thresholds. The results of this evaluation are applied to ultrasonic hepatic signals. This work shows both the influence of the mother wavelet and the threshold in the final denoised traces.
引用
收藏
页数:4
相关论文
共 28 条
[1]   Signal detection and noise suppression using a wavelet transform signal processor: Application to ultrasonic flaw detection [J].
Abbate, A ;
Koay, J ;
Frankel, J ;
Schroeder, SC ;
Das, P .
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1997, 44 (01) :14-26
[2]  
AKAY M, 1998, TIME FREQUENCY WAVEL, P123
[3]  
[Anonymous], 1992, CBMS-NSF Reg. Conf. Ser. in Appl. Math
[4]  
[Anonymous], 1995, TRANSLATION INVARIAN, DOI [10.1002/cpa.3160410705, DOI 10.1002/CPA.3160410705]
[5]  
[Anonymous], 1999, WAVELET TOUR SIGNAL
[6]   A 1D wavelet filtering for ultrasound images despeckling [J].
Dahdouh, Sonia ;
Dubois, Mathieu ;
Frenoux, Emmanuelle ;
Osorio, Angel .
MEDICAL IMAGING 2010: ULTRASONIC IMAGING, TOMOGRAPHY, AND THERAPY, 2010, 7629
[7]   IDEAL SPATIAL ADAPTATION BY WAVELET SHRINKAGE [J].
DONOHO, DL ;
JOHNSTONE, IM .
BIOMETRIKA, 1994, 81 (03) :425-455
[8]  
DONOHO DL, 1995, J ROY STAT SOC B MET, V57, P301
[9]   Adapting to unknown smoothness via wavelet shrinkage [J].
Donoho, DL ;
Johnstone, IM .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1995, 90 (432) :1200-1224
[10]   Wavelet threshold estimators for data with correlated noise [J].
Johnstone, IM ;
Silverman, BW .
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 1997, 59 (02) :319-351