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DiffOp-net: A Differential Operator-based Fully Convolutional Network for Unsupervised Deformable Image Registration
April 8, 2024, 4:45 a.m. | Jiong Wu
cs.CV updates on arXiv.org arxiv.org
Abstract: Existing unsupervised deformable image registration methods usually rely on metrics applied to the gradients of predicted displacement or velocity fields as a regularization term to ensure transformation smoothness, which potentially limits registration accuracy. In this study, we propose a novel approach to enhance unsupervised deformable image registration by introducing a new differential operator into the registration framework. This operator, acting on the velocity field and mapping it to a dual space, ensures the smoothness of …
abstract accuracy arxiv cs.cv differential fields image metrics network novel registration regularization study transformation type unsupervised
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