Patterns can be defined as knowledge artifacts, providing a compact and semantically rich representation of a huge quantity of heterogeneous raw data. Due to the specific characteristics of patterns, ad hoc systems are required for pattern management, in order to model, store, retrieve, and manipulate patterns in an efficient and effective way. Pattern management historically concerned the defi...

Dermoscopy is a suitable diagnostic technique for biology observation of pigmented skin lesions used in dermatology. Nowdays there is great interest in the prospects for methods of automatic image analysis for dermoscopy image, it Provide quantitative information about the lesion, which can be of link the doctor, and as a standalone early warning tool. This paper presents a good method of melan...

There are nowdays various e-business applications, such as sealedbid auctions and electronic voting, that require time-delayed decryption of encrypted data. The literature offers at least three main categories of protocols that provide such timed-release encryption (TRE). They rely either on forcing the recipient of a message to solve some time-consuming, non-paralellizable problem before being...

State of the art of the high level feature detectors, as violent scene detectors, are supervised systems. The aim of our proposition is to show that simple non supervised confidence function derived from straightforward features can perform well compared to nowdays supervised systems for this kind of hard task. Then, we develop a violent event detector independent of the kind of movies based on...

Dose distribution evaluation in oncological radiotherapy treatments is an outstanding problem that requires sophisticated computing technologies to optimize the clinical results (i.e. increase the dose to the tumour and reduce the dose to the healthy tissues). Nowdays, dose calculation algorithms based on the Monte Carlo method are generally regarded as the most accurate tools for radiotherapy....

Human small heat shock proteins are molecular chaperones that regulate fundamental cellular processes in normal unstressed cells as well as in many cancer cells where they are over-expressed. These proteins are characterized by cell physiology dependent changes in their oligomerization and phosphorylation status. These structural changes allow them to interact with many different client protein...

The orthogonal frequency division multiplexing (OFDM) is generally used in nowdays high data rate transmission. But, OFDM suffers from interchannel interference (ICI) in rapid variations of doubly selective fading channels even though it is strong at narrow band noise and intersymbol interference (ISI). So, the ICI cancellation should be done at receiver effectively. However, channel estimation...

Emmer wheat, Triticum dicoccum SCHUEBL, is an old variety of cereals which has been traditionally grown in aride areas. Nowdays, it is mainly grown in Italy, Spain, Turkey, Austria and in the Czech republic. This article deals with a study of quality parametres and selected economic parametres of 6 varieties coming from the genetic resources of emmer wheat. High crude protein content in grain w...

F ield programmable gate array (FPGA) components are widely used nowdays to implement various algorithms, such as digital filtering, in real time. The emergence of dynamically reconfigurable FPGAs made it possible to reduce the number of necessary resources to carry out an image-processing task (tasks chain). In this article, an image-processing application, image rotation, that exploits the FP...