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When compared to the image classification models, black-box adversarial attacks against video classification models have been largely understudied. This could be possible because, with video, the temporal dimension poses significant…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Shasha Li , Abhishek Aich , Shitong Zhu , M. Salman Asif , Chengyu Song , Amit K. Roy-Chowdhury , Srikanth V. Krishnamurthy

Protecting privacy during inference with deep neural networks is possible by adding noise to the activations in the last layers prior to the final classifiers or other task-specific layers. The activations in such layers are known as…

机器学习 · 计算机科学 2024-11-13 Kamalika Chaudhuri , Chuan Guo , Laurens van der Maaten , Saeed Mahloujifar , Mark Tygert

Visual retrieval tasks such as image retrieval and person re-identification (Re-ID) aim at effectively and thoroughly searching images with similar content or the same identity. After obtaining retrieved examples, re-ranking is a widely…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Yuqi Zhang , Qi Qian , Hongsong Wang , Chong Liu , Weihua Chen , Fan Wang

Deep neural network image classifiers are reported to be susceptible to adversarial evasion attacks, which use carefully crafted images created to mislead a classifier. Many adversarial attacks belong to the category of dense attacks, which…

计算机视觉与模式识别 · 计算机科学 2022-02-22 He Zhao , Thanh Nguyen , Trung Le , Paul Montague , Olivier De Vel , Tamas Abraham , Dinh Phung

This study proposes a privacy-preserving Visual SLAM framework for estimating camera poses and performing bundle adjustment with mixed line and point clouds in real time. Previous studies have proposed localization methods to estimate a…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Mikiya Shibuya , Shinya Sumikura , Ken Sakurada

Currently, graph learning models are indispensable tools to help researchers explore graph-structured data. In academia, using sufficient training data to optimize a graph model on a single device is a typical approach for training a…

机器学习 · 计算机科学 2023-08-22 Haoran Yang , Xiangyu Zhao , Muyang Li , Hongxu Chen , Guandong Xu

Privacy-preserving cross-domain recommendation (PPCDR) refers to preserving the privacy of users when transferring the knowledge from source domain to target domain for better performance, which is vital for the long-term development of…

信息检索 · 计算机科学 2023-05-26 Xinting Liao , Weiming Liu , Xiaolin Zheng , Binhui Yao , Chaochao Chen

In this work, we contribute towards the development of video-based epileptic seizure classification by introducing a novel framework (SETR-PKD), which could achieve privacy-preserved early detection of seizures in videos. Specifically, our…

人工智能 · 计算机科学 2023-09-19 Deval Mehta , Shobi Sivathamboo , Hugh Simpson , Patrick Kwan , Terence O`Brien , Zongyuan Ge

Advanced facial recognition technologies and recommender systems with inadequate privacy technologies and policies for facial interactions increase concerns about bioprivacy violations. With the proliferation of video and live-streaming…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Yubo Huang , Wenhao Feng , Xin Lai , Zixi Wang , Jingzehua Xu , Shuai Zhang , Hongjie He , Fan Chen

Many registration problems are ill-posed in homogeneous or noisy regions, and dense voxel-wise decoders can be unnecessarily high-dimensional. A sparse control-point parameterisation provides a compact, smooth deformation representation…

图像与视频处理 · 电气工程与系统科学 2026-03-19 Wen Yan , Qianye Yang , Yipei Wang , Shonit Punwani , Mark Emberton , Vasilis Stavrinides , Yipeng Hu , Dean Barratt

The reliance on accurate camera poses is a significant barrier to the widespread deployment of Neural Radiance Fields (NeRF) models for 3D reconstruction and SLAM tasks. The existing method introduces monocular depth priors to jointly…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Zhen Tan , Zongtan Zhou , Yangbing Ge , Zi Wang , Xieyuanli Chen , Dewen Hu

A reliable application of deep neural network classifiers requires robustness certificates against adversarial perturbations. Gaussian smoothing is a widely analyzed approach to certifying robustness against norm-bounded perturbations,…

机器学习 · 计算机科学 2024-09-23 Hossein Goli , Farzan Farnia

State-of-the-art 3D-field video-referenced Talking Face Generation (TFG) methods synthesize high-fidelity personalized talking-face videos in real time by modeling 3D geometry and appearance from reference portrait video. This capability…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Rui-qing Sun , Xingshan Yao , Tian Lan , Jia-Ling Shi , Chen-Hao Cui , Hui-Yang Zhao , Zhijing Wu , Chen Yang , Xian-Ling Mao

We propose and implement a Privacy-preserving Federated Learning ($PPFL$) framework for mobile systems to limit privacy leakages in federated learning. Leveraging the widespread presence of Trusted Execution Environments (TEEs) in high-end…

密码学与安全 · 计算机科学 2021-06-30 Fan Mo , Hamed Haddadi , Kleomenis Katevas , Eduard Marin , Diego Perino , Nicolas Kourtellis

In this paper, an artificial noise-aided strategy is presented for location-privacy preservation. A novel framework for the reduction of location-privacy leakage is introduced, where structured artificial noise is designed to degrade the…

信号处理 · 电气工程与系统科学 2023-02-20 Jianxiu Li , Urbashi Mitra

All-in-one image restoration aims to recover clear images from various degradation types and levels with a unified model. Nonetheless, the significant variations among degradation types present challenges for training a universal model,…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Xiangpeng Tian , Xiangyu Liao , Xiao Liu , Meng Li , Chao Ren

Gradient perturbation, widely used for differentially private optimization, injects noise at every iterative update to guarantee differential privacy. Previous work first determines the noise level that can satisfy the privacy requirement…

机器学习 · 计算机科学 2020-10-27 Da Yu , Huishuai Zhang , Wei Chen , Tie-Yan Liu , Jian Yin

While widely adopted in practical applications, face recognition has been critically discussed regarding the malicious use of face images and the potential privacy problems, e.g., deceiving payment system and causing personal sabotage.…

密码学与安全 · 计算机科学 2020-08-05 Jiaming Zhang , Jitao Sang , Xian Zhao , Xiaowen Huang , Yanfeng Sun , Yongli Hu

Noise suppression in seismic data processing is a crucial research focus for enhancing subsequent imaging and reservoir prediction. Deep learning has shown promise in computer vision and holds significant potential for seismic data…

地球物理 · 物理学 2024-08-06 Fei Li , Zhenbin Xia , Dawei Liu , Xiaokai Wang , Wenchao Chen , Juan Chen , Leiming Xu

In privacy-preserving mobile network transmission scenarios with heterogeneous client data, personalized federated learning methods that decouple feature extractors and classifiers have demonstrated notable advantages in enhancing learning…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Ming Yang , Dongrun Li , Xin Wang , Feng Li , Lisheng Fan , Chunxiao Wang , Xiaoming Wu , Peng Cheng