Multimedia applications for playing with digitized theater performances

International audienceThis article presents a multimedia production chain that specializes in semantically annotated digitized theater performances. Semantic annotations--we prefer the term descriptions--are expressed in a description language that combines object-oriented features, taxonomical inheritance and temporal aggregations. The descriptions that are produced from several types of content related to the same theater play are synchronized at several levels of granularity providing rich relationships between the narrative structure of the text of the play and the narrative structure of the digitized theater performances. Two applications for multimedia access and navigation are presented in this paper, namely Dual Players, a navigation application that allows to synchronously play acts and scenes of two recordings; and Synthesizer that produces a raw publication of a new audiovisual document on the basis of the recordings

Using grammar induction to discover the structure of recurrent TV programs

International audienceVideo structuring, in particular applied to TV programs which have strong editing structures, mostly relies on supervised approaches either to retrieve a known structure for which a model has been obtained or to detect key elements from which a known structure is inferred. In this paper, we propose an unsupervised approach to recurrent TV program structuring, exploiting the repetitiveness of key structural elements across episodes of the same show. We cast the problem of structure discovery as a grammatical inference problem and show that a suited symbolic representation can be obtained by filtering generic events based on their reoccurring property. The method follows three steps: i) generic event detection, ii) selection of events relevant to the structure and iii) grammatical inference from a symbolic representation. Experimental evaluation is performed on three types of shows, viz., game shows, news and magazines, demonstrating that grammatical inference can be used to discover the structure of recurrent programs with very limited supervision

Estimer automatiquement les différences de représentation existant entre les femmes et les hommes dans les médias

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Finite Element Approximation of a Geometrically Exact Shell Model

Projet MENUSIN, Projet MODULEFThe purpose of this work is to develop finite element models for geometrically exact nonlinear shells. The originality of our approach is to work in a fixed cartesian basis. After a brief introduction of the shell model, the paper presents two finite elements approximations specially developed for this problem. The first uses conforming Argyris triangles, the second develops nonlinear DKT triangles. Both models are validated by several numerical tests

PACE: an Experimental Web-Based Audiovisual Application using FDL

International audienceThis paper describes the PACE experimental multimedia application that aims at providing automatic tools for web browsing of television program collections; experimentations are currently in progress with a fifty-four Le Grand Échiquier show collection. PACE has been built with the FERIA framework and relies on multiple automatic analysis tools. It is generic enough to easily adapt to other collections. Emphasis is made on the new audiovisual documents description language FDL as it is the core part of FERIA, with a particular attention paid on how it operates in PACE

Content-based discovery of multiple structures from episodes of recurrent TV programs based on grammatical inference

International audienceTV program structuring is essential for program indexing and retrieval. Practically, various types of programs lead to a diversity of program structures. In addition, several episodes of a recurrent program might exhibit different structures. Previous work mostly relies on supervised approaches by adopting prior knowledge about program structures. In this paper, we address the problem of unsupervised program structuring with minimal prior knowledge about the programs. We propose an approach to identify multiple structures and infer structural grammars for recurrent TV programs of different types. It involves three sub-problems: i) we determine the structural elements contained in programs with minimal knowledge about which type of elements may be present; ii) we identify multiple structures for the programs if any and model the structures of programs; iii) we generate the structural grammar for each corresponding structure. Finally, we conduct use cases on real recurrent programs of three different types to demonstrate the effectiveness of proposed approach

Pompéi. Villa de Diomède

Dans la continuité du programme initié en 2013, l’objectif de la deuxième campagne menée sur la Villa de Diomède était de mettre en évidence la chronologie du bâtiment et son rapport aux espaces environnants. Pour ce faire, l’étude archéologique a été centrée sur les façades est et sud de la villa, afin d’éclaircir le rapport à la rue (via delle Tombe) et aux tombes adjacentes. Il convenait d’explorer davantage l’évolution de la villa en fonction des rapports de propriété et d’occupation de l..