Hi! I am a Ph.D. student advised by Professor Jaegul Choo at KAIST Kim Jaechul Graduate School of AI.
I work on and am interested in Robotics, World Models, and World Action Models.
I am a researcher at DAVIAN Robotics, working on world action models that unify perception, prediction, and control for real-world manipulation.
(*: Equal contribution, C: Conference, U: Under review).
[U1] Unified Latents for World Action Model
Junha Hyung*, Hyojin Jang*, Jaegul Choo
Under Review, 2026.
[C6] 3D HAMSTER: Bridging Planning and Control in Hierarchical Vision Language Action Models through 3D Trajectory Guidance
Dongyoon Hwang*, Byungkun Lee*, Dongjin Kim*, Hyojin Jang, Hoiyeong Jin, Jueun Mun, Minho Park, Hojoon Lee, Hyunseung Kim, Jaegul Choo
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2026.
[C5] ACG: Action Coherence Guidance for Flow-based VLA models
Minho Park*, Kinam Kim*, Junha Hyung, Hyojin Jang, Hoiyeong Jin, Jooyeol Yun, Hojoon Lee, Jaegul Choo
IEEE International Conference on Robotics and Automation (ICRA), 2026.
[C4] InsertAnywhere: Geometrically Grounded and Optics-Aware Video Object Insertion
Hoiyeong Jin*, Hyojin Jang*, Junha Hyung*, Jeongho Kim, Kinam Kim, Dongjin Kim, Huijin Choi, Hyunji Kim, Jaegul Choo
European Conference on Computer Vision (ECCV), 2026.
[C3] AHS: Adaptive Head Synthesis via Synthetic Data Augmentations
Taewoong Kang*, Hyojin Jang*, Sohyun Jeong*, Seunggi Moon, Gihwi Kim, Hoon Jin Jung, Jaegul Choo
The IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026.
[C2] Zero-Shot Head Swapping in Real-World Scenarios
Taewoong Kang*, Sohyun Jeong*, Hyojin Jang*, Jaegul Choo
The IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025, Nashville TN, USA.
[C1] SurFhead: Affine Rig Blending for Geometrically Accurate 2D Gaussian Surfel-based Head Avatars
Jaeseong Lee*, Taewoong Kang*, Marcel C. Bühler, Min-Jung Kim, Sungwon Hwang, Junha Hyung, Hyojin Jang, Jaegul Choo
The Thirteenth International Conference on Learning Representations (ICLR), 2025, Singapore.
Korea Advanced Institute of Science and Technology (KAIST) Sep. 2025 - Current
Ph.D. in Artificial Intelligence (advised by Prof. Jaegul Choo)
Korea Advanced Institute of Science and Technology (KAIST) Mar. 2019 - Aug. 2024
B.S. in School of Computing, Electrical Engineering (double major)
Researcher Mar. 2025 - Current
DAVIAN Robotics (Vision-Language-Action, World Action Models)
Undergraduate Researcher May. 2024 - Feb. 2025
Data and Visual Analytics Lab (DAVIAN Lab) (advised by Prof. Jaegul Choo)
AI Research Intern Sep. 2022 - Feb. 2023
NC Soft Research