TITLE

Improving Ultrasonic C-Scan Resolution Using the Hilbert-Huang Transform

AUTHOR(S)
Leisk, G. G.; Miller, E. S.; Murphy, D. J.
PUB. DATE
April 2005
SOURCE
AIP Conference Proceedings;2005, Vol. 760 Issue 1, p889
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Hilbert Huang Transform (HHT) is applied to ultrasonic mapping of simulated defects in an aluminum plate. C-Scanning tests are conducted using pulse-echo ultrasound on a water-immersed aluminum plate containing a matrix of 16 unevenly-spaced flat-bottomed holes. After decomposing the time-gated echo waveforms into simpler waveforms with HHT, the Hilbert transform is applied and a single RMS parameter derived for every transducer location. HHT provides good capability for sizing and locating defects and excellent defect/non-defect contrast. There are clear implications for improved mapping of more subtle defects. © 2005 American Institute of Physics
ACCESSION #
16933114

 

Related Articles

  • On a Hyper Hilbert Transform. Chen, Jiecheng; Ding, Yong; Fan, Dashan // Chinese Annals of Mathematics;Oct2003, Vol. 24 Issue 4, p475 

    The authors define the directional hyper Hilbert transform and give its mixed norm estimate. The similar conclusions for the directional fractional integral of one dimension are also obtained in this paper. As an application of the above results, the authors give the L[sup p]-boundedness for a...

  • Identity for a spectral function connected with the Hilbert transform. Zeinstra, R.; Alenitsyn, A.; Arshad, M. // Journal of Mathematical Sciences;Apr2008, Vol. 150 Issue 1, p1799 

    We give a new proof of the identity, known as the �sum rule� in the statistical quantum mechanics, for the integral over the real axis of a nonlinear combination of a function u(x) in a certain class and its Hilbert transform. Examples where the identity fails are given Bibliography: 5...

  • The Hilbert Transform and Fine Continuity. Twomey, J. B. // Bulletin of the Irish Mathematical Society;Winter2006, Issue 58, p81 

    It is shown that the Hilbert transform of a function having bounded variation in a finite interval [c, d] has fine continuity properties at points in [c, d] outside certain exceptional sets.

  • Robust Speech Feature Extraction Using the Hilbert Transform Spectrum Estimation Method. Huan Zhao; He Liu; Kai Zhao; Yong Yang // International Journal of Digital Content Technology & its Applic;Dec2011, Vol. 5 Issue 12, p85 

    The performance of traditional mel-frequency cepstral coefficients (MFCC) speech feature extraction method decreases drastically in the complex noisy environment. To improve the performance and robustness of speech recognition system, which is based on spectral envelope estimation method, the...

  • Self-similar solutions for a transport equation with non-local flux. CASTRO, Angel; CÓRDOBA, Diego // Chinese Annals of Mathematics;Sep2009, Vol. 30 Issue 5, p505 

    The authors construct self-similar solutions for an N-dimensional transport equation, where the velocity is given by the Riezs transform. These solutions imply nonuniqueness of weak solution. In addition, self-similar solution for a one-dimensional conservative equation involving the Hilbert...

  • EXTERIOR/INTERIOR PROBLEM FOR THE CIRCULAR MEANS TRANSFORM WITH APPLICATIONS TO INTRAVASCULAR IMAGING. AMBARTSOUMIAN, GAIK; KUNYANSKY, LEONID // Inverse Problems & Imaging;May2014, Vol. 8 Issue 2, p339 

    Exterior inverse problem for the circular means transform (CMT) arises in the intravascular photoacoustic imaging (IVPA), in the intravascular ultrasound imaging (IVUS), as well as in radar and sonar. The reduction of the IPVA to the CMT is quite straightforward. As shown in the paper, in IVUS...

  • Three-Dimensional Unsteady State Temperature Distribution of Thin Rectangular Plate with Moving Point Heat Source. Ahire, Yogita M.; Ghadle, Kirtiwant P. // Indian Journal of Materials Science;8/16/2016, p1 

    This paper deals with the study of thermal stresses in thin rectangular plate subjected to point heat source which changes its place along x-axis. Governing heat conduction equation has been solved by using integral transform technique. Results are obtained in the form of infinite series. As a...

  • ultrasonography.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p2399 

    An encyclopedia entry for "ultrasonography," which refers to the use of ultrasound to produce an image or photograph of an organ or tissue, is presented.

  • On a Result of Telyakovskii and Multiple Hilbert Transforms with Polynomial Phases. Oskolkov, K. I. // Mathematical Notes;Jul/Aug2003, Vol. 74 Issue 1/2, p232 

    In this paper, we prove a multiple analog of the theorem proved by Arkhipov and the author in 1987, which provides an estimate for the discrete Hilbert transform with polynomial phase. For the linear case, the corresponding estimates of the sum of multiple trigonometric series was proved by...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics