I am a Ph.D. student at the KAIST MRI Lab, advised by Sung-Hong Park. I work on deep learning for magnetic resonance imaging, with interests spanning medical image analysis, computer vision, image-to-image translation and generative models.
🎓 Education
KAIST Daejeon, South Korea
Sep. 2026 - PresentPh.D. in Deep Learning for MRI
MRI Lab, advised by Sung-Hong Park
IMT Mines Alès Alès, France
Sep. 2022 - Jun. 2026M.Sc. in Computer Science
Lycée Henri Loritz Nancy, France
Sep. 2020 - Sep. 2022Scientific Preparatory Classes (PCSI – PSI*)
🗂️ Experiences
KAIST Daejeon, South Korea
Sep. 2025 - Sep. 2026Visiting Student Researcher
MRI Lab, advised by Sung-Hong Park
- Physics-guided MLP and 3D U-Net, each adapted per patient
- Biophysical forward model built into the loss for physiological consistency
- Outperformed NLS and ADMM on PSNR, RMSE and SSIM over 16 in-vivo subjects
EDI — Institute of Electronics and Computer Science Riga, Latvia
May 2024 - Aug. 2024Research Assistant, Reinforcement Learning
Robotics and Machine Perception laboratory, supervised by Roberts Kadiķis
- UR5e arm and Robotiq gripper simulated in MuJoCo and Isaac Lab
- Forked OpenAI Gym so the environment ran under Stable-Baselines
- PPO, DDPG and SAC trained and compared on a pick-and-place task
INRAE Montpellier, France
Jan. 2024 - May 2024Research Assistant, Computer Vision
Supervised by Baptiste Magnier and Clément Plessis
- Detection and segmentation of foliar disease on wheat leaves
- Packaged as a tool for automated symptom analysis
- 8,000+ leaf images processed, enabling large-scale phenotyping
📖 Publications
Estimating blood-brain barrier exchange rate using diffusion-weighted arterial spin labeling and physics-guided neural networks
NeuroImage, vol. 338, p. 122132, 2026
@article{ahn2026kwpgnn,
title = {Estimating blood-brain barrier exchange rate using diffusion-weighted arterial spin labeling and physics-guided neural networks},
journal = {NeuroImage},
volume = {338},
pages = {122132},
year = {2026},
issn = {1053-8119},
doi = {10.1016/j.neuroimage.2026.122132},
url = {https://www.sciencedirect.com/science/article/pii/S1053811926004477},
author = {Hyun-Seo Ahn and Titouan {Le Gourrierec} and Yujin Jung and Seonghyuk Kim and Seon-Ha Hwang and Jaeseok Park and Dong Young Lee and Chul Ho Sohn and Sung-Hong Park}
}