Search Results for author: Chunlei Peng

Found 16 papers, 9 papers with code

Semi-Supervised Learning for Anomaly Traffic Detection via Bidirectional Normalizing Flows

1 code implementation13 Mar 2024 Zhangxuan Dang, Yu Zheng, Xinglin Lin, Chunlei Peng, Qiuyu Chen, Xinbo Gao

We consider the problem of anomaly network traffic detection and propose a three-stage anomaly detection framework using only normal traffic.

Anomaly Detection Benchmarking

Masked Attribute Description Embedding for Cloth-Changing Person Re-identification

1 code implementation11 Jan 2024 Chunlei Peng, Boyu Wang, Decheng Liu, Nannan Wang, Ruimin Hu, Xinbo Gao

To address this, we mask the clothing and color information in the personal attribute description extracted through an attribute detection model.

Attribute Cloth-Changing Person Re-Identification

Adv-Diffusion: Imperceptible Adversarial Face Identity Attack via Latent Diffusion Model

1 code implementation18 Dec 2023 Decheng Liu, Xijun Wang, Chunlei Peng, Nannan Wang, Ruiming Hu, Xinbo Gao

Adversarial attacks involve adding perturbations to the source image to cause misclassification by the target model, which demonstrates the potential of attacking face recognition models.

Image Generation

Symmetrical Bidirectional Knowledge Alignment for Zero-Shot Sketch-Based Image Retrieval

1 code implementation16 Dec 2023 Decheng Liu, Xu Luo, Chunlei Peng, Nannan Wang, Ruimin Hu, Xinbo Gao

In this paper, we propose a novel Symmetrical Bidirectional Knowledge Alignment for zero-shot sketch-based image retrieval (SBKA).

Knowledge Distillation Retrieval +1

DeepFidelity: Perceptual Forgery Fidelity Assessment for Deepfake Detection

2 code implementations7 Dec 2023 Chunlei Peng, Huiqing Guo, Decheng Liu, Nannan Wang, Ruimin Hu, Xinbo Gao

Considering the complexity of the quality distribution of both real and fake faces, we propose a novel Deepfake detection framework named DeepFidelity to adaptively distinguish real and fake faces with varying image quality by mining the perceptual forgery fidelity of face images.

DeepFake Detection Face Swapping

Attention Consistency Refined Masked Frequency Forgery Representation for Generalizing Face Forgery Detection

1 code implementation21 Jul 2023 Decheng Liu, Tao Chen, Chunlei Peng, Nannan Wang, Ruimin Hu, Xinbo Gao

Due to the successful development of deep image generation technology, visual data forgery detection would play a more important role in social and economic security.

Image Generation

FedForgery: Generalized Face Forgery Detection with Residual Federated Learning

1 code implementation18 Oct 2022 Decheng Liu, Zhan Dang, Chunlei Peng, Yu Zheng, Shuang Li, Nannan Wang, Xinbo Gao

Experiments conducted on publicly available face forgery detection datasets prove the superior performance of the proposed FedForgery.

Federated Learning Image Generation

TransFA: Transformer-based Representation for Face Attribute Evaluation

1 code implementation12 Jul 2022 Decheng Liu, Weijie He, Chunlei Peng, Nannan Wang, Jie Li, Xinbo Gao

The multiple branches transformer is employed to explore the inter-correlation between different attributes in similar semantic regions for attribute feature learning.

Attribute Multi-Label Classification +1

Spatial-Temporal Frequency Forgery Clue for Video Forgery Detection in VIS and NIR Scenario

no code implementations5 Jul 2022 Yukai Wang, Chunlei Peng, Decheng Liu, Nannan Wang, Xinbo Gao

In recent years, with the rapid development of face editing and generation, more and more fake videos are circulating on social media, which has caused extreme public concerns.

Towards Defending against Adversarial Examples via Attack-Invariant Features

no code implementations9 Jun 2021 Dawei Zhou, Tongliang Liu, Bo Han, Nannan Wang, Chunlei Peng, Xinbo Gao

However, given the continuously evolving attacks, models trained on seen types of adversarial examples generally cannot generalize well to unseen types of adversarial examples.

Adversarial Robustness

Removing Adversarial Noise in Class Activation Feature Space

no code implementations ICCV 2021 Dawei Zhou, Nannan Wang, Chunlei Peng, Xinbo Gao, Xiaoyu Wang, Jun Yu, Tongliang Liu

Then, we train a denoising model to minimize the distances between the adversarial examples and the natural examples in the class activation feature space.

Adversarial Robustness Denoising

Sparse Graphical Representation based Discriminant Analysis for Heterogeneous Face Recognition

no code implementations1 Jul 2016 Chunlei Peng, Xinbo Gao, Nannan Wang, Jie Li

An adaptive sparse graphical representation scheme is designed to represent heterogeneous face images, where a Markov networks model is constructed to generate adaptive sparse vectors.

Face Recognition Heterogeneous Face Recognition

Graphical Representation for Heterogeneous Face Recognition

no code implementations2 Mar 2015 Chunlei Peng, Xinbo Gao, Nannan Wang, Jie Li

Heterogeneous face recognition (HFR) refers to matching face images acquired from different sources (i. e., different sensors or different wavelengths) for identification.

Face Recognition Heterogeneous Face Recognition

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