Acoustic Impedance Tomography: Two Reconstruction Procedures

  • Jean-Pierre Lefebvre
Part of the Acoustical Imaging book series (ACIM, volume 14)


Echography is a qualitative imaging technique. Grey levels are arbitrary, without any physical significance. Going further, i.e. attributing to each “pixel” a determined value of a determined parameter needs discussing the problem in physical terms, in inverse scattering terms. This is why the acoustic modelization problem is very important: it is necessary to have a good simple physical modelization, i.e. with the minimum number of parameters. We propose here a very synthetic formulation with only one explicit parameter: the Acoustic Impedance Profile, which is well adapted to backscattering. The non-linear 3-D inverse scattering problem has no solution. So we propose a linear approximation, by using a tomographic reconstruction procedure. A brief description of the advancement of the experimental system is given at the end of the paper.


Inverse Fourier Transform Acoustic Impedance Spectral Cover Diffraction Tomography Synthetic Formulation 
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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Jean-Pierre Lefebvre
    • 1
  1. 1.Laboratoire de Mécanique et d’AcoustiqueCNRSMarseille Cedex-9France

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