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Fine-tuning vision-language models (VLMs) like CLIP to downstream tasks is often necessary to optimize their performance. However, a major obstacle is the limited availability of labeled data. We study the use of pseudolabels, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Cristina Menghini , Andrew Delworth , Stephen H. Bach

The massive collection of personal data by personalization systems has rendered the preservation of privacy of individuals more and more difficult. Most of the proposed approaches to preserve privacy in personalization systems usually…

Cryptography and Security · Computer Science 2015-04-28 Mohammad Alaggan , Sébastien Gambs , Anne-Marie Kermarrec

General-purpose foundation models have led to recent breakthroughs in artificial intelligence. In remote sensing, self-supervised learning (SSL) and Masked Image Modeling (MIM) have been adopted to build foundation models. However, these…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Fan Liu , Delong Chen , Zhangqingyun Guan , Xiaocong Zhou , Jiale Zhu , Qiaolin Ye , Liyong Fu , Jun Zhou

Enabling efficient text-video retrieval on edge-end devices is critical for real-world applications. Yet, existing methods face a critical challenge in balancing accuracy and computational efficiency: uniform frame sampling methods ensure…

Multimedia · Computer Science 2025-07-22 Deyu Zhang , Tingting Long , Jinrui Zhang , Ligeng Chen , Ju Ren , Yaoxue Zhang

Face authentication usually utilizes deep learning models to verify users with high recognition accuracy. However, face authentication systems are vulnerable to various attacks that cheat the models by manipulating the digital counterparts…

Cryptography and Security · Computer Science 2021-06-16 Man Zhou , Qian Wang , Qi Li , Peipei Jiang , Jingxiao Yang , Chao Shen , Cong Wang , Shouhong Ding

The widespread deployment of high-resolution visual sensing systems, coupled with the rise of foundation models, has amplified privacy risks in video-based applications. Differentially private pixelization offers mathematically guaranteed…

Cryptography and Security · Computer Science 2025-11-07 Ming Liu

Commercial head-mounted eye trackers provide useful features to customers in industry and research but are expensive and rely on closed source hardware and software. This limits the application areas and use of mobile eye tracking to expert…

Computer Vision and Pattern Recognition · Computer Science 2014-05-02 Moritz Kassner , William Patera , Andreas Bulling

The success of deep learning based face recognition systems has given rise to serious privacy concerns due to their ability to enable unauthorized tracking of users in the digital world. Existing methods for enhancing privacy fail to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Fahad Shamshad , Muzammal Naseer , Karthik Nandakumar

Existing research on privacy-preserving Human Activity Recognition (HAR) typically evaluates methods against a binary paradigm: clear video versus a single privacy transformation. This limits cross-method comparability and obscures the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Samar Ansari

Remote sensing image-text retrieval plays a crucial role in remote sensing interpretation, yet remains challenging under both closed-domain and open-domain scenarios due to semantic noise and domain shifts. To address these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Jiancheng Pan , Muyuan Ma , Qing Ma , Cong Bai , Shengyong Chen

To ensure the privacy of sensitive data used in the training of deep learning models, a number of privacy-preserving methods have been designed by the research community. However, existing schemes are generally designed to work with textual…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Yuexin Xiang , Tiantian Li , Wei Ren , Tianqing Zhu , Kim-Kwang Raymond Choo

Crowd management relies on inspection of surveillance video either by operators or by object detection models. These models are large, making it difficult to deploy them on resource constrained edge hardware. Instead, the computations are…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Sander De Coninck , Sam Leroux , Pieter Simoens

Sequential change-point detection seeks to rapidly identify distributional changes in streaming data while controlling false alarms. Existing multi-stream detection methods typically rely on non-private access to raw observations or…

Statistics Theory · Mathematics 2026-04-16 Lixing Zhang , Liyan Xie , Ruizhi Zhang

Generalized Few-Shot Semantic Segmentation (GFSS) aims to extend a segmentation model to novel classes with only a few annotated examples while maintaining performance on base classes. Recently, pretrained vision-language models (VLMs) such…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Jie Liu , Jiayi Shen , Pan Zhou , Jan-Jakob Sonke , Efstratios Gavves

Visual localization is the task of estimating the camera pose of an image relative to a scene representation. In practice, visual localization systems are often cloud-based. Naturally, this raises privacy concerns in terms of revealing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Vojtech Panek , Patrik Beliansky , Zuzana Kukelova , Torsten Sattler

We propose HeroCrystal, a novel privacy-preserving framework for multi-camera domain-adaptive object detection, addressing challenges such as data privacy, class imbalance, and heterogeneous architectures. Our framework consists of three…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Peggy Joy Lu , Wei-Yu Chen , Yao-Tsung Huang , Vincent Shin-Mu Tseng

Secure communication is essential in covert and safety-critical settings where verbal interactions may expose user intent or operational context. Wearable gesture-based communication enables low-effort, nonverbal interaction, but existing…

Cryptography and Security · Computer Science 2026-02-10 Tasnia Ashrafi Heya , Sayed Erfan Arefin

Understanding human movement and city dynamics has always been challenging. From traditional methods of manually observing the city's inhabitant, to using cameras, to now using sensors and more complex technology, the field of urban…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Jack Brady , Andrew Dailey , Kristen Schang , Zo Vic Shong

An important concern in end user development (EUD) is accidentally embedding personal information in program artifacts when sharing them. This issue is particularly important in GUI-based programming-by-demonstration (PBD) systems due to…

Human-Computer Interaction · Computer Science 2020-07-15 Toby Jia-Jun Li , Jingya Chen , Brandon Canfield , Brad A. Myers

Lensless imaging can provide visual privacy due to the highly multiplexed characteristic of its measurements. However, this alone is a weak form of security, as various adversarial attacks can be designed to invert the one-to-many scene…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Eric Bezzam , Martin Vetterli , Matthieu Simeoni