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Enabling Privacy For Distributed Video Coding by Transform Domain Scrambling

Publications associées (45)

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Detecting Abandoned Luggage Items in a Public Space

Daniel Gatica-Perez, Kevin Smith, Pedro Manuel Da Silva Quelhas

Visual surveillance is an important computer vision research problem. As more and more surveillance cameras appear around us, the demand for automatic methods for video analysis is increasing. Such methods have broad applications including surveillance for ...

2006

Detecting Abandoned Luggage Items in a Public Space

Daniel Gatica-Perez, Kevin Smith, Pedro Manuel Da Silva Quelhas

IDIAP2006

Smart video surveillance system preserving privacy

Touradj Ebrahimi, Frédéric Dufaux

In this paper, we present a smart video surveillance system based on standard technologies and wired or wireless IP networking. The key novelty of the system is that it protects the privacy of people under surveillance. More specifically, a video analysis ...

2005

Surveillance Video for Mobile Devices

Touradj Ebrahimi

In this paper, we present a video encoding scheme that uses object-based adaptation to deliver surveillance video to mobile devices. The method relies on a set of complementary video adaptation strategies and generates content that matches various applianc ...

IEEE2005

Trajectory Analysis for Sport and Video Surveillance

Jacques Jacot, Florian Luisier, Pierre Roduit

In video surveillance and sports analysis applications, object trajectories offer the possibility of extracting rich information on the underlying behavior of the moving targets. To this end we introduce an extension of Point Distribution Models (PDM) to a ...

CVC2005

Real-Time Generation of Annotated Video for Surveillance

Touradj Ebrahimi

We present a system that generates annotated video in realtime. Moving objects are first automatically extracted by means of video analysis and then coded using MPEG4. Moreover, an MPEG7 description of object features is generated. This description is us ...

SPIE2005

Critical Video Quality for Distributed Automated Video Surveillance

Large-scale distributed video surveillance systems pose new scalability challenges. Due to the large number of video sources in such systems, the amount of bandwidth required to transmit video streams for monitoring often strains the capability of the netw ...

2005

Fraud within Asymmetric Multi-Hop Cellular Networks

Gildas Avoine

At Financial Cryptography 2003, Jakobsson, Hubaux, and Buttyan suggested a lightweight micro-payment scheme aimed at encouraging routing collaboration in asymmetric multi-hop cellular networks. We will show in this paper that this scheme suffers from some ...

2005

On the Asymptotic Distortion Behavior of the Distributed Karhunen-Loève Transform

Martin Vetterli, Olivier Roy

The ability to design efficient distributed communications systems heavily depends on a proper understanding of the distortion incurred by their constituting elements. To this end, we study the mean squared reconstruction error behavior of the distributed ...

2005

Video surveillance using JPEG 2000

Touradj Ebrahimi, Frédéric Dufaux

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