Search Results for author: Simon S. Woo

Found 31 papers, 15 papers with code

Gradient Alignment for Cross-Domain Face Anti-Spoofing

1 code implementation29 Feb 2024 Binh M. Le, Simon S. Woo

Recent advancements in domain generalization (DG) for face anti-spoofing (FAS) have garnered considerable attention.

Domain Generalization Face Anti-Spoofing

One Detector to Rule Them All: Towards a General Deepfake Attack Detection Framework

1 code implementation1 May 2021 Shahroz Tariq, Sangyup Lee, Simon S. Woo

Beyond detecting a single type of DF from benchmark deepfake datasets, we focus on developing a generalized approach to detect multiple types of DFs, including deepfakes from unknown generation methods such as DeepFake-in-the-Wild (DFW) videos.

Face Swapping

FDFtNet: Facing Off Fake Images using Fake Detection Fine-tuning Network

2 code implementations5 Jan 2020 Hyeonseong Jeon, Youngoh Bang, Simon S. Woo

Creating fake images and videos such as "Deepfake" has become much easier these days due to the advancement in Generative Adversarial Networks (GANs).

Face Swapping Few-Shot Learning +2

T-GD: Transferable GAN-generated Images Detection Framework

1 code implementation ICML 2020 Hyeonseong Jeon, Youngoh Bang, Junyaup Kim, Simon S. Woo

First, we train the teacher model on the source dataset and use it as a starting point for learning the target dataset.

Towards an Awareness of Time Series Anomaly Detection Models' Adversarial Vulnerability

1 code implementation24 Aug 2022 Shahroz Tariq, Binh M. Le, Simon S. Woo

To the best of our understanding, we demonstrate, for the first time, the vulnerabilities of anomaly detection systems against adversarial attacks.

Anomaly Detection Time Series +1

Exploring the Asynchronous of the Frequency Spectra of GAN-generated Facial Images

1 code implementation15 Dec 2021 Binh M. Le, Simon S. Woo

The rapid progression of Generative Adversarial Networks (GANs) has raised a concern of their misuse for malicious purposes, especially in creating fake face images.

Quality-Agnostic Deepfake Detection with Intra-model Collaborative Learning

1 code implementation ICCV 2023 Binh M. Le, Simon S. Woo

However, detecting low quality as well as simultaneously detecting different qualities of deepfakes still remains a grave challenge.

DeepFake Detection Face Swapping

Continuous Memory Representation for Anomaly Detection

1 code implementation28 Feb 2024 Joo Chan Lee, Taejune Kim, Eunbyung Park, Simon S. Woo, Jong Hwan Ko

To tackle all of the above challenges, we propose CRAD, a novel anomaly detection method for representing normal features within a "continuous" memory, enabled by transforming spatial features into coordinates and mapping them to continuous grids.

Anomaly Detection

CoReD: Generalizing Fake Media Detection with Continual Representation using Distillation

2 code implementations6 Jul 2021 Minha Kim, Shahroz Tariq, Simon S. Woo

Over the last few decades, artificial intelligence research has made tremendous strides, but it still heavily relies on fixed datasets in stationary environments.

Continual Learning Domain Adaptation +3

ADD: Frequency Attention and Multi-View based Knowledge Distillation to Detect Low-Quality Compressed Deepfake Images

2 code implementations7 Dec 2021 Binh M. Le, Simon S. Woo

In particular, we propose the Attention-based Deepfake detection Distiller (ADD), which consists of two novel distillations: 1) frequency attention distillation that effectively retrieves the removed high-frequency components in the student network, and 2) multi-view attention distillation that creates multiple attention vectors by slicing the teacher's and student's tensors under different views to transfer the teacher tensor's distribution to the student more efficiently.

DeepFake Detection Face Swapping +2

KappaFace: Adaptive Additive Angular Margin Loss for Deep Face Recognition

1 code implementation19 Jan 2022 Chingis Oinar, Binh M. Le, Simon S. Woo

However, the majority of the proposed methods do not consider the class imbalance issue, which is a major challenge in practice for developing deep face recognition models.

Face Recognition

Am I a Real or Fake Celebrity? Measuring Commercial Face Recognition Web APIs under Deepfake Impersonation Attack

no code implementations1 Mar 2021 Shahroz Tariq, Sowon Jeon, Simon S. Woo

Moreover, we propose practical defense strategies to mitigate DI attacks, reducing the attack success rates to as low as 0% and 0. 02% for targeted and non-targeted attacks, respectively.

Face Recognition Face Swapping

Evaluation of an Audio-Video Multimodal Deepfake Dataset using Unimodal and Multimodal Detectors

no code implementations7 Sep 2021 Hasam Khalid, Minha Kim, Shahroz Tariq, Simon S. Woo

On the other hand, to develop a good deepfake detector that can cope with the recent advancements in deepfake generation, we need to have a detector that can detect deepfakes of multiple modalities, i. e., videos and audios.

DeepFake Detection Face Swapping

Evaluating the Robustness of Time Series Anomaly and Intrusion Detection Methods against Adversarial Attacks

no code implementations29 Sep 2021 Shahroz Tariq, Simon S. Woo

To the best of our knowledge, we are the first to demonstrate the vulnerabilities of anomaly and intrusion detection systems against adversarial attacks.

Intrusion Detection Time Series +1

DA-FDFtNet: Dual Attention Fake Detection Fine-tuning Network to Detect Various AI-Generated Fake Images

no code implementations22 Dec 2021 Young Oh Bang, Simon S. Woo

Our DA-FDFtNet integrates the pre-trained model with Fine-Tune Transformer, MBblockV3, and a channel attention module to improve the performance and robustness across different types of fake images.

Few-Shot Learning

Deepfake Detection for Facial Images with Facemasks

no code implementations23 Feb 2022 Donggeun Ko, Sangjun Lee, Jinyong Park, Saebyeol Shin, Donghee Hong, Simon S. Woo

However, none of the suggested deepfakedetection methods assessed the performance of deepfakes withthe facemask during the pandemic crisis after the outbreak of theCovid-19.

DeepFake Detection Face Swapping +1

CFL-Net: Image Forgery Localization Using Contrastive Learning

no code implementations4 Oct 2022 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

A key assumption in underlying forged region localization is that there remains a difference of feature distribution between untampered and manipulated regions in each forged image sample, irrespective of the forgery type.

Contrastive Learning Image Manipulation

Interpretations Cannot Be Trusted: Stealthy and Effective Adversarial Perturbations against Interpretable Deep Learning

no code implementations29 Nov 2022 Eldor Abdukhamidov, Mohammed Abuhamad, Simon S. Woo, Eric Chan-Tin, Tamer Abuhmed

We assess the effectiveness of proposed attacks against two deep learning model architectures coupled with four interpretation models that represent different categories of interpretation models.

Bridging Optimal Transport and Jacobian Regularization by Optimal Trajectory for Enhanced Adversarial Defense

no code implementations21 Mar 2023 Binh M. Le, Shahroz Tariq, Simon S. Woo

Our work is the first carefully analyzes and characterizes these two schools of approaches, both theoretically and empirically, to demonstrate how each approach impacts the robust learning of a classifier.

Adversarial Attack Adversarial Defense +1

Microbial Genetic Algorithm-based Black-box Attack against Interpretable Deep Learning Systems

no code implementations13 Jul 2023 Eldor Abdukhamidov, Mohammed Abuhamad, Simon S. Woo, Eric Chan-Tin, Tamer Abuhmed

Our results show that the proposed approach is query-efficient with a high attack success rate that can reach between 95% and 100% and transferability with an average success rate of 69% in the ImageNet and CIFAR datasets.

HRFNet: High-Resolution Forgery Network for Localizing Satellite Image Manipulation

no code implementations20 Jul 2023 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

Existing high-resolution satellite image forgery localization methods rely on patch-based or downsampling-based training.

Image Manipulation Image Segmentation +1

Unveiling Vulnerabilities in Interpretable Deep Learning Systems with Query-Efficient Black-box Attacks

no code implementations21 Jul 2023 Eldor Abdukhamidov, Mohammed Abuhamad, Simon S. Woo, Eric Chan-Tin, Tamer Abuhmed

Deep learning has been rapidly employed in many applications revolutionizing many industries, but it is known to be vulnerable to adversarial attacks.

All but One: Surgical Concept Erasing with Model Preservation in Text-to-Image Diffusion Models

no code implementations20 Dec 2023 Seunghoo Hong, Juhun Lee, Simon S. Woo

Text-to-Image models such as Stable Diffusion have shown impressive image generation synthesis, thanks to the utilization of large-scale datasets.

Image Generation

Layer Attack Unlearning: Fast and Accurate Machine Unlearning via Layer Level Attack and Knowledge Distillation

no code implementations28 Dec 2023 Hyunjune Kim, Sangyong Lee, Simon S. Woo

Recently, serious concerns have been raised about the privacy issues related to training datasets in machine learning algorithms when including personal data.

Knowledge Distillation Machine Unlearning

Source-Free Online Domain Adaptive Semantic Segmentation of Satellite Images under Image Degradation

no code implementations4 Jan 2024 Fahim Faisal Niloy, Kishor Kumar Bhaumik, Simon S. Woo

In this paper, we address source-free and online domain adaptation, i. e., test-time adaptation (TTA), for satellite images, with the focus on mitigating distribution shifts caused by various forms of image degradation.

Image Segmentation Online Domain Adaptation +2

SoK: Facial Deepfake Detectors

no code implementations9 Jan 2024 Binh M. Le, Jiwon Kim, Shahroz Tariq, Kristen Moore, Alsharif Abuadbba, Simon S. Woo

Our systematized analysis and experimentation lay the groundwork for a deeper understanding of deepfake detectors and their generalizability, paving the way for future research focused on creating detectors adept at countering various attack scenarios.

DeepFake Detection Face Swapping

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