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One major issue that challenges person re-identification (Re-ID) is the ubiquitous occlusion over the captured persons. There are two main challenges for the occluded person Re-ID problem, i.e., the interference of noise during feature…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Boqiang Xu , Lingxiao He , Jian Liang , Zhenan Sun

Presentation attack detection (PAD) is a critical component in secure face authentication. We present a PAD algorithm to distinguish face spoofs generated by a photograph of a subject from live images. Our method uses an image decomposition…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Shlok Kumar Mishra , Kuntal Sengupta , Max Horowitz-Gelb , Wen-Sheng Chu , Sofien Bouaziz , David Jacobs

Face presentation attack detection plays a critical role in the modern face recognition pipeline. A face presentation attack detection model with good generalization can be obtained when it is trained with face images from different input…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Rui Shao , Pramuditha Perera , Pong C. Yuen , Vishal M. Patel

High quality facial image editing is a challenging problem in the movie post-production industry, requiring a high degree of control and identity preservation. Previous works that attempt to tackle this problem may suffer from the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Xu Yao , Alasdair Newson , Yann Gousseau , Pierre Hellier

Blind face restoration from low-quality (LQ) images is a challenging task that requires not only high-fidelity image reconstruction but also the preservation of facial identity. While diffusion models like Stable Diffusion have shown…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Runyi Li , Bin Chen , Jian Zhang , Radu Timofte

This paper considers the out-of-distribution (OOD) generalization problem under the setting that both style distribution shift and spurious features exist and domain labels are missing. This setting frequently arises in real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Ruimeng Li , Yuanhao Pu , Zhaoyi Li , Hong Xie , Defu Lian

Face recognition systems are widely deployed for biometric authentication. Despite this, it is well-known that, without any safeguards, face recognition systems are highly vulnerable to presentation attacks. In response to this security…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 M. Ibsen , C. Rathgeb , F. Brechtel , R. Klepp , K. Pöppelmann , A. George , S. Marcel , C. Busch

Transfer adversarial attack is a non-trivial black-box adversarial attack that aims to craft adversarial perturbations on the surrogate model and then apply such perturbations to the victim model. However, the transferability of…

Machine Learning · Computer Science 2021-12-14 Shuman Fang , Jie Li , Xianming Lin , Rongrong Ji

The increasingly pervasive facial recognition (FR) systems raise serious concerns about personal privacy, especially for billions of users who have publicly shared their photos on social media. Several attempts have been made to protect…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Chun Pong Lau , Jiang Liu , Rama Chellappa

Blind face restoration is an important task in computer vision and has gained significant attention due to its wide-range applications. Previous works mainly exploit facial priors to restore face images and have demonstrated high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Xiaoxu Chen , Jingfan Tan , Tao Wang , Kaihao Zhang , Wenhan Luo , Xiaochun Cao

Machine learning models have demonstrated vulnerability to adversarial attacks, more specifically misclassification of adversarial examples. In this paper, we investigate an attack-agnostic defense against adversarial attacks on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Shuo Wang , Surya Nepal , Alsharif Abuadbba , Carsten Rudolph , Marthie Grobler

Style transfer of 3D faces has gained more and more attention. However, previous methods mainly use images of artistic faces for style transfer while ignoring arbitrary style images such as abstract paintings. To solve this problem, we…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Xiangwen Deng , Yingshuang Zou , Yuanhao Cai , Chendong Zhao , Yang Liu , Zhifang Liu , Yuxiao Liu , Jiawei Zhou , Haoqian Wang

Face recognition systems are usually faced with unseen domains in real-world applications and show unsatisfactory performance due to their poor generalization. For example, a well-trained model on webface data cannot deal with the ID vs.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Jianzhu Guo , Xiangyu Zhu , Chenxu Zhao , Dong Cao , Zhen Lei , Stan Z. Li

Machine learning models struggle with generalization when encountering out-of-distribution (OOD) samples with unexpected distribution shifts. For vision tasks, recent studies have shown that test-time adaptation employing diffusion models…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Yun-Yun Tsai , Fu-Chen Chen , Albert Y. C. Chen , Junfeng Yang , Che-Chun Su , Min Sun , Cheng-Hao Kuo

Recent works have demonstrated the feasibility of inverting face recognition systems, enabling to recover convincing face images using only their embeddings. We leverage such template inversion models to develop a novel type ofdeep morphing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Laurent Colbois , Hatef Otroshi Shahreza , Sébastien Marcel

Face editing methods, essential for tasks like virtual avatars, digital human synthesis and identity preservation, have traditionally been built upon GAN-based techniques, while recent focus has shifted to diffusion-based models due to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Mengting Wei , Tuomas Varanka , Yante Li , Xingxun Jiang , Huai-Qian Khor , Guoying Zhao

The main challenges of ReID is the intra-class variations caused by color deviation under different camera conditions. Simultaneously, we find that most of the existing adversarial metric attacks are realized by interfering with the color…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Yunpeng Gong , Liqing Huang , Lifei Chen

A practical face recognition system demands not only high recognition performance, but also the capability of detecting spoofing attacks. While emerging approaches of face anti-spoofing have been proposed in recent years, most of them do…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Xiaoguang Tu , Hengsheng Zhang , Mei Xie , Yao Luo , Yuefei Zhang , Zheng Ma

While deep learning demonstrates its strong ability to handle independent and identically distributed (IID) data, it often suffers from out-of-distribution (OoD) generalization, where the test data come from another distribution (w.r.t. the…

Machine Learning · Computer Science 2020-12-18 Haoyue Bai , Rui Sun , Lanqing Hong , Fengwei Zhou , Nanyang Ye , Han-Jia Ye , S. -H. Gary Chan , Zhenguo Li

Unlike traditional central training, federated learning (FL) improves the performance of the global model by sharing and aggregating local models rather than local data to protect the users' privacy. Although this training approach appears…

Machine Learning · Computer Science 2022-01-27 Jiahui Geng , Yongli Mou , Feifei Li , Qing Li , Oya Beyan , Stefan Decker , Chunming Rong
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