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Accelerated augmented Lagrangian method for few-view CT reconstruction

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recently iterative reconstruction algorithms with total variation (TV) regularization have shown its tremendous power in image reconstruction from few-view projection data, but it is much more demanding in computation. In this paper, we propose an accelerated augmented Lagrangian method (ALM) for few-view CT reconstruction with total variation regularization. Experimental phantom results demonstrate that the proposed method not only reconstruct high quality image from few-view projection data but also converge fast to the optimal solution.

Original languageEnglish
Title of host publicationMedical Imaging 2012
Subtitle of host publicationPhysics of Medical Imaging
DOIs
StatePublished - 2012
EventMedical Imaging 2012: Physics of Medical Imaging - San Diego, CA, United States
Duration: 5 Feb 20128 Feb 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8313
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2012: Physics of Medical Imaging
Country/TerritoryUnited States
CitySan Diego, CA
Period5/02/128/02/12

Keywords

  • Augmented Lagrangian method
  • CT reconstruction
  • Total variation (TV)
  • few-view

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