Development and evaluation of minimal-scan reconstruction algorithms for diffraction tomography

Research output: Contribution to journalConference articlepeer-review

Abstract

Diffraction tomography (DT) is a tomographic inversion technique that reconstructs the spatially variant refractive index distribution of a scattering object, and it can be viewed as a generalization of conventional X-ray computed tomography (CT) where X-rays have been replaced with a diffracting acoustical or electromagnetic wavefield. It is widely believed that measurements from a full angular range of 2π are generally required to exactly reconstruct a complex-valued refractive index distribution. However, we have recently revealed that one needs measurements only over the angular range zero to 270 degrees to perform an exact reconstruction, and we developed minimal-scan filtered backpropagation (MS-FBPP) algorithms to achieve this. In this work, we review and numerically implement a recently developed family of minimal-scan reconstruction algorithms for DT that effectively operate by transforming the minimal-scan DT reconstruction problem into a conventional full-scan X-ray CT reconstruction problem.

Original languageEnglish (US)
Pages (from-to)860-866
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4322
Issue number2
DOIs
StatePublished - Jan 1 2001
Externally publishedYes
EventMedical Imaging 2001 Image Processing - San Diego, CA, United States
Duration: Feb 19 2001Feb 22 2001

Keywords

  • Diffraction tomography
  • Image reconstruction
  • Minimal-scan tomography

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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