Citation

BibTex format

@inproceedings{Zhang:2026:10.1007/978-3-032-09513-8_10,
author = {Zhang, H and Huang, J and Wu, Y and Dai, C and Wang, F and Zhang, Z and Yang, G},
doi = {10.1007/978-3-032-09513-8_10},
pages = {95--105},
title = {Lightweight Hypercomplex MRI Reconstruction: A Generalized Kronecker-Parameterized Approach},
url = {http://dx.doi.org/10.1007/978-3-032-09513-8_10},
year = {2026}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - Magnetic Resonance Imaging (MRI) is crucial for clinical diagnostics but is hindered by prolonged scan times. Current deep learning models enhance MRI reconstruction but are often memory-intensive and unsuitable for resource-limited systems. This paper introduces a lightweight MRI reconstruction model leveraging Kronecker-Parameterized Hypercomplex Neural Networks to achieve high performance with reduced parameters. By integrating Kronecker-based modules, including Kronecker MLP, Kronecker Window Attention, and Kronecker Convolution, the proposed model efficiently extracts spatial features while preserving representational power. We introduce Kronecker U-Net and Kronecker SwinMR, which maintain high reconstruction quality with approximately 50% fewer parameters compared to existing models. Experimental evaluation on the FastMRI dataset demonstrates competitive PSNR, SSIM, and LPIPS metrics, even at high acceleration factors (8× and 16×), with no significant performance drop. Additionally, Kronecker variants exhibit superior generalization and reduced overfitting on limited datasets, facilitating efficient MRI reconstruction on hardware-constrained systems. This approach sets a new benchmark for parameter-efficient medical imaging models. Code is available at:https://github.com/Whethe/HyperKron-MRI-Recon.
AU - Zhang,H
AU - Huang,J
AU - Wu,Y
AU - Dai,C
AU - Wang,F
AU - Zhang,Z
AU - Yang,G
DO - 10.1007/978-3-032-09513-8_10
EP - 105
PY - 2026///
SN - 0302-9743
SP - 95
TI - Lightweight Hypercomplex MRI Reconstruction: A Generalized Kronecker-Parameterized Approach
UR - http://dx.doi.org/10.1007/978-3-032-09513-8_10
ER -

Contact


For enquiries about the MRI Physics Collective, please contact:

Mary Finnegan
Senior MR Physicist at the Imperial College Healthcare NHS Trust

Pete Lally
Assistant Professor in Magnetic Resonance (MR) Physics at Imperial College

Jan Sedlacik
MR Physicist at the Robert Steiner MR Unit, Hammersmith Hospital Campus