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arXiv · 1910.06565

To Recurse or not to Recurse,a Low Dose CT Study

Shabab Bazrafkan·Vincent Van Nieuwenhove·Jan Sijbers
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Abstract

Restoring high-quality CT images from low dose CT counterparts is an ill-posed, nonlinear problem to which Deep Learning approaches have been giving superior solutions compared to classical model-based approaches. In this article, a framework is presented wherein a Recurrent Neural Network (RNN) is utilized to remove the streaking artefacts from low projection number CT imaging. The results indicate similar image restoration performance for the RNN compared to the feedforward network in low noise cases while in high noise levels the RNN returns better results. The computational costs are also compared between RNN and feedforward networks.

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Shabab Bazrafkan, Vincent Van Nieuwenhove, Jan Sijbers. 2019-10-15. To Recurse or not to Recurse,a Low Dose CT Study. https://arxiv.org/abs/1910.06565

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