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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

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Wenjun Xia

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Preprint Aug 2026

Shared-Structure 4D Spectral Gaussian Representation for Sparse-View Spectral CT Reconstruction

Sparse-view spectral computed tomography (CT) reconstructs energy-resolved attenuation volumes from limited projection views, requiring simultaneous handling of angular undersampling and spectral coupling. We propose a SharedStructure 4D Spectral Gaussian Representation (4D-SG) that learns shared Gaussian geometry from...

Jiancheng Fang, Shao-Yu Wang, Wenjun Xia et al. · 0 citations

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