- AI for healthcare and medical imaging
- Deep learning for inverse problems
- Computer vision

1999-2001 Postdoctoral Research Associate, Univ. of Illinois at Urbana-Champaign
2001-2003 Senior Member Research Staff, Philips Research NY
2003-2004 Senior Engineer, GE Global Research NY
2004-2021 Assistant, Associate, Full Professor, Dept of Bio and Brain Engineering, KAIST
2022- Full Professor, Graduate School of AI, KAIST
2019- IEEE Fellow
2020-2021 IEEE EMBS Distinguished Lecturer
2020-2021 Chair, IEEE SPS Computational Imaging Technical Committee
2020 General Chair, IEEE Symposium on Biomedical Imaging (ISBI)
2023- President, Korean Society of Artificial Intelligence in Medicine

2023 Choi Sukjeong Award, Ministry of Science & ICT
2022 Kumkok Academic Award, Korean Society for Industrial and Applied Mathematics (KSIAM)
2009 ISMRM Recon Challenge Winner