Wonseok Choi

I am a Ph.D. student at the POSTECH GSAI, advised by Tae-Hyun Oh. Before that, I received my B.Sc. degree from the University of Birmingham, where I was advised by Hyung Jin Chang and Jianbo Jiao.

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Research Interests

My research interests lie at the intersection of computer vision and robotics, with a particular emphasis on:

  • Vision-Language Models (Perception, reasoning, and evaluation)
  • Embodied AI (Grounding multimodal understanding into physical actions)

Projects
AIF teaser Aligning What Vision-Language Models See and Perceive with Adaptive Information Flow
Chengxin Liu, Wonseok Choi, Chenshuang Zhang, Tae-Hyun Oh
CVPR 2026
project page / arXiv (TBU)
Patch-wise Retrieval teaser Patch-wise Retrieval: A Bag of Practical Techniques for Instance-level Matching
Wonseok Choi, Sohwi Lim, Nam Hyeon-Woo, Moon Ye-Bin, Dong-Ju Jeong, Jinyoung Hwang, Tae-Hyun Oh
WACV 2026
[Workshop] ICCVw 2025 (eXCV: Explainable Computer Vision: Quo Vadis?)
project page / arXiv
VLM Eye Examination teaser VLM's Eye Examination: Instruct and Inspect Visual Competency of Vision Language Models
Nam Hyeon-Woo, Moon Ye-Bin, Wonseok Choi, Lee Hyun, Tae-Hyun Oh
TMLR 2025
arXiv
SYNAuG teaser SYNAuG: Exploiting Synthetic Data for Data Imbalance Problems
Moon Ye-Bin, Nam Hyeon-Woo, Wonseok Choi, Nayeong Kim, Suha Kwak, Tae-Hyun Oh
Pattern Recognition Letters 2025
arXiv
BEAF teaser BEAF: Observing BEfore-AFter Changes to Evaluate Hallucination in Vision-language Models
Moon Ye-Bin, Nam Hyeon-Woo, Wonseok Choi, Tae-Hyun Oh
ECCV 2024
project page / arXiv

Education

B.Sc. in Computer Science and Artificial Intelligence
University of Birmingham, Birmingham, United Kingdom
First Class with Honours
2019.09 - 2022.12

Integrated Ph.D. in Graduate School of Artificial Intelligence
Pohang University of Science and Technology (POSTECH), Pohang, South Korea
2023.03 - Present

Teaching Experiences

  • 2023.02 - 2023.06, Introduction to Machine Learning (EECE454), POSTECH
  • 2025.02 - 2025.06, Deep Learning Natural Language Processing (CSED554), POSTECH
  • 2025.09 - 2025.12, Computer Vision (CSED441), POSTECH