Said Raghay

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The electrocardiogram (ECG) is a diagnostic tool that records the electrical activity of the heart, and depicts it as a series of graph-like tracings, or waves. Being able to interpret these details allows diagnosis of a wide range of heart problems. Fetal electrocardiogram (FECG) extraction has an important impact in medical diagnostics during the mother(More)
Abstract In this paper, we propose a new approach to Robust Super Resolution (RSR) based on elastic registration. Since registration is a crucial element that guarantees the success of Super Resolution (SR) algorithms, great care is recommended in the choose of the most convenient one. We suggest a new algorithm specified at low resolution images with small(More)
In recent years a new concept, called “mobile cloud computing” (MCC), has been put forward, it can build more powerful mobile cloud applications, and it is considered as one of the most highly discussed topics in terms of both academic community and computing industry. In this paper, we aim to understand why mobile computing chooses cloud(More)
Numerous efforts are currently under progress to enhance the safety and efficiency of vehicular traffic through intelligent transportation systems. In addition, the growing demand for access to data and information from human users on the go has created the need for advanced vehicle-to-vehicle and vehicle to roadside communication systems capable of high(More)
Mobile devices leave a huge number of digital traces that are collected as trajectories, describing the movement of its users or a path followed by any moving object in geographical space over some period of time. However, those mobile devices provide just raw trajectories (x, y, t), ignoring information about their related contextual data, these additional(More)
Mobile cloud computing (MCC) is the most promising cloud solution for the future mobile environment. It aims to integrate mobile devices with cloud computing, and provide to mobile users an online access to unlimited cloud resources. Furthermore, MCC has changed the concept of mobile devices from primitive gadget to full computers that accommodate work,(More)
Current information systems provide transparent access to multiple, distributed, autonomous and potentially redundant data sources based on a mediation architecture. Their users may not know the sources they questioned, nor their description and content. Consequently, their queries reflect no more a need that must be satisfied but an intention that must be(More)