Hello

I am Seonho Lee (Griffin Sunho Lee in the US). I am working as an Applied AI Researcher at Krafton AI. I got a M.S. degree from KAIST AI in Artificial Intelligence and had worked as an AI graduate researcher at the Computer Vision and Machine Learning Lab at KAIST, advised by Prof. Hyunjung Shim.

I am interested in research on AI especially in Computer vision. I hope to use AI to help people freely envision, realize, and share what they believe in.

Particularly, I am researching on the following topics:

1. Generative AI

2. Vision-Language Understanding

CV E-mail Github LinkedIn Google Scholar

• Email: glanceyes (at) kaist (dot) com

News

Mar. 2026: I begin to work as an Applied AI Researcher at Krafton AI.

Jan. 2026 Our What “Not” to Detect paper got accepted to ICLR 2026!

Oct. 2025: Two papers PartCATSeg and 3D-Aware VLM Finetuning got selected as QIFK(Qualcomm Innovation Fellowship Korea) 2025 Finalist.

Aug. 2025: Our 3D-Aware VLM Finetuning paper got accepted to EMNLP 2025 Findings!

Jun. 2025: I got ML engineering internship at Snap Inc. in Santa Monica, CA.

Jun. 2025: I got awarded Korean Presidential Science Scholarship for Graduate Students.

May. 2025: Our ScribbleDiff paper got accepted to ICIP 2025!

Feb. 2025: Our PartCATSeg paper got accepted to CVPR 2025!

Jan. 2025: Our DreamCatalyst paper got accepted to ICLR 2025!

Publications

*: equal contribution.   †: corresponding author.   C: conference   P: preprint

[C6] What “Not” to Detect: Improving Object Detection under Negation via Reasoning and Token Merging

• Inha Kang, Youngsun Lim, Seonho Lee, Jiho Choi, Junsuk Choi†, Hyunjung Shim†
• Keywords: Described Object Detction under Negation

ICLR 2026, Paper

[C5] 3D-Aware Vision-Language Models Fine-Tuning with Geometric Distillation

• Seonho Lee*, Jiho Choi*, Inha Kang, Jiwook Kim, Junsung Park, Hyunjung Shim†
• Keywords: 3D-Aware VLM Finetuning

EMNLP 2025 Findings, Paper, Codes

[C4] Fine-Grained Image-Text Correspondence with Cost Aggregation for Open-Vocabulary Part Segmentation

• Jiho Choi*, Seonho Lee*, Seungho Lee, Minhyun Lee, Hyunjung Shim†
• Keywords: Open-Vocabulary Part Segmentation

CVPR 2025, Paper, Codes

[C3] Scribble-Guided Diffusion for Training-free Text-to-Image Generation

• Seonho Lee*, Jiho Choi*, Seohyun Lim, Jiwook Kim, Hyunjung Shim†
• Keywords: Conditional Image Generation

ICIP 2025, Paper, Codes

[C2] DreamCatalyst: Fast and High-Quality 3D Editing via Controlling Editability and Identity Preservation

• Jiwook Kim*, Seonho Lee*, Jaeyo Shin, Jiho Choi, Hyunjung Shim†
• Keywords: 3D Editing, Score Distillation

ICLR 2025, Paper, Project Page, Codes

[C1] Understanding Multi-Granularity for Open-Vocabulary Part Segmentation

• Jiho Choi*, Seonho Lee*, Seungho Lee, Minhyun Lee, Hyunjung Shim†
• Keywords: Open-Vocabulary Part Segmentation

NeurIPS 2024, Paper, Codes

[P3] Dense Reward for Multi-View 3D Reasoning with Global Maps and Local Views

• Jiho Choi*, Seonho Lee*, Seojeong Park, Hyunjung Shim†
• Keywords: Multi-View 3D Reasoning, Reinforcement Learning

Under Review

[P2] Mitigating Perceptual Judgment Bias in Multimodal LLM-as-a-Judge via Perceptual Perturbation and Reward Modeling

• Seojeong Park*, Jiho Choi*, Junyong Kang, Seonho Lee, Jaeyo Shin, Hyunjung Shim†
• Keywords: Multimodal LLM, Perceptual Judgment Bias

Under Review

[P1] WaymoQA: A Multi-View Visual Question Answering Dataset for Safety-Critical Reasoning in Autonomous Driving

• Seungjun Yu, Seonho Lee, Namho Kim, Jaeyo Shin, Junsung Park, Wonjeong Ryu, Raehyuk Jung, Hyunjung Shim†
• Keywords: Visual Question Answering, Safety-Critical Reasoning

Preprint, Under Review

Work Experience

Krafton - AI Research Team, Applied AI Researcher

• Mar. 2026 ~ Present , Seoul, Republic of Korea

Snap Inc. - Generative ML team (VideoCraft), ML engineer intern

• Jun. 2025 ~ Sep. 2025, Santa Monica, CA, USA
• Led a project for establishing cross-reference dataset preprocessing pipeline for personalized video generation
• Developed new model architecture with multi-subject adapters for VideoAlchemist 2.0

Projects

3D-Aware VLM Finetuning, Samsung Research

• Electronic Device and Method for Operating Thereof and Storage Medium
• Korean patent: 10-2025-0109574

SHrack: Mobile Web Service for Real-time Exercise Count Tracking

• Web-based real-time video streaming service for accurate exercise count detection
• Keywords: MobileNet, Contextual Prediction Module

Review

RECJOON: Backjoon Online Judge Problem Solving Recommendation System

• Naver Boostcamp AI Tech 3rd (Mar. 2022 ~ Jun. 2022)
• Keywords: Recommendation System

Review, Codes

KUVIS: Web-based Visual Programming Software with Deep Learning in Medicine

• Seonho Lee, Yoomin Kang, Advised by Prof. Wonki Jeong (Jul. 2022 ~ Aug. 2022)
• Keywords: Visual Programming, Parallel Computing for Deep Learning
• Prototype of VIENCE Pathoview

Review, Projects

Education

KAIST

• M.S. in Artificial Intelligence, Mar. 2024 ~ Feb. 2026
• GPA: 4.20 / 4.3

Sogang University

• B.S. in Computer Science and Engineering, Mar. 2017 ~ Feb. 2024 (Expected)
• GPA: 4.12 / 4.3 (Summa Cum Laude)

Sangsan High School

Honors and Awards

Best Paper Award in IPIU 2026

• Paper: What “Not” to Detect (Feb. 2026)
• Awardee: Inha Kang, Seonho Lee, Jiho Choi

Qualcomm Innovation Fellowship Korea (QIFK) 2025 Finalist

• Selected as a finalist by Qualcomm AI Research (Oct. 2025)
• Two papers: PartCATSeg and 3D-Aware VLM Finetuning

Korean Presidential Science Scholarship for Graduate Students

• Awarded by the President of Korea (Jun. 2025)

2nd Place on Open Vocabulary Part Segmentation Challenge at CVPR 2024

• 2nd Place Winnder both on Track 1 and 2
• 4th workshop on Open World Vision at CVPR 2024

Excellence Award in 2023 POSTECH OIBC Challenge

• 3rd Place (3/120) in AI Competition of Solar Power Generation Forecasting (Dec. 2023)

2022 ICPC Asia Korea Regional Contest

• 48th in Korea, 62nd in Preliminary

Korea National Science and Technology Scholarship

• Spring 2019, Fall 2022, Spring 2023, Fall 2023 (4 Semesters)

Dean’s List, Sogang University

• 1%: Spring 2018, Spring 2019, Fall 2022
• 5%: Fall 2018

Academic Activities

Reviewer

• CVPR 2026 Workshop (MUSI)
• 3DV 2026

Last updated: 7th, Mar. 2026