Modified SART with changing relaxation factor (CRF-MSART) applied to optical CT in finitely orthogonal views

Yi Wang*, Qun Hao, Yongtian Wang*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Optical Computed Tomography (OCT) is available for 3-D distribution of solution's refractive index. The 3-D distribution can be fitted up with divers 2-D slices. Thus, the discrete mathematical model of 3-D refractive index data reconstruction can be framed in a linear ill-posed problem. We proposed a practical reconstruction algorithm, Modified SART with Changing Relaxation Factor based on Simulated Annealing algorithm (CRF-MART), which is a modification of Simultaneous Algebraic Reconstruction Technique (SART). Furthermore, a computer simulation of the reconstruction algorithm was taken in the case of incomplete data. It is shown that reconstructed results have better smoothness and smaller residual, which are a good approximation to the true value.

Original languageEnglish
Article number130
Pages (from-to)705-713
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5638
Issue numberPART 2
DOIs
Publication statusPublished - 2005
EventOptical Design and Testing II - Beijing, United States
Duration: 8 Nov 200411 Nov 2004

Keywords

  • 3-D refractive index data reconstruction
  • Changeable relaxation factor
  • Incomplete data OCT
  • SART
  • Simulated Annealing algorithm

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