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Keypoint detection and local feature description are fundamental tasks in robotic perception, critical for applications such as SLAM, robot localization, feature matching, pose estimation, and 3D mapping. While existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jiakai Lin , Jinchang Zhang , Guoyu Lu

Current developments in Enterprise Systems observe a paradigm shift, moving the needle from the backend to the edge sectors of those; by distributing data, decentralizing applications and integrating novel components seamlessly to the…

Cryptography and Security · Computer Science 2019-07-10 Laurent Gomez , Marcus Wilhelm , José Márquez , Patrick Duverger

In this work, we use a ceiling-mounted omni-directional camera to detect people in a room. This can be used as a sensor to measure the occupancy of meeting rooms and count the amount of flex-desk working spaces available. If these devices…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Timothy Callemein , Kristof Van Beeck , Toon Goedemé

In the current era, biometric based access control is becoming more popular due to its simplicity and ease to use by the users. It reduces the manual work of identity recognition and facilitates the automatic processing. The face is one of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Chaitanya Nagpal , Shiv Ram Dubey

A privacy-preserving support vector machine (SVM) computing scheme is proposed in this paper. Cloud computing has been spreading in many fields. However, the cloud computing has some serious issues for end users, such as the unauthorized…

Cryptography and Security · Computer Science 2020-01-08 Takahiro Maekawa , Ayana Kawamura , Takayuki Nakachi , Hitoshi Kiya

As the Internet of Things (IoT) becomes deeply embedded in daily life, users are increasingly concerned about privacy leakage, especially from video data. Since frame-by-frame protection in large-scale video analytics (e.g., smart…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Yunhao Yao , Zhiqiang Wang , Ruiqi Li , Haoran Cheng , Puhan Luo , Xiangyang Li

The widespread adoption of convolutional neural networks (CNNs) in resource-constrained scenarios has driven the development of Machine Learning as a Service (MLaaS) system. However, this approach is susceptible to privacy leakage, as the…

Cryptography and Security · Computer Science 2025-08-20 Jinyu Lu , Xinrong Sun , Yunting Tao , Tong Ji , Fanyu Kong , Guoqiang Yang

This paper aims to improve privacy-preserving visual recognition, an increasingly demanded feature in smart camera applications, by formulating a unique adversarial training framework. The proposed framework explicitly learns a degradation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Zhenyu Wu , Zhangyang Wang , Zhaowen Wang , Hailin Jin

A privacy-preserving clothing classification scheme is presented to enable secure occupant-centric control (OCC) systems. Although the utilization of camera images for HVAC control has been widely studied to optimize thermal comfort,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Tatsuya Chuman , Yousuke Udagawa , Hitoshi Kiya

New generation head-mounted displays, such as VR and AR glasses, are coming into the market with already integrated eye tracking and are expected to enable novel ways of human-computer interaction in numerous applications. However, since…

Cryptography and Security · Computer Science 2021-12-21 Efe Bozkir , Onur Günlü , Wolfgang Fuhl , Rafael F. Schaefer , Enkelejda Kasneci

Many critical applications rely on cameras to capture video footage for analytical purposes. This has led to concerns about these cameras accidentally capturing more information than is necessary. In this paper, we propose a deep learning…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Gautham Ramajayam , Tao Sun , Chiu C. Tan , Lannan Luo , Haibin Ling

We study the training of Vision Transformers for semi-supervised image classification. Transformers have recently demonstrated impressive performance on a multitude of supervised learning tasks. Surprisingly, we show Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Zejia Weng , Xitong Yang , Ang Li , Zuxuan Wu , Yu-Gang Jiang

IoT devices have become indispensable components of our lives, and the advancement of AI technologies will make them even more pervasive, increasing the vulnerability to malfunctions or cyberattacks and raising privacy concerns. Encryption…

Cryptography and Security · Computer Science 2026-04-15 Anca Hangan , Dragos Lazea , Tudor Cioara

Optical and hybrid convolutional neural networks (CNNs) recently have become of increasing interest to achieve low-latency, low-power image classification and computer vision tasks. However, implementing optical nonlinearity is challenging,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Anna Wirth-Singh , Jinlin Xiang , Minho Choi , Johannes E. Fröch , Luocheng Huang , Shane Colburn , Eli Shlizerman , Arka Majumdar

Privacy-preserving network anomaly detection has become an essential area of research due to growing concerns over the protection of sensitive data. Traditional anomaly detection models often prioritize accuracy while neglecting the…

Machine Learning · Computer Science 2025-02-19 Shaobo Liu , Zihao Zhao , Weijie He , Jiren Wang , Jing Peng , Haoyuan Ma

Tensor networks, widely used for providing efficient representations of low-energy states of local quantum many-body systems, have been recently proposed as machine learning architectures which could present advantages with respect to…

Conventional adversarial defenses reduce classification accuracy whether or not a model is under attacks. Moreover, most of image processing based defenses are defeated due to the problem of obfuscated gradients. In this paper, we propose a…

Machine Learning · Computer Science 2020-05-19 MaungMaung AprilPyone , Hitoshi Kiya

The robustness of image recognition algorithms remains a critical challenge, as current models often depend on large quantities of labeled data. In this paper, we propose a hybrid approach that combines the adaptability of neural networks…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Sina Ditzel , Achref Jaziri , Iuliia Pliushch , Visvanathan Ramesh

In this paper, we propose a model protection method for convolutional neural networks (CNNs) with a secret key so that authorized users get a high classification accuracy, and unauthorized users get a low classification accuracy. The…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 MaungMaung AprilPyone , Hitoshi Kiya

Existing visual change detectors usually adopt CNNs or Transformers for feature representation learning and focus on learning effective representation for the changed regions between images. Although good performance can be obtained by…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Bo Jiang , Zitian Wang , Xixi Wang , Ziyan Zhang , Lan Chen , Xiao Wang , Bin Luo