Skip to main navigation Skip to search Skip to main content

Parallel imaging via sparse representation over a learned dictionary

  • Shanshan Wang
  • , Xi Peng
  • , Pei Dong
  • , Leslie Ying
  • , David Dagan Feng
  • , Dong Liang
  • Shenzhen Institute of Advanced Technology
  • The University of Sydney

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

7 Scopus citations

Abstract

This paper proposes an adaptive reconstruction method for parallel imaging (PI) via sparse representation over a learned dictionary and also a corresponding dictionary learning based PI (DL-PI) algorithm. DL-PI adopts the 'divide and conquer' strategy to solve the ℓ2-DL reconstruction formulation, with dictionary learning to capture the structure information and a Taylor approximation to update the target image analytically. The proposed approach has been applied to parallel magnetic resonance imaging (MRI) and compared to two latest state-of-the-art methods. The experimental results on in-vivo data show that the DL-PI algorithm possesses strong ability in detail preservation and is competent in artifact removal during the MR image reconstruction process.

Original languageEnglish
Title of host publication2015 IEEE 12th International Symposium on Biomedical Imaging, ISBI 2015
PublisherIEEE Computer Society
Pages687-690
Number of pages4
ISBN (Electronic)9781479923748
DOIs
StatePublished - Jul 21 2015
Event12th IEEE International Symposium on Biomedical Imaging, ISBI 2015 - Brooklyn, United States
Duration: Apr 16 2015Apr 19 2015

Publication series

NameProceedings - International Symposium on Biomedical Imaging
Volume2015-July
ISSN (Print)1945-7928
ISSN (Electronic)1945-8452

Conference

Conference12th IEEE International Symposium on Biomedical Imaging, ISBI 2015
Country/TerritoryUnited States
CityBrooklyn
Period04/16/1504/19/15

Keywords

  • compressed sensing
  • dictionary learning
  • magnetic resonance imaging
  • Parallel imaging

Fingerprint

Dive into the research topics of 'Parallel imaging via sparse representation over a learned dictionary'. Together they form a unique fingerprint.

Cite this