학술논문
Exploring Deep Registration Latent Spaces
Document Type
Working Paper
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Abstract
Explainability of deep neural networks is one of the most challenging and interesting problems in the field. In this study, we investigate the topic focusing on the interpretability of deep learning-based registration methods. In particular, with the appropriate model architecture and using a simple linear projection, we decompose the encoding space, generating a new basis, and we empirically show that this basis captures various decomposed anatomically aware geometrical transformations. We perform experiments using two different datasets focusing on lungs and hippocampus MRI. We show that such an approach can decompose the highly convoluted latent spaces of registration pipelines in an orthogonal space with several interesting properties. We hope that this work could shed some light on a better understanding of deep learning-based registration methods.
Comment: 13 pages, 5 figures + 3 figures in supplementary materials Accepted to DART 2021 workshop
Comment: 13 pages, 5 figures + 3 figures in supplementary materials Accepted to DART 2021 workshop