About Me

I am a Ph.D. student at Yonsei University, advised by Prof. Dong-Hyun Kim, in the Medical Imaging Artificial Intelligence Lab (MILAB). In 2025, I worked as a visiting student at the Vision and Learning Lab (VLLab), UC Merced, under the supervision of Prof. Ming-Hsuan Yang, broadening my research into generative modeling and image reconstruction.

My research addresses the missing modality problem in MRI, where incomplete acquisitions are common in clinical practice yet severely limit downstream analysis. I develop methods that leverage knowledge distillation, generative modeling, and disentangled representation learning to enable reliable diagnosis from incomplete data. These techniques, learning from incomplete data and recovering missing information, apply broadly across computer vision. My wider interests include super-resolution, motion artifact correction, and segmentation in brain MRI.

Seoul, Republic of Korea yoonseokchoi@yonsei.ac.kr
Open to Collaborations

Latest News

Jul 2025
Our MICCAI 2025 paper "TESLA" has been selected for an Oral presentation (top 2.2%)
Jun 2025
One paper has been accepted to MICCAI 2025!
Jan 2025
Visiting Student at the UC Merced Vision and Learning Lab supervised by Prof. Ming-Hsuan Yang
Jan 2025
Yonsei Junior Convergence Research Group 1st place, 1,500,000 won
Nov 2024
Our research paper got a Best Trainee Scientific Awards Poster Presentation (Gold) in ICMRI 2024!
Jun 2024
One paper has been accepted to MICCAI 2024!
Feb 2024
One paper has been accepted to ISMRM 2024 as an Oral presentation!
Oct 2023
One paper has been accepted to Computer Methods and Programs in Biomedicine (IF = 6.1)
Mar 2023
Joined MILab at Yonsei University for my PhD Program

Research Experience

Feb 2025 – Jan 2026
University of California at Merced, USA
Visiting Student Researcher, Vision and Learning Lab
Mar 2023 – Present
Yonsei University, Seoul
Graduate Student Researcher, Medical Imaging AI Lab (MILAB)
Mar 2021 – Feb 2023
Yonsei University, Seoul
Graduate Student Researcher, Medical Imaging AI Lab (MILAB)
Advisor: Prof. Dong-Hyun Kim
Jul 2020 – Feb 2021
Yonsei University, Seoul
Undergraduate Research Intern, Medical Imaging AI Lab (MILAB)
Advisor: Prof. Dong-Hyun Kim
Mar 2019 – Dec 2019
Yonsei University, Seoul
Undergraduate Research Intern, Signal Processing Lab
Advisor: Prof. Young-Ro Yoon

Selected Publications

DRIFT

DRIFT: Difficulty-aware Rectified Flows for Through-plane MRI Super-Resolution

Under Review
Yoonseok Choi, Eun-Gyu Ha, Daniel Kim, Mohammed A. Al-masni, Ming-Hsuan Yang, and Dong-Hyun Kim
Halo

Controlling Motion Transfer in Diffusion Transformers via Attention Heads

Under Review
Sunyoung Jung*, Jiwoo Park*, Yoonseok Choi, Kyobin Choo, Ming-Hsuan Yang, and Seong Jae Hwang
TESLA

TESLA: Test-time Reference-free Through-plane Super-resolution for Multi-contrast Brain MRI

MICCAI 2025 Oral (Top 2.2%)
Yoonseok Choi, Sunyoung Jung, Mohammed A. Al-masni, Ming-Hsuan Yang, and Dong-Hyun Kim
MICCAI 2024

Deformation-Aware Segmentation Network Robust to Motion Artifacts for Brain Tissue Segmentation using Disentanglement Learning

MICCAI 2024
Sunyoung Jung, Yoonseok Choi, Mohammed A. Al-masni, Minyoung Jung, and Dong-hyun Kim
CMPB

A single stage knowledge distillation network for brain tumor segmentation on limited MR image modalities

CMPB IF 6.1
Yoonseok Choi, Mohammed A. Al-masni, Kyu-Jin Jung, Roh-Eul Yoo, Seong-Yeong Lee, and Dong-Hyun Kim

Academic Activities

Conference Reviewer

CVPR 2026
MICCAI 2025
ICCV 2025

Awards & Honors

Junior Convergence Research Group (1st place, 1,500,000 won) 2025
BK21 FOUR Outstanding Graduate Students' International Joint Training (12 months, 26,000,000 won) 2024
Junior Convergence Research Group (3rd place, 500,000 won) 2023
Medical Image Processing Contest with Rayence (2nd place, 2,000,000 won) 2022