Namhyuk Ahn

AI Researcher at NAVER WEBTOON Corp.
nmhkahn at gmail.com
[Github] [Google Scholar] [CV]


I am an AI researcher in the W AI Creation team at NAVER WEBTOON. My research topics span the area of computer vision. I obtained a Ph.D. at Ajou University, advised by Prof. Kyung-Ah Sohn. Throughout that time, I had mostly involved in projects of image enhancement or restoration tasks, such as image super-resolution. Currently, I am interested in generating, translating, or manipulating images with user-guided information, hoping to make a user-friendly content creation tool.

Publication

Cross-Domain Style Mixing for Face Cartoonization
Seungkwon Kim, Chaeheon Gwak, Dohyun Kim, Kwangho Lee, Jihye Back,
Namhyuk Ahn*, and Daesik Kim* (* indicates equal contribution)
AICC workshop @ CVPR 2022
[arXiv] [Project]
Exploiting Distortion Information for Multi-degraded Image Restoration
Wooksu Shin, Namhyuk Ahn, Jeong-Hyeon Moon, and Kyung-Ah Sohn
NTIRE workshop @ CVPR 2022
[arXiv]
What is Wrong with One-Class Anomaly Detection?
JuneKyu Park, Jeong-Hyeon Moon, Namhyuk Ahn, and Kyung-Ah Sohn
AISecure workshop @ ICLR 2021
[arXiv] [Github]
Restoring Spatially-Heterogeneous Distortions using Mixture of Experts Network
Sijin Kim*, Namhyuk Ahn*, and Kyung-Ah Sohn (* indicates equal contribution)
ACCV 2020
[arXiv] [Video]
Rethinking Data Augmentation for Image Super-resolution: A Comprehensive Analysis and a New Strategy
Jaejun Yoo*, Namhyuk Ahn*, and Kyung-Ah Sohn (* indicates equal contribution)
CVPR 2020
[arXiv] [Github] [Video]
SimUSR: A Simple but Strong Baseline for Unsupervised Image Super-resolution
Namhyuk Ahn*, Jaejun Yoo*, and Kyung-Ah Sohn (* indicates equal contribution)
NTIRE workshop @ CVPR 2020
[arXiv] [Video]
Fast, Accurate, and Lightweight Super-Resolution with Cascading Residual Network
Namhyuk Ahn, Byungkon Kang, and Kyung-Ah Sohn
ECCV 2018
Pattern Recognition, 2022 (IF=7.740)
[arXiv] [Extended ver.] [Github]
Image Super-resolution via Progressive Cascading Residual Network
Namhyuk Ahn, Byungkon Kang, and Kyung-Ah Sohn
NTIRE workshop @ CVPR 2018
[Paper] [Github]
Image Distortion Detection using Convolutional Neural Network
Namhyuk Ahn, Byungkon Kang, and Kyung-Ah Sohn
ACPR 2017
[arXiv]

Work Experience

  • AI Researcher, NAVER WEBTOON Corp.  (Aug. 2021 ~ Present)

  • Visiting Researcher, Clova AI Research, NAVER Corp.  (Sep. 2019 ~ Oct. 2020)
    Mentor: Dr. Jaejun Yoo, Dr. Youngjung Uh and Yunjey Choi

  • Intern, Clova AI, NAVER Corp.  (June 2018 ~ Aug. 2018)
    Mentor: Kwangjin Oh

Education


Award

  • Honorable Mention Award, NTIRE 2018 Challenge  (June 2018)
    Single image super-resolution challenge (Track 1: Classic Bicubic) on NTIRE workshop @ CVPR 2018.

Teaching

Academic Activitiy

  • Reviewer
    Journal: TPAMI, TIP, TMM, TCVST, Signal Processing: Image Communication
    Workshops: NTIRE (@ CVPR 2022)