Concept

Computer and network surveillance

Related publications (91)

Video surveillance using JPEG 2000

This paper describes a video surveillance system which is composed of three key components, smart cameras, a server, and clients, connected through IP-networks in wired or wireless configurations. The system has been designed so as to protect the privacy o ...

2004

BEHAVIORAL FILTERING OF HUMAN TRAJECTORIES FOR AUTOMATIC-MULTI-TRACK INITIATION

Michel Bierlaire, Jean-Philippe Thiran, Gianluca Antonini

In this paper we describe a new approach for the multitrack initiation problem. We propose an extensive use of the top-view reconstruction of the scene to solve the detection step in tracking pedestrians. We leave a large set of starting hypothetical movin ...

2004

Trajectories clustering in ICA space: an application to automatic counting of pedestrians in video sequences

Jean-Philippe Thiran, Gianluca Antonini

In this paper we propose a method for the automatic counting of pedestrians in video sequences for (automatic) video surveillance applications. We analyse the trajectory data set provided by a detection/tracking system. When using classical target detectio ...

IEEE2004

Simulation of Pedestrian Behaviour using a Discrete Choice Model Calibrated on Actual Motion Data

Michel Bierlaire, Gianluca Antonini, Matthias Weber

Pedestrian behavioral modeling is a topic that is receiving more and more attention in different areas of application such as panic analysis, building evacuation and surveillance systems. We propose a model based on discrete choice theory for pedestrian dy ...

2004

Behavioral dynamics for pedestrians

Michel Bierlaire, Gianluca Antonini, Matthias Weber

The objective of this paper is to identify the behavioral issues arising in the context of pedestrian dynamics, analyze how they have been addressed in the literature and propose some potential research tracks. We particularly focus on an application in th ...

IEEE2003

Spatio-Temporal Shadow Segmentation and Tracking

Touradj Ebrahimi, Elena Salvador

Shadow segmentation is a critical issue for systems aiming at extracting, tracking or recognizing objects in a given scene. Shadows can in fact modify the shape and colour of objects and therefore affect scene analysis and interpretation systems in many ap ...

SPIE2003

Small Worlds in Security Systems: an Analysis of the PGP Certificate Graph

Jean-Pierre Hubaux, Levente Buttyan, Srdan Capkun

We propose a new approach to securing computer networks. With this approach, we achieve security in a fully self-organized manner; by this we mean that to secure a computer network, a security system does not require any kind of certification authority or ...

2002

Min-plus System Theory Applied to Communication Networks

Jean-Yves Le Boudec, Patrick Thiran

Network Calculus is a set of recent developments, which provide a deep insight into flow problems encountered in networking. It can be viewed as the system theory that applies to computer networks. Contrary to traditional system theory, it relies on max-pl ...

2002

Towards a UML Profile for Software Architecture

Mohamed Mancona Kandé

To formally describe architectures of software systems, specific languages called Architecture Description Languages (ADLs) have been developed by academic institutions and research labs. However, more and more research and industrial projects are using th ...

2000

Evaluation of video segmentation methods for surveillance applications

Touradj Ebrahimi

Current research on performance evaluation of video segmentation methods is primarily focussed on the development of objective figures of merit. There is no standardised methodology for subjective evaluations of segmentation performance and these are curre ...

2000

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