Concept

Computer and network surveillance

Publications associées (91)

Game Theory Meets Network Security and Privacy

This survey provides a structured and comprehensive overview of the research contributions that analyze and solve security and privacy problems in computer networks by game-theoretic approaches. A selected set of works are presented to highlight the applic ...

ACM Surveys2012

3-D Relative Positioning Sensor for Indoor Flying Robots

Dario Floreano, Jean-Christophe Zufferey, Timothy Stirling, James Roberts

Swarms of indoor flying robots are promising for many applications, including searching tasks in collapsing buildings, or mobile surveillance and monitoring tasks in complex man-made structures. For tasks that employ several flying robots, spatial-coordina ...

Springer Verlag2012

3D Objects Localization Using Fuzzy Approach and Hierarchical Belief Propagation: Application at Level Crossings

Jacques Jacot, Alain Dufaux

Technological solutions for obstacle-detection systems have been proposed to prevent accidents in safety-transport applications. In order to avoid the limits of these proposed technologies, an obstacle-detection system utilizing stereo cameras is proposed ...

Hindawi Publishing Corporation2011

Introducing Crossmodal Biometrics:Person Identification from Distinct Audio & Visual Streams

Sébastien Marcel, Anindya Roy

Person identification using audio or visual biometrics is a well-studied problem in pattern recognition. In this scenario, both training and testing are done on the same modalities. However, there can be situations where this condition is not valid, i.e. t ...

2010

Introducing Crossmodal Biometrics: Person Identification from Distinct Audio & Visual Streams

Sébastien Marcel, Anindya Roy

Idiap2010

Reducing Frame Rate for Object Tracking

Object tracking is commonly used in video surveillance, but typically video with full frame rate is sent. We previously have shown that full frame rate is not needed, but it is unclear what the appropriate frame rate to send or whether we can further reduc ...

2010

A Framework for the Validation of Privacy Protection Solutions in Video Surveillance

Touradj Ebrahimi, Frédéric Dufaux

The issue of privacy protection in video surveillance has drawn a lot of interest lately. However, thorough performance analysis and validation is still lacking, especially regarding the fulfillment of privacy-related requirements. In this paper, we put fo ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Private Sharing of User Location over Online Social Networks

Jean-Pierre Hubaux, Julien Freudiger, Raoul Neu

Online social networks increasingly allow mobile users to share their location with their friends. Much to the detriment of users’ privacy, this also means that social network operators collect users’ lo- cation. Similarly, third parties can learn users’ l ...

2010

Towards Generic Detection of Unusual Events in Video Surveillance

Touradj Ebrahimi, Frédéric Dufaux, Ivan Ivanov

In this paper, we consider the challenging problem of unusual event detection in video surveillance systems. The proposed approach makes a step toward generic and automatic detection of unusual events in terms of velocity and acceleration. At first, the mo ...

2009

Analysis of the Limits of Graph-Based Object Duplicate Detection

Touradj Ebrahimi, Lutz Goldmann, Péter Vajda

In this paper, we consider the evaluation of graph-based object duplicate detection. Several applications require accurate and efficient object duplicate detection methods, such as automatic video and image tag propagation, video surveillance, and high lev ...

2009

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