• Corpus ID: 239616237

A Data-Driven Reconstruction Technique based on Newton's Method for Emission Tomography

@article{Koutsantonis2021ADR,
  title={A Data-Driven Reconstruction Technique based on Newton's Method for Emission Tomography},
  author={Loizos Koutsantonis and Tiago Carneiro and Emmanuel Kieffer and Fr{\'e}d{\'e}ric Pinel and Pascal Bouvry},
  journal={ArXiv},
  year={2021},
  volume={abs/2110.11396}
}
In this work, we present the Deep Newton Reconstruction Network (DNR-Net), a hybrid data-driven reconstruction technique for emission tomography inspired by Newton’s method, a well-known iterative optimization algorithm. The DNR-Net employs prior information about the tomographic problem provided by the projection operator while utilizing deep learning approaches to a) imitate Newton’s method by approximating the Newton descent direction and b) provide data-driven regularisation. We demonstrate… 

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