Metal artifact reduction algorithm using directional interpolation by sinogram decomposed derivatives

Haewon Nam, Jongduk Baek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

High-density objects such as metal prostheses, surgical clips, or dental fillings generate streak-like artifacts in computed tomography images. In this study, we present a novel method for cone-beam CT metal artifact reduction by approximate missing information into the corrupted sinogram. We used sinogram decomposition to compute the structural tensor of the sinogram to estimate the direction. The proposed algorithm consists of two main steps. The first step decomposes the sinogram to estimate rough structure of the sinogram on the metal corrupted part. Using the decomposed sinogram, we estimate the missing sinogram on the second part. We compared the result of our algorithm with metal artifact reduction with different interpolation methods. We showed that our algorithm outperformed other interpolation algorithms such as linear, moving least squares, and adaptive moving least squares algorithms.

Original languageEnglish
Title of host publication2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467398626
DOIs
Publication statusPublished - 2016 Oct 3
Event2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 - San Diego, United States
Duration: 2015 Oct 312015 Nov 7

Publication series

Name2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

Other

Other2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
CountryUnited States
CitySan Diego
Period15/10/3115/11/7

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging
  • Instrumentation

Fingerprint Dive into the research topics of 'Metal artifact reduction algorithm using directional interpolation by sinogram decomposed derivatives'. Together they form a unique fingerprint.

  • Cite this

    Nam, H., & Baek, J. (2016). Metal artifact reduction algorithm using directional interpolation by sinogram decomposed derivatives. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 [7582157] (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2015.7582157