Author

Jiang Liu

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Preprint Aug 2026

Phase-Aligned Finite-Fourier Periodic Deformation for 4D Medical Image Interpolation

4D medical image interpolation aims to recover missing volumes from sparsely observed time points and is important for dynamic anatomical analysis in applications such as cardiac MRI and thoracic CT, where motion is often repetitive or near-periodic over clinically relevant intervals. A key challenge is that this struc...

Hao-Jin Li, Hengzhuo Wang, Zhiheng Ma et al. · 0 citations

Preprint Aug 2026

Low-Rank Velocity Fields as a Structural Prior for Unsupervised 4D Medical Image Interpolation

This work proposes low-rank velocity fields as a structural prior, constraining motion to a structured Tucker low-rank velocity field space that decomposes motion into globally shared spatial bases and a compact sample-specific core, thereby encouraging spatially correlated, anatomy-consistent deformation while suppres...

Hao-Jin Li, Hengzhuo Wang, Chang Liu et al. · 0 citations