This paper describes a novel technique to extract elementary linear elements from multiple views, often called edgels, that are 3D points with tangent direction. Techniques based on stereopair feature, edgel or contour, matching have been intensively developed in the 80s. The relatively poor quality of images used at the time and the ill-posed stereo context contributed to focus the research ar...

Up to now, the production of the cold is undertaking mainly by the classical way of compression refrigerator cycle. The cycle need an electrical power or mechanics expense for the training of the compressor and the C.F.C for their functioning. Most of the C.F.C impoverish the layer of ozone and participate with a considerable manner, to the increase of the sere effect, then to climatic changes....

The main subject of this work is the rigid registration of surfaces dedicated to VirtualScope, aper-operative guiding system designed for oral implants surgery.It is based on a purely statistical approach. We first show how to compute and maximize a likelihood,based on a model of the data noise, for the landmarks registration problem. This approach justifies theuse of the IC...

The last years, there has been a great interest in detecting overlapping communities in complex networks, which is understood as dense groups of nodes featuring a low outbound density. To date, most methods used to uncover overlapping communities stem from the field of disjoint community detection by attempting to decompose the whole network into several possibly overlapping groups of nodes. In...

This paper presents detailed analysis and modelisation of the star HD17051 (alias ι Hor), which appears as a specially interesting case among exoplanet host stars. As most of these stars, ι Hor presents a metallicity excess which has been measured by various observers who give different results, ranging from [Fe/H] = 0.11 to 0.26, associated with different atmospheric parameters. Meanwhile the ...

Classical Decision Theory has been widely used in multi-agent systems, but are not representative of decision-making in real conditions. So, we built an architecture based on several cognitive psychological theories (e.g. Simon’s decision theory, Tversky’s model of elimination by aspect, etc.) to take human bounded rationality into account. We adopt an intermediate-level of cognitive modelisati...

The last years, there has been a great interest in detecting overlapping communities in complex networks, which is understood as dense groups of nodes featuring a low outbound density. To date, most methods used to uncover overlapping communities stem from the field of disjoint community detection by attempting to decompose the whole network into several possibly overlapping groups of nodes. In...

We present a name-passing calculus that can be regarded as a simpli ed calculus equipped with a cryptographic table. The latter is a data structure representing the relationships among names. We apply the calculus to the modelling and veri cation of secrecy and authenticity properties in cryptographic protocols relying on symmetric shared keys. Following classical approaches [8], we formulate t...

Since 195D many studies have been devoted to physical and chemical trans-Formations in plasmas. In this paper we do not propose to make an exhaustive overview but to underline the main development points oF plasma chemistry. First after a brie-F historical review, we present the plasma chemical reactors and describe the difFerent types oF plasma generators. We discuss then oF the two main param...

The formulation of mathematical models for crowd dynamics is one current challenge in many fields of applied sciences. It involves the modelisation of the complex behavior of a large number of individuals. In particular, the difficulty lays in describing emerging collective behaviors by means of a relatively small number of local interaction rules between individuals in a crowd. Clearly, the in...