France Telecom

Envivio, Inc

Orange

Renaud Cazoulat

Eric Deniau

Valérie Ledunois

Vincent Roussillat

A method is provided for transmission, by a server in a communication network, of a multimedia message, which includes a video sequence, to a remote terminal. The method includes detecting the video sequence in the message by the server, wherein the method includes the following additional steps: coding by the server of the video sequence in a scalable stream including a base layer and one or more refinement layers, when the video sequence is not already coded in such a stream, storage of at least one of the refinement layers in a storage server, and sending the base layer and of a link to recover the at least one duly stored refinement layer to the remote terminal.

Method of transmitting a video sequence to a remote terminal

A method and system for rendering mixed media at a presentation workstation in response to a mixed media stream, in which the amount of computation is minimized. A tree structure includes nodes, each of which might point to sub-trees, and each of which designates a geometric object, a transformation to be applied to a geometric object, or a time-varying presentation. A scene includes nodes for each element in the scene. Depending from these would be nodes describing aspects of those elements, such as their texture and shape. A root node join the descriptions of each of the objects in the scene. Optimizing the amount of computation includes selecting nodes in the tree and calculating how to render each sub-tree. When possible, rendering information is calculated for only those portions of objects that will ultimately be shown to the user.

Growing community of inventors

Rennes, France

Renaud Cazoulat