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Related papers: Privacy-Aware Activity Classification from First P…

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In this paper, we propose a methodology for early recognition of human activities from videos taken with a first-person viewpoint. Early recognition, which is also known as activity prediction, is an ability to infer an ongoing activity at…

Computer Vision and Pattern Recognition · Computer Science 2015-07-07 M. S. Ryoo , Thomas J. Fuchs , Lu Xia , J. K. Aggarwal , Larry Matthies

We focus on first-person action recognition from egocentric videos. Unlike third person domain, researchers have divided first-person actions into two categories: involving hand-object interactions and the ones without, and developed…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Sagar Verma , Pravin Nagar , Divam Gupta , Chetan Arora

RGB camera-based surveillance systems enable human action recognition for public safety and healthcare, yet raise serious privacy concerns. Existing methods rely on post-capture algorithms, which fail to protect privacy during data…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Mengyuan Liu , Ziyi Wang , Peiming Li , Junsong Yuan

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

Activity recognition has become a popular research branch in the field of pervasive computing in recent years. A large number of experiments can be obtained that activity sensor-based data's characteristic in activity recognition is…

Computer Vision and Pattern Recognition · Computer Science 2018-05-21 Li Xue , Si Xiandong , Nie Lanshun , Li Jiazhen , Ding Renjie , Zhan Dechen , Chu Dianhui

There is an increasing concern in computer vision devices invading users' privacy by recording unwanted videos. On the one hand, we want the camera systems to recognize important events and assist human daily lives by understanding its…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Zhongzheng Ren , Yong Jae Lee , Michael S. Ryoo

As visual assistant systems powered by visual language models (VLMs) become more prevalent, concerns over user privacy have grown, particularly for blind and low vision users who may unknowingly capture personal private information in their…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Jeffri Murrugarra-LLerena , Haoran Niu , K. Suzanne Barber , Hal Daumé , Yang Trista Cao , Paola Cascante-Bonilla

Although First Person Vision systems can sense the environment from the user's perspective, they are generally unable to predict his intentions and goals. Since human activities can be decomposed in terms of atomic actions and interactions…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Antonino Furnari , Sebastiano Battiato , Kristen Grauman , Giovanni Maria Farinella

People living with dementia often exhibit behavioural and psychological symptoms of dementia that can put their and others' safety at risk. Existing video surveillance systems in long-term care facilities can be used to monitor such…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Pratik K. Mishra , Andrea Iaboni , Bing Ye , Kristine Newman , Alex Mihailidis , Shehroz S. Khan

In this paper, a simple yet efficient activity recognition method for first-person video is introduced. The proposed method is appropriate for representation of high-dimensional features such as those extracted from convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Reza Kahani , Alireza Talebpour , Ahmad Mahmoudi-Aznaveh

Automatically understanding and recognising human affective states using images and computer vision can improve human-computer and human-robot interaction. However, privacy has become an issue of great concern, as the identities of people…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Jimiama M. Mase , Natalie Leesakul , Fan Yang , Grazziela P. Figueredo , Mercedes Torres Torres

Video crime detection is a significant application of computer vision and artificial intelligence. However, existing datasets primarily focus on detecting severe crimes by analyzing entire video clips, often neglecting the precursor…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Ryozo Masukawa , Sanggeon Yun , Yoshiki Yamaguchi , Mohsen Imani

Computer-vision hospital systems can greatly assist healthcare workers and improve medical facility treatment, but often face patient resistance due to the perceived intrusiveness and violation of privacy associated with visual…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Edward Chou , Matthew Tan , Cherry Zou , Michelle Guo , Albert Haque , Arnold Milstein , Li Fei-Fei

The recognition of human actions in videos is one of the most active research fields in computer vision. The canonical approach consists in a more or less complex preprocessing stages of the raw video data, followed by a relatively simple…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Enrico Picco , Piotr Antonik , Serge Massar

Activity recognition is the ability to identify and recognize the action or goals of the agent. The agent can be any object or entity that performs action that has end goals. The agents can be a single agent performing the action or group…

Machine Learning · Computer Science 2019-06-19 Ashwin Geet D'Sa , B. G. Prasad

Vision classifiers are often trained on proprietary datasets containing sensitive information, yet the models themselves are frequently shared openly under the privacy-preserving assumption. Although these models are assumed to protect…

Machine Learning · Computer Science 2025-02-04 Pirzada Suhail , Amit Sethi

Visual localization (VL) is the task of estimating the camera pose in a known scene. VL methods, a.o., can be distinguished based on how they represent the scene, e.g., explicitly through a (sparse) point cloud or a collection of images or…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Maxime Pietrantoni , Martin Humenberger , Torsten Sattler , Gabriela Csurka

There has been significant amount of research work on human activity classification relying either on Inertial Measurement Unit (IMU) data or data from static cameras providing a third-person view. Using only IMU data limits the variety and…

Computer Vision and Pattern Recognition · Computer Science 2019-06-03 Yantao Lu , Senem Velipasalar

This paper presents a novel approach for automatic recognition of human activities for video surveillance applications. We propose to represent an activity by a combination of category components, and demonstrate that this approach offers…

Computer Vision and Pattern Recognition · Computer Science 2015-03-03 Weiyao Lin , Ming-Ting Sun , Radha Poovendran , Zhengyou Zhang

Human actions recognition is a fundamental task in artificial vision, that has earned a great importance in recent years due to its multiple applications in different areas. %, such as the study of human behavior, security or video…