Innovative applications of image processing techniques for analysis of intravascular ultrasound images are presented. This work has two main objectives: (1) to detect the luminal contour which is necessary to assess the degree of vessel stenosis, and (2) to detect presence of calcification, which is an important information for definition of the intervention method. These problems were addresse...

In problems such as image segmentation and recognition, the connectivity of target objects is a key feature. In the mathematical morphology framework, connected filters were derived from the classical connectivity theory but do not take into account the imperfections that can affect the image formation. The aim of this paper is twofold: (i) introduce a new class of connectivity for fuzzy object...

We show in this paper that mathematical morphology provides a unified and consistent framework to express different types of spatial relationships and to answer different questions about them, with good properties. We show then how to use these fuzzy relationships in modelbased pattern recognition and spatial reasoning under imprecision. Two examples are presented, one where recognition of face...

The principal aim of this project is to set up new mathematical models together with efficient associated algorithms that allow the incorporation of some elements of the Formal Concept Analysis (FCA), of the Mathematical Morphology (MM), of the Aggregation Functions Theory (AFT) and of the Fuzzy Relation Theory (FRT) in the following phases included in the Knowledge Discovery (KD) processes: da...

Membrane fusion is required to establish the morphology and cellular distribution of the mitochondrial compartment. In Drosophila, mutations in the fuzzy onions (fzo) GTPase block a developmentally regulated mitochondrial fusion event during spermatogenesis. Here we report that the yeast orthologue of fuzzy onions, Fzo1p, plays a direct and conserved role in mitochondrial fusion. A conditional ...

The motor unit action potentials (MUPs) in an electromyographic (EMG) signal provide a significant source of information for the assessment of neuromuscular disorders. Since recently there were different types of developments in computer-aided EMG equipment, different methodologies in the time domain and frequency domain has been followed for quantitative analysis of EMG signals. In this study,...

In contrast to the perceptual capability of artificial systems, the biological perception of spatial patterns is a continuous cognitive process. In particular, the visual system of primates has a space-variant nature where the resolution is high on the fovea and decreases continuously to the periphery of the visual field. Moreover, the pattern perception and recognition may change, also continu...

This paper aims at providing an overview of the use mathematical morphology, in its algebraic setting, several fields artificial intelligence (AI). Three domains AI will be covered. In first domain, morphology operators expressed some logics (propositional, modal, description logics) to answer typical questions knowledge representation and reasoning, such as revision, fusion, explanatory relati...

in this paper we introduce the notions of fuzzy transposition hypergroupsand fuzzy regular relations and investigate their basic properties.we also study fuzzy quotient hypergroups of a fuzzy transposition hypergroup.

In joining defects on semiconductor wafer maps into clusters, it is common for defects caused by different sources to overlap. Simple morphological image processing tends to either join too many unrelated defects together or not enough together. Expert semiconductor fabrication engineers have demonstrated that they can easily group clusters of defects from a common manufacturing problem source ...