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Xuanyu Tian

8 accepted papers

2026

Improving 2D Diffusion Models for 3D Medical Imaging with Inter‑Slice Consistent Stochasticity

ICLR 2026poster

3D medical imaging is in high demand and essential for clinical diagnosis and scientific research. Currently, diffusion models have become an effective tool for medical imaging reconstruction thanks to their ability to learn rich, high‑quality data priors. However, learning the 3D data distribution…

Cited by 0SourcecodeScholar
2026

NICE: Neural Implicit Craniofacial Model for Orthognathic Surgery Prediction

AAAI 2026technical

Orthognathic surgery is a crucial intervention for correcting dentofacial skeletal deformities to enhance occlusal functionality and facial aesthetics. Accurate postoperative facial appearance prediction remains challenging due to the complex nonlinear interactions between skeletal movements and fac

Cited by 0SourcePDFScholar
2026

Plug-and-Play Diffusion Meets ADMM: Dual-Variable Coupling for Robust Medical Image Reconstruction

ICML 2026poster

Plug-and-Play diffusion prior (PnPDP) frameworks have emerged as a powerful paradigm for solving imaging inverse problems by treating pretrained generative models as modular priors. However, we identify a critical flaw in prevailing PnP solvers (e.g., based on HQS or Proximal Gradient): they functio…

Cited by 0SourceScholar
2026

Reference-Free Meta-Learning for Generalized Implicit Neural Representation in Efficient MRI Reconstruction

ICML 2026poster

Implicit Neural Representation (INR) has emerged as a powerful paradigm for continuous MRI reconstruction. However, standard unsupervised INR requires time-consuming optimization from scratch for each scan, hindering clinical deployment. This work presents IPOD, a Reference-Free Meta-Learning framew…

Cited by 0SourceScholar
2026

Resolving Blind Inverse Problems under Dynamic Range Compression via Structured Forward Operator Modeling

ICML 2026poster

Recovering radiometric fidelity from unknown dynamic range compression (UDRC), such as low-light enhancement and HDR reconstruction, is a challenging blind inverse problem, due to the unknown forward model and irreversible information loss introduced by compression. To address this challenge, we fir…

Cited by 0SourceScholar
2026

Unsupervised Motion-Compensated Decomposition for Cardiac MRI Reconstruction via Neural Representation

AAAI 2026technical

Cardiac magnetic resonance (CMR) imaging is widely used to characterize cardiac morphology and function. To accelerate CMR imaging, various methods have been proposed to recover high-quality spatiotemporal CMR images from highly undersampled k-t space data. However, current CMR reconstruction techni

Cited by 0SourcePDFScholar
2025

Moner: Motion Correction in Undersampled Radial MRI with Unsupervised Neural Representation

ICLR 2025spotlight

Motion correction (MoCo) in radial MRI is a particularly challenging problem due to the unpredictability of subject movement. Current state-of-the-art (SOTA) MoCo algorithms often rely on extensive high-quality MR images to pre-train neural networks, which constrains the solution space and leads to…

2025

Unsupervised Self-Prior Embedding Neural Representation for Iterative Sparse-View CT Reconstruction

AAAI 2025technical

Emerging unsupervised implicit neural representation (INR) methods, such as NeRP, NeAT, and SCOPE, have shown great potential in addressing sparse-view computed tomography (SVCT) inverse problems. While these INR-based methods perform well on relatively dense SVCT reconstructions, they struggle to a…