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21 September 2015 Superresolution imaging from nonlinear inverse scattering
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Abstract
Inverse scattering algorithms typically rely on weak scattering approximations and the inversion of far field data on an Ewald sphere. This, in turn, fixes the resolution of the computed image. However, it has long been observed that when multiple scattering occurs in a strongly interacting object, and a nonlinear inversion method is employed to image it, the resulting image can reveal subwavelength resolution. We have observed this phenomenon using a cepstral filtering approach and characterize it more fully here.
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R. Shane Ritter and M. A. Fiddy "Superresolution imaging from nonlinear inverse scattering", Proc. SPIE 9600, Image Reconstruction from Incomplete Data VIII, 96000D (21 September 2015); https://doi.org/10.1117/12.2188861
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