Sparse keypoint segmentation of lung fissures: efficient geometric deep learning for abstracting volumetric images

Published: 01 Jan 2025, Last Modified: 02 Nov 2025Int. J. Comput. Assist. Radiol. Surg. 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Lung fissure segmentation on CT images often relies on 3D convolutional neural networks (CNNs). However, 3D-CNNs are inefficient for detecting thin structures like the fissures, which make up a tiny fraction of the entire image volume. We propose to make lung fissure segmentation more efficient by using geometric deep learning (GDL) on sparse point clouds.
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