This paper presents the constraints involved by MPEG-4 to copyright protection systems based upon watermarking technology. It proposes also an assessment methodology in order to evaluate such systems in terms of robustness to compression and quality.
In this paper, we present the current status of the JPWL standardization work item. JPWL is an extension of the JPEG 2000 baseline specification in order to enable the efficient transmission of JPEG 2000 codestream over an error-prone network. In particular, JPWL supports a set of tools and methods for error protection and correction such as Forward Error… (More)
— In this paper, a backward compatible header error protection mechanism is described. It consists of the addition of a dedicated marker segment to a JPEG 2000 codestream, that will contain the error correction data generated by a block error correction code (e.g. a Reed Solomon code). This mechanism allows to leave the original data intact, hence providing… (More)
ALADDIN  is a multidisciplinary project that is developing novel techniques, architectures, and mechanisms for multi-agent systems in uncertain and dynamic environments. The application focus of the project is disaster management. Research within a number of themes is being pursued and this is considering different aspects of the interaction between… (More)
This paper presents research on enabling cooperative decision strategies in a distributed sensor network. The paper begins with an introduction to distributed sensor networks and outlines two levels of cooperation: implicit and explicit cooperation. Implicit cooperation is the process of building and maintaining a common distributed picture where explicit… (More)
The EU FP6 WCAM (Wireless Cameras and AudioVisual Seamless Networking) project aims to study, develop and validate a wireless, seamless and secured end-to-end networked audiovisual system for video surveillance and multimedia distribution applications. This paper describes the video transmission aspects of the project, with contributions in the areas of… (More)
In this paper, we present an integrated system for video surveillance developed within the European IST WCAM project, using only standard multimedia and networking tools. The advantages of such a system, while allowing cost reduction and interoperability, is to benefit from the fast technological evolution of the video encoding and distribution tools.