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An automatic method for edge detection on biological images (otolith images) using a multi-agent system is presented. One of the major problems encountered during an automatic contour detection is the lack of structure continuity perception. In this paper we present a new approach to perceive continuity based on a 2D reconstruction of closed contours using(More)
In this article, we present a parallel image processing system based on the concept of reactive agents. Our system lies in the oRis language, which allows to describe ÿnely and simply the agents' behaviors to detect image features. We also present a method of segmentation using a multi-agent system, and two biological applications made with oRis. The(More)
The advent of the computer and computer science, and in particular virtual reality, offers new experiment possibilities with numerical simulations and introduces a new type of investigation for the complex systems study: the in virtuo experiment. This work lies on the framework of multi-agent systems. We propose a generic model for systems biology based on(More)
In this paper we present an algorithm for the detection of fish otolith growth rings based on a graph construction method. The identification of growth rings, for age estimation, is routinely achieved in fishery laboratories by human readers. One of the major problem encountered during an automatic image processing is the lack of ring continuity perception.(More)
In the context of biological complex systems multi-agent simulation, we present an interaction-agentmodel for reaction-diffusion problems that enables interaction with the simulation during the execution, and we establish a mathematical validation for our model. We use two types of interaction-agents: on one hand, in a chemical reactor with no spatial(More)
—Multi Interaction Systems are dedicated to real-time interactive simulations. They are based on chaotic and asynchronous scheduling of autonomous processes, in which physical or biological phenomena involved in the system are desynchronized. This allows interactivity, especially the capability to add or remove phenomena in the course of a simulation. This(More)
  • Vincent Rodin, Valéry Raulet, Alexis Nédélec
  • 2000
This paper introduces a Distributed Virtual Realit yplatform based on oRis, our dynamic and interpreted multi-agent language. This platform, called ARéViDis, has been designed for collaborative interactiv e protot yping. During an ARéViDis session, the dynamic properties of oRis allow the addition, modification or destruction of virtual agen ts in(More)
The Cellular Potts Model (CPM) is a cellular automaton (CA) allowing to model the morphogenesis of living cells. It characterizes a cell by its volume, surface and type. The CPM has already been used to simulate several models of cell self-organization. However, the cell shape is under-constraint i.e. it does not implies a unique shape. We propose a(More)