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Dive into the research topics where Jean-Claude Moissinac is active.

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Featured researches published by Jean-Claude Moissinac.


acm multimedia | 2007

GPAC: open source multimedia framework

Jean Le Feuvre; Cyril Concolato; Jean-Claude Moissinac

GPAC is a multimedia framework for research and academic purposes in different aspects of multimedia, with a focus on presentation technologies (graphics, animation and interactivity). The project started in 2003 with the initial goal to develop from scratch, in ANSI C, clean software compliant to the MPEG-4 Systems standard, a small and flexible alternative to the MPEG-4 reference software. Since then, the project has evolved into an advanced multimedia player, a multimedia packager and several servers. The project is intended to a wide audience ranging from end-users or content creators with development skills who want to experiment the new standards for interactive technologies or want to convert files for mobile devices, to developers who need players and/or server for multimedia streaming applications.


acm multimedia | 2011

Experimenting with multimedia advances using GPAC

Jean Le Feuvre; Cyril Concolato; Jean-Claude Dufourd; Romain Bouqueau; Jean-Claude Moissinac

Multimedia applications are challenging software and require collaboration of very different components such as networking, rendering, or scripting to provide a nice user experience. GPAC is an open source multimedia framework that implements a vast number of components and helps experimenting with different types of multimedia applications. It provides a multimedia packager, some servers and a player for dynamic and interactive multimedia content. In this paper, we present the recent additions to the project which allow experimenting with new applications such as dynamic home networking or rich broadcasting of interactive content on the latest devices, including with 3D displays. Such experiments can be useful in research work and, as illustrated, in academic environment for educational purposes.


international conference on image and signal processing | 2006

SEMAFOR: A Framework for Authentication of Aadaptive Multimedia Content and Delivery for Heterogeneous Networks

Ahmed Reda Kaced; Jean-Claude Moissinac

In this paper we propose SEMAFOR, a Web based platform for protecting adaptive multimedia content delivery in heterogeneous environments. It aims to deliver an end-to-end authenticity of original content exchanged in a heterogeneous network while allowing content adaptation by intermediary proxies between the content transmitter and the final users. Adaptation and authentication management are done by the intermediary proxies, transparently to connected hosts, which totally make an abstraction of these processes. SEMAFOR provides AMCA, a new content authentication framework based on a multi-hop signature scheme using a Merkle hash tree technique, and XSST, a secured transaction protocol that securely exchanges transactions using a message format to encapsulate these transactions in XML form


document engineering | 2007

Timed-fragmentation of SVG documents to control the playback memory usage

Cyril Concolato; Jean Le Feuvre; Jean-Claude Moissinac

The Scalable Vector Graphics (SVG) language allows in its version 1.2 the description of multimedia scenes including audio, video, vector graphics, interactivity and animations. This standard has been selected by the mobile industry as the format for vector graphics and rich media content. For this purpose, additional tools were introduced in the language to solve the problem of the playback of long-running SVG sequences on memory-constrained devices like mobile phones. However, the proposed tools are not entirely sufficient and solutions outside the scope of SVG are needed. This paper proposes a method, complementary to the SVG tools, to control the memory consumption while playing back long running SVG sequences. This method relies on the use of an auxiliary XML document to describe the timed-fragmentation of the SVG document and the storage and streaming properties of each SVG fragment. Using this method, this paper shows that some SVG documents can be stored, delivered and played as streams, and that their playback as streams brings an important memory consumption reduction while using a standard SVG 1.2 Tiny player.


IEEE Transactions on Circuits and Systems for Video Technology | 2003

Creating and encoding of cartoons using MPEG-4 BIFS: methods and results

Cyril Concolato; Jean-Claude Dufourd; Jean-Claude Moissinac

Our work focuses on the encoding of two-dimensional (2-D) graphics animated cartoons with MPEG-4. This stems from a need to stop encoding cartoons as videos and to start using methods more adapted to animated 2-D vector graphics sequences. We expected this could be an efficient coding with good versatility for various types of terminals. First, we present some technical specification for such cartoons. Next, we give an overview of MPEG-4 BIFS encoding methods. Then, we analyze how to optimize the use of these methods; some of our proposals could be useful for 2-D graphics applications other than animated cartoon. Last, we show some results with significantly better encoding efficiency over simple BIFS encoding.


document analysis systems | 2012

Web Document Analysis Based on Visual Segmentation and Page Rendering

Cong Kinh Nguyen; Laurence Likforman-Sulem; Jean-Claude Moissinac; Claudie Faure; Jeremy Lardon

This paper proposes an approach for segmenting a Web page into its semantic parts. Such analysis may be useful for adapting blog or other pages on small devices. In this approach, we take advantage of both dynamic layout after rendering and textual information. Our method segments the page into blocks and then classifies the blocks. A classification in semantic parts is performed thanks to a SVM-based machine learning approach using a set of 30 textual and visual-based features. Evaluation is conducted on a Web blog database. Results are provided for both block classification and blog segmentation into articles.


The Visual Computer | 2008

User-centric universal multimedia access in home networks

Bernhard Reiterer; Cyril Concolato; Janine Lachner; Jean Le Feuvre; Jean-Claude Moissinac; Stefano Lenzi; Stefano Chessa; Enrique Fernández Ferrá; Juan José González Menaya; Hermann Hellwagner

Much research is currently being conducted towards Universal Multimedia Access, aiming at removing barriers that arise when multimedia content is to be consumed with more and more heterogeneous devices and over diverse networks. We argue that users should be put at the center of the research work to enable user-centric multimedia access.In this paper we present the requirements for a user-centric multimedia access system in a networked home environment. These requirements are easy access to available content repositories, context awareness, content adaptation and session migration. After showing the limits of state-of-the-art technologies, we present the architecture of a system which allows unified access to the home network content, automatically delivered to rendering devices close to the user, adapted according to the rendering device constraints, and which is also capable of session mobility.


mobile ad hoc and sensor networks | 2007

Secure intermediary caching in mobile wireless networks using asymmetric cipher sequences based encryption

Ahmed Reda Kaced; Jean-Claude Moissinac

The use of proxies is commonplace in todays MANETs, where they are used for a huge variety of network services. However the main problem of using proxies is that the end-to-end nature of the communication is broken. This leads to some severe security problems. One of the main questions that arise is how content caching by intermediaries can be done when end-to-end security is required. In this paper, we will address the research issues of when and how end-to-end security, like confidentiality and authenticity can be preserved, in mobile ad hoc network communications, when having one or more cache proxies and router nodes in the data path. We propose a solution for an encryption scheme based on Asymmetric Cipher Sequence which allows to an intermediary nodes to cache data and convert the ciphertext for one person into the ciphertext for another person without revealing the secret decryption keys or the plaintext. Implementation results shows that we can simultaneously achieve high encryption through a wireless links.


distributed multimedia systems | 2015

Discovery and registration of components in multimodal systems distributed on the IoT

B. Helena Rodriguez; Jean-Claude Moissinac

One of the major gaps in the current HTML5 web platform, is the lack of interoperable means for a multimodal application to discover services and applications available in a given space and network for example, in smart houses or in applications for the Internet of Things. To address this gap, we produced a SOA approach that was submitted to the W3Cs Multimodal Working Group and validated as a draft recommendation that aims to allow the discovery and registration of components used in multimodal systems for the web of things. In this approach, the components are described and virtualized in a module communicating through two dedicated events, they are registered in a Resources Manager to facilitate the fine management of concurrent multimodal interactions, and the system supports an interoperable discovery, registration and filtering of the features provided by heterogeneous and dynamic components in the web of things. In this paper we will present the W3Cs Multimodal Architecture and Interfaces standard and explain the Discovery and Registration mechanism adopted to address the need of finding and integrating components into distributed and dynamic multimodal systems.


information integration and web-based applications & services | 2010

Multimodal instantiation of assistance services

B. Helena Rodriguez; Jean-Claude Moissinac; Isabelle M. Demeure

Our research focuses in a multimodal model of services for the dynamic composition of interactive features in multimedia. These services primarily do complex multimedia compositions in pervasive semantics systems. We propose a new protocol to enhance UPnP [14] and Bonjour [15] device descriptions with semantic multimodal descriptions and to extend the service discovery to high-level SOA services. This protocol bases on the upper-level ontology DOLCE+DnS Ultralite in conjunction with OWL-S and provides a flexible mean for multimodal rich media composition and context-aware presentation in a SOA architecture based on W3Cs Multimodal interaction framework (MMIF).

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Ahmed Reda Kaced

Centre national de la recherche scientifique

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Jirasri Deslis

Institut Mines-Télécom

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Ahmed Reda Kaced

Centre national de la recherche scientifique

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Isabelle M. Demeure

Centre national de la recherche scientifique

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