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In this paper we describe a MPEG-4 AFX compliant Skin&Bone based animation technique applied on a novel surface representation method, called MESHGRID, which is characterized by a connectivity-description defined in terms of a regular 3D grid of points, i.e. the reference-grid. The approach is based on deforming the regular reference-grid in order to obtain(More)
In this paper, we propose an authoring tool referred to as ICCT (Interactive Content Creating Tool). The tool serves to easily generate as well as dynamically control a multimedia and interactive MPEG-4 content represented as a hierarchical scene graph. In the parametric mode of ICCT, scene-designer – using a user friendly interface for setting properties(More)
Most current multi-player 3D games can only be played on dedicated platforms, requiring specifically designed content and communication over a predefined network. To overcome these limitations, the OLGA (On-Line GAming) consortium has devised a framework to develop real distributive, multi-player 3D games. Scalability at the level of content, platforms and(More)
The online recommendations are a popular presence in the Web sites world due to their potential to increase the customersý satisfaction. The ability to represent epistemic information about the clientsý beliefs is important to understand their needs. This paper presents a recommender system based on reinforcement learning. The system represents(More)
Representing what an intelligent agent knows or believes can be an important feature for an entity that acts in a collaborative environment. Epistemic logic programs are a clear way to reason about what an intelligent agent knows or believes, but the complexity of the reasoning is exponential. The paper presents a new kind of logic programs, the logic(More)
The efficiency of the H.264/AVC video coding standard (the latest in the MPEG family) can be further improved by advancing new prediction key-techniques. However, generally these techniques also lead to an extremely high complexity encoding process. As a solution to this problem, we focused on a fast technique to avoid the exhaustive search on the numerous(More)
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