Denoising of Hepatic Signals with Partial Cycle Spinning

被引:0
作者
Rodriguez-Hernandez, Miguel A. [1 ]
机构
[1] Univ Politecn Valencia, ITACA, E-46022 Valencia, Spain
来源
2016 GLOBAL MEDICAL ENGINEERING PHYSICS EXCHANGES/PAN AMERICAN HEALTH CARE EXCHANGES (GMEPE/PAHCE) | 2016年
关键词
Wavelet; denoising; Partial Cycle Spinning; hepatic; medical; WAVELET TRANSFORM; NOISE-REDUCTION;
D O I
暂无
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Partial Cycle Spinning (PCS) is a technique that allows denoising of signals with lower complexity than Cycle Spinning (CS). PCS is a simplified version of CS, in which only a subset of the shifts used in CS is used. The results obtained with PCS show some variability depending on the shifts chosen. The quality of the processed signals can be improved by taking advantage of this variability. This paper presents a study of the influence of the choice of shifts on the PCS algorithm for medical signal denoising applications, to be more precise for hepatic signals of ultrasonic origin. The results obtained, both for synthetic signals and ultrasonic hepatic signals, show how the choice of shifts in the PCS algorithm influences the quality of the final processed signal
引用
收藏
页数:6
相关论文
共 34 条
  • [1] Signal detection and noise suppression using a wavelet transform signal processor: Application to ultrasonic flaw detection
    Abbate, A
    Koay, J
    Frankel, J
    Schroeder, SC
    Das, P
    [J]. IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1997, 44 (01) : 14 - 26
  • [2] Akay M., 1998, Time Frequency and Wavelets in Biomedical Signal Processing
  • [3] [Anonymous], SIGNAL PROCESSING FO
  • [4] [Anonymous], 1995, TRANSLATION INVARIAN, DOI [10.1002/cpa.3160410705, DOI 10.1002/CPA.3160410705]
  • [5] [Anonymous], 1999, WAVELET TOUR SIGNAL
  • [6] ON THE REPRESENTATION OF OPERATORS IN BASES OF COMPACTLY SUPPORTED WAVELETS
    BEYLKIN, G
    [J]. SIAM JOURNAL ON NUMERICAL ANALYSIS, 1992, 29 (06) : 1716 - 1740
  • [7] FAST WAVELET TRANSFORMS AND NUMERICAL ALGORITHMS .1.
    BEYLKIN, G
    COIFMAN, R
    ROKHLIN, V
    [J]. COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS, 1991, 44 (02) : 141 - 183
  • [8] A 1D wavelet filtering for ultrasound images despeckling
    Dahdouh, Sonia
    Dubois, Mathieu
    Frenoux, Emmanuelle
    Osorio, Angel
    [J]. MEDICAL IMAGING 2010: ULTRASONIC IMAGING, TOMOGRAPHY, AND THERAPY, 2010, 7629
  • [9] Daubechies, 1992, 10 LECT WAVELETS
  • [10] DE-NOISING BY SOFT-THRESHOLDING
    DONOHO, DL
    [J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 1995, 41 (03) : 613 - 627