Some New Approaches To Inverse Scattering

R. H. T. Bates; R. A. Minard

doi:10.1117/12.935836

22 September 1983 Some New Approaches To Inverse Scattering

R. H. T. Bates, R. A. Minard

Proceedings Volume 0413, Inverse Optics I; (1983) https://doi.org/10.1117/12.935836
Event: 1983 Technical Symposium East, 1983, Arlington, United States

Abstract

Despite its popularity (due to its simplicity) the Born/Rayleigh-Gans approximation has a tiny range of practical applicability. WKB (called LSJWKB here) transformation of the wave equation suggests an apparently widely valid monochromatic quasi-Born inverse scattering approximation, which promises to lead to images which, while suffering from irreducible geometric distortion, exhibit faithful contrast. Virtually all monochromatic images are degraded by speckle artefacts, which can be inhibited by averaging over a wide band of frequencies. We claim here that our recently developed coherent shift-and-add processing of ultra-sonic scattering data provides support for our new interpretation of the LSJWKB-transformed wave equation. Experimental results, demonstrating image enhancement simultaneously with speckle reduction, are presented.

Citation Download Citation

R. H. T. Bates and R. A. Minard "Some New Approaches To Inverse Scattering", Proc. SPIE 0413, Inverse Optics I, (22 September 1983); https://doi.org/10.1117/12.935836

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