Correlated and Multi-frequency Diffusion Modeling for Highly Under-sampled MRI Reconstruction

1 code implementation • 2 Sep 2023 • Yu Guan, Chuanming Yu, Shiyu Lu, Zhuoxu Cui, Dong Liang, Qiegen Liu

In this study, leveraging a combination of the properties of k-space data and the diffusion process, our novel scheme focuses on mining the multi-frequency prior with different strategies to pre-serve fine texture details in the reconstructed image.

MRI Reconstruction TAR

Stage-by-stage Wavelet Optimization Refinement Diffusion Model for Sparse-View CT Reconstruction

1 code implementation • 30 Aug 2023 • Kai Xu, Shiyu Lu, Bin Huang, Weiwen Wu, Qiegen Liu

Diffusion models have emerged as potential tools to tackle the challenge of sparse-view CT reconstruction, displaying superior performance compared to conventional methods.

One Sample Diffusion Model in Projection Domain for Low-Dose CT Imaging

2 code implementations • 7 Dec 2022 • Bin Huang, Liu Zhang, Shiyu Lu, Boyu Lin, Weiwen Wu, Qiegen Liu

Therefore, we propose a fully unsupervised one sample diffusion model (OSDM)in projection domain for low-dose CT reconstruction.

Computed Tomography (CT)