CT imaging works by reconstructing an object of interest from a collection of projections. Traditional methods such as filtered-back projection (FBP) work on projection images acquired around a fixed rotation axis. However, for some CT problems, it is desirable to perform a joint reconstruction from projection data acquired from multiple rotation axes. In this paper, we present Multi-Pose Fusion, a novel algorithm that performs a joint tomographic reconstruction from CT scans acquired from multiple poses of a single object, where each pose has a distinct rotation axis. Our approach uses multi-agent consensus equilibrium (MACE), an extension of plug-and-play, as a framework for integrating projection data from different poses. We apply our method on simulated data and demonstrate that Multi-Pose Fusion can achieve a better reconstruction result than single pose reconstruction.
@article{arxiv.2209.07561,
title = {Multi-Pose Fusion for Sparse-View CT Reconstruction Using Consensus Equilibrium},
author = {Diyu Yang and Craig A. J. Kemp and Gregery T. Buzzard and Charles A. Bouman},
journal= {arXiv preprint arXiv:2209.07561},
year = {2022}
}
Comments
To appear in 58th Annual Allerton Conference on Communication, Control, and Computing