Tarek Frikha

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This Embeddd systems use emerges in the electronic field. Many applications have been embedded such as network, image processing, signal processing ... The emergency of multimedia applications particularly in mobile embedded systems puts new challenges for the design of such systems. The major difficulty is the embedded system’s reduced computational(More)
In this paper, we present a dynamically reconfigurable (DR) architecture for a 3D image synthesis application. We address different issues not covered in similar works especially the use of low complex and cost FPGA and the simultaneous support of different constraints like the energy consumption and the real time constraint. The proposed system uses an(More)
Developing multimedia embedded applications continues to flourish. In fact, a biometric facial recognition system can be used not only on PCs abut also in embedded systems, it is a potential enhancer to meet security and surveillance needs. The analysis of facial recognition consists offoursteps: face analysis, face expressions’ recognition, missing(More)
The emergency of embedded systems puts new challenges for the design of different system in many fields. One of the embedded application's fields is the medical one. The major difficulty is the embedded system's reduced energy and computational resources that must be carefully used to execute complex application often in unpredictable environments. In this(More)
The study of the EEG inverse problem consists in active brain's source reconstruction. In this paper we review the localization error from this reconstruction using a new configuration of electrodes on the scalp. The suggested new configuration consists on studying each lobe separately. The objective is to minimize the localization error with a minimum(More)
The emergency of multimedia applications particularly in mobile embedded systems puts new challenges for the design of such systems. The major difficulty is the embedded system's reduced energy and computational resources that must be carefully used to execute complex application often in unpredictable environments. So the system architecture must be energy(More)
This paper concerns the problem of converting High Dynamic Range (HDR) images into Low Dynamic Range (LDR) images so as to display the mapped images on LDR display devices. A fast, effective and flexible tone mapping algorithm preserving visibility, contrast and impression of the HDR real-world scene is developed. It is based on the Stationary Wavelet(More)
This paper presents a brief description of ridglet transform, curvelet transform: the first and second generation, we detail the various areas where these transforms have proven their qualities and their contributions compared to the previous transformed. As case study of these transforms, smart identity cart application using smart watermarking techniques(More)
Virtual reality applications grow up nowadays. These applications are not only developed for the PCs but also for embedded systems such as game console, Smartphone, touchpad. The limited touchpad resources and network communication between touchpad need an adaptation to environment noises. To solve this type of problem, we'll test a 3D application(More)
Image recognition which is one large library of images is really an important topic in multimedia research. Several methods such as wavelet transform or raw pyramid transform methods are used in image recognition. Many other techniques which are based on statistical image’s analysis exist. These methods using statistics give interesting results without(More)