Friday, April 22, 2016

Presentation Title

Super-Resolution Imaging from Non-Linear Inverse Scattering

Location

Benner Fishbowl

Start Date

22-4-2016 3:00 PM

End Date

22-4-2016 3:30 PM

Description

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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Apr 22nd, 3:00 PM Apr 22nd, 3:30 PM

Super-Resolution Imaging from Non-Linear Inverse Scattering

Benner Fishbowl

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.