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Generative models trained on sensitive image datasets risk memorizing and reproducing individual training examples, making strong privacy guarantees essential. While differential privacy (DP) provides a principled framework for such…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Jasmine Bayrooti , Weiwei Kong , Natalia Ponomareva , Carlos Esteves , Ameesh Makadia , Amanda Prorok

Federated learning (FL) is a distributed learning paradigm that allows multiple decentralized clients to collaboratively learn a common model without sharing local data. Although local data is not exposed directly, privacy concerns…

Machine Learning · Computer Science 2024-10-02 Tongxin Yin , Xuwei Tan , Xueru Zhang , Mohammad Mahdi Khalili , Mingyan Liu

Traditional works have shown that patches in a natural image tend to redundantly recur many times inside the image, both within the same scale, as well as across different scales. Make full use of these multi-scale information can improve…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Wuzhen Shi , Feng Jiang , Debin Zhao

Face anonymization aims to conceal the visual identity of a face to safeguard the individual's privacy. Traditional methods like blurring and pixelation can largely remove identifying features, but these techniques significantly degrade…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Lin Yuan , Kai Liang , Xiong Li , Tao Wu , Nannan Wang , Xinbo Gao

Most existing Face Forgery Detection (FFD) models assume access to raw face images. In practice, under a client-server framework, private facial data may be intercepted during transmission or leaked by untrusted servers. Previous privacy…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Guoqing Ma , Xun Lin , Hui Ma , Ajian Liu , Yizhong Liu , Wenzhong Tang , Shan Yu , Chenqi Kong , Yi Yu

In privacy-preserving machine learning, differentially private stochastic gradient descent (DP-SGD) performs worse than SGD due to per-sample gradient clipping and noise addition. A recent focus in private learning research is improving the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Xinyu Tang , Ashwinee Panda , Vikash Sehwag , Prateek Mittal

The advent of numerous indoor location-based services (LBSs) and the widespread use of many types of mobile devices in indoor environments have resulted in generating a massive amount of people's location data. While geo-spatial data…

Cryptography and Security · Computer Science 2022-07-05 Hojjat Navidan , Vahideh Moghtadaiee , Niki Nazaran , Mina Alishahi

Malicious intelligent algorithms greatly threaten the security of social users' privacy by detecting and analyzing the uploaded photos to social network platforms. The destruction to DNNs brought by the adversarial attack sparks the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Jiawei Zhang , Jinwei Wang , Hao Wang , Xiangyang Luo

Face recognition based on the deep convolutional neural networks (CNN) shows superior accuracy performance attributed to the high discriminative features extracted. Yet, the security and privacy of the extracted features from deep learning…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Xingbo Dong , Zhihui Miao , Lan Ma , Jiajun Shen , Zhe Jin , Zhenhua Guo , Andrew Beng Jin Teoh

Methods that combine local and global features have recently shown excellent performance on multiple challenging deep image retrieval benchmarks, but their use of local features raises at least two issues. First, these local features simply…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Philippe Weinzaepfel , Thomas Lucas , Diane Larlus , Yannis Kalantidis

Gradient inversion attacks are often presented as a serious privacy threat in federated learning, with recent work reporting increasingly strong reconstructions under favorable experimental settings. However, it remains unclear whether such…

Cryptography and Security · Computer Science 2026-02-10 Viktor Valadi , Mattias Åkesson , Johan Östman , Fazeleh Hoseini , Salman Toor , Andreas Hellander

Snapshot compressive spectral imaging reconstruction aims to reconstruct three-dimensional spatial-spectral images from a single-shot two-dimensional compressed measurement. Existing state-of-the-art methods are mostly based on deep…

Image and Video Processing · Electrical Eng. & Systems 2024-08-27 Zongliang Wu , Ruiying Lu , Ying Fu , Xin Yuan

Object detection is a fundamental task in computer vision and has many applications in image processing. This paper proposes a new approach for object detection by applying scale invariant feature transform (SIFT) in an automatic…

Computer Vision and Pattern Recognition · Computer Science 2012-10-29 Reza Oji , Farshad Tajeripour

How to represent an image? While the visual world is presented in a continuous manner, machines store and see the images in a discrete way with 2D arrays of pixels. In this paper, we seek to learn a continuous representation for images.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Yinbo Chen , Sifei Liu , Xiaolong Wang

We investigate the construction of gradient-guided conditional diffusion models for reconstructing private images, focusing on the adversarial interplay between differential privacy noise and the denoising capabilities of diffusion models.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Tao Huang , Jiayang Meng , Hong Chen , Guolong Zheng , Xu Yang , Xun Yi , Hua Wang

Prior work on differential privacy analysis of randomized SGD algorithms relies on composition theorems, where the implicit (unrealistic) assumption is that the internal state of the iterative algorithm is revealed to the adversary. As a…

Machine Learning · Statistics 2022-10-18 Jiayuan Ye , Reza Shokri

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

In image fusion, images obtained from different sensors are fused to generate a single image with enhanced information. In recent years, state-of-the-art methods have adopted Convolution Neural Networks (CNNs) to encode meaningful features…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Vibashan VS , Jeya Maria Jose Valanarasu , Poojan Oza , Vishal M. Patel

Deep learning holds immense promise for aiding radiologists in breast cancer detection. However, achieving optimal model performance is hampered by limitations in availability and sharing of data commonly associated to patient privacy…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Richard Osuala , Daniel M. Lang , Anneliese Riess , Georgios Kaissis , Zuzanna Szafranowska , Grzegorz Skorupko , Oliver Diaz , Julia A. Schnabel , Karim Lekadir

Federated learning (FL) allows to train a massive amount of data privately due to its decentralized structure. Stochastic gradient descent (SGD) is commonly used for FL due to its good empirical performance, but sensitive user information…

Machine Learning · Computer Science 2021-02-10 Muah Kim , Onur Günlü , Rafael F. Schaefer