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Related papers: PrivHAR: Recognizing Human Actions From Privacy-pr…

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Vision is the most important sense for people, and it is also one of the main ways of cognition. As a result, people tend to utilize visual content to capture and share their life experiences, which greatly facilitates the transfer of…

Cryptography and Security · Computer Science 2023-03-30 Ruoyu Zhao , Yushu Zhang , Tao Wang , Wenying Wen , Yong Xiang , Xiaochun Cao

With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams. Recognising actions and detecting action transitions…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Harshala Gammulle , David Ahmedt-Aristizabal , Simon Denman , Lachlan Tychsen-Smith , Lars Petersson , Clinton Fookes

Many video classification applications require access to personal data, thereby posing an invasive security risk to the users' privacy. We propose a privacy-preserving implementation of single-frame method based video classification with…

Cryptography and Security · Computer Science 2021-02-09 Sikha Pentyala , Rafael Dowsley , Martine De Cock

We investigate privacy-preserving, video-based action recognition in deep learning, a problem with growing importance in smart camera applications. A novel adversarial training framework is formulated to learn an anonymization transform for…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Zhenyu Wu , Haotao Wang , Zhaowen Wang , Hailin Jin , Zhangyang Wang

Video privacy leakage is becoming an increasingly severe public problem, especially in cloud-based video surveillance systems. It leads to the new need for secure cloud-based video applications, where the video is encrypted for privacy…

Image and Video Processing · Electrical Eng. & Systems 2021-08-31 Xianhao Tian , Peijia Zheng , Jiwu Huang

The goal of human action recognition is to temporally or spatially localize the human action of interest in video sequences. Temporal localization (i.e. indicating the start and end frames of the action in a video) is referred to as…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Waqas Sultani , Qazi Ammar Arshad , Chen Chen

Considerable effort has been made in privacy-preserving video human activity recognition (HAR). Two primary approaches to ensure privacy preservation in Video HAR are differential privacy (DP) and visual privacy. Techniques enforcing DP…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Allassan Tchangmena A Nken , Susan Mckeever , Peter Corcoran , Ihsan Ullah

With an increasing number of users sharing information online, privacy implications entailing such actions are a major concern. For explicit content, such as user profile or GPS data, devices (e.g. mobile phones) as well as web services…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Tribhuvanesh Orekondy , Bernt Schiele , Mario Fritz

The development of artificial intelligence has significantly transformed people's lives. However, it has also posed a significant threat to privacy and security, with numerous instances of personal information being exposed online and…

Cryptography and Security · Computer Science 2024-02-28 Le Yang , Miao Tian , Duan Xin , Qishuo Cheng , Jiajian Zheng

The widespread adoption of face recognition has led to increasing privacy concerns, as unauthorized access to face images can expose sensitive personal information. This paper explores face image protection against viewing and recovery…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yuxi Mi , Zhizhou Zhong , Yuge Huang , Jiazhen Ji , Jianqing Xu , Jun Wang , Shaoming Wang , Shouhong Ding , Shuigeng Zhou

The wide adoption of wearable smart devices with onboard cameras greatly increases people's concern on privacy infringement. Here we explore the possibility of easing persons from photos captured by smart devices according to their privacy…

Cryptography and Security · Computer Science 2014-10-27 Lan Zhang , Kebin Liu , Xiang-Yang Li , Puchun Feng , Cihang Liu , Yunhao Liu

Eye tracking is handled as one of the key technologies for applications that assess and evaluate human attention, behavior, and biometrics, especially using gaze, pupillary, and blink behaviors. One of the challenges with regard to the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Efe Bozkir , Ali Burak Ünal , Mete Akgün , Enkelejda Kasneci , Nico Pfeifer

Preserving privacy of continuous and/or high-dimensional data such as images, videos and audios, can be challenging with syntactic anonymization methods which are designed for discrete attributes. Differential privacy, which provides a more…

Machine Learning · Computer Science 2017-12-04 Jihun Hamm

Visual localization is the task of estimating the camera pose from which a given image was taken and is central to several 3D computer vision applications. With the rapid growth in the popularity of AR/VR/MR devices and cloud-based…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Kunal Chelani , Torsten Sattler , Fredrik Kahl , Zuzana Kukelova

Visual-based human action recognition can be found in various application fields, e.g., surveillance systems, sports analytics, medical assistive technologies, or human-robot interaction frameworks, and it concerns the identification and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Antonios Gasteratos , Stavros N. Moutsis , Konstantinos A. Tsintotas , Yiannis Aloimonos

Deploying human activity recognition (HAR) at home is still rare because sensor signals vary wildly across houses, people, and time, essentially requiring in-situ data collection and training. Prior approaches use cameras to generate…

Camera-based person re-identification is a heavily privacy-invading task by design, benefiting from rich visual data to match together person representations across different cameras. This high-dimensional data can then easily be used for…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Lucas Maris , Yuki Matsuda , Keiichi Yasumoto

Vision-based activity recognition is essential for security, monitoring and surveillance applications. Further, real-time analysis having low-quality video and contain less information about surrounding due to poor illumination, and…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Tej Singh , Dinesh Kumar Vishwakarma

Human Action Recognition (HAR), one of the most important tasks in computer vision, has developed rapidly in the past decade and has a wide range of applications in health monitoring, intelligent surveillance, virtual reality, human…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Zhou Shuchang

As cameras become ubiquitous in our living environment, invasion of privacy is becoming a growing concern. A common approach to privacy preservation is to remove personally identifiable information from a captured image, but there is a risk…

Image and Video Processing · Electrical Eng. & Systems 2024-07-02 Yoko Sogabe , Shiori Sugimoto , Ayumi Matsumoto , Masaki Kitahara