Department of Electrical Engineering Scatter Reduction by Exploiting Behavior of Convolutional Neural Networks in Frequency Domain Carlos Jerez Department of Electrical Engineering

Problem Anti-scatter grids are costly and hard to operate A cheaper and efficient solution is required Image taken from:

Proposed Solution To apply CNNs and exploit its behavior in the frequency domain. Splitting the signal in frequency bands and dilating high frequency bands is the key!

Some results

More results!

Conclusions In this work, we showed that CNNs can outperform current approaches at doing scatter correction. Additionally, we explored the ideas of splitting in frequency bands and dilation, which both were proven to improve the result produced by the CNN

Thanks!