no code implementations • 9 Aug 2023 • Youngjun Kwak, SeongHun Jeong, Yunseung Lee, Changick Kim
The budgeted model training challenge aims to train an efficient classification model under resource limitations.
no code implementations • 24 Jul 2023 • Yunseung Lee, Youngjun Kwak, JinHo Shin
Owing to the advances in image processing technology and large-scale datasets, companies have implemented facial authentication processes, thereby stimulating increased focus on face anti-spoofing (FAS) against realistic presentation attacks.
no code implementations • ICCV 2023 • Hansol Kim, Youngjun Kwak, Minyoung Jung, JinHo Shin, Youngsung Kim, Changick Kim
Federated learning (FL) is a promising approach for enhancing data privacy preservation, particularly for authentication systems.
no code implementations • 19 Feb 2023 • Youngjun Kwak, Minyoung Jung, Hunjae Yoo, JinHo Shin, Changick Kim
In this paper, we propose a liveness score-based regression network for overcoming the dependency on third party networks and users.
no code implementations • 16 Oct 2019 • Tianchu Guo, Yongchao Liu, HUI ZHANG, Xiabing Liu, Youngjun Kwak, Byung In Yoo, Jae-Joon Han, Changkyu Choi
For the second issue, we define a new metric to measure the robustness of gaze estimator, and propose an adversarial training based Disturbance with Ordinal loss (DwO) method to improve it.
no code implementations • CVPR 2019 • Sangil Jung, Changyong Son, Seohyung Lee, Jinwoo Son, Youngjun Kwak, Jae-Joon Han, Sung Ju Hwang, Changkyu Choi
We demonstrate the effectiveness of our trainable quantizer on ImageNet dataset with various network architectures such as ResNet-18, -34 and AlexNet, on which it outperforms existing methods to achieve the state-of-the-art accuracy.
no code implementations • 21 Mar 2017 • Youngsung Kim, ByungIn Yoo, Youngjun Kwak, Changkyu Choi, Junmo Kim
In this paper, we propose to utilize contrastive representation that embeds a distinctive expressive factor for a discriminative purpose.
Facial Expression Recognition Facial Expression Recognition (FER)