Khaled Jerbi

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In this paper, we present Orcc, an open-source development environment that aims at enhancing multimedia development by offering all the advantages of dataflow programming: flexibility, portability and scalability. To do so, Orcc embeds two rich eclipse-based editors that provide an easy writing of dataflow applications, a simulator that allows quick(More)
Décoder la cinématique d’un mouvement de la main à partir d’enregistrements MEG et EEG: des interfaces cerveau-machine à la réhabilitation motrice K. Jerbi a,∗, J.R. Vidal a, J. Mattout a, E. Maby a, F. Lecaignard b, T. Ossandon a, C.M. Hamamé a, S.S. Dalal a,b, R. Bouet a, J.-P. Lachaux a, R.M. Leahy c, S. Baillet d, L. Garnero e, C. Delpuech a,b, O.(More)
Implementing an algorithm to hardware platforms is generally not an easy task. The algorithm, typically described in a high-level specification language, must be translated to a low-level HDL language. The difference between models of computation (sequential versus fine-grained parallel) limits the efficiency of automatic translation. On the other hand,(More)
With the emergence of the High Efficiency Video Coding (HEVC) standard, a dataflow description of the decoder part was developed as part of the MPEGB standard. This dataflow description presented modest framerate results which led us to propose methodologies to improve the performance. In this paper, we introduce architectural improvements by exposing more(More)
Implementing an algorithm to hardware platforms is generally not an easy task. The algorithm, typically described in a high-level specification language, must be translated to a low-level HDL language. The difference between models of computation (sequential versus fine-grained parallel) limits the efficiency of automatic translation. On the other hand,(More)
In order to reconcile the advantages of the classical dipole model and minimum norm imaging techniques, higherorder parametric source models based on multipolar expansions of the source have been suggested. We evaluate the ability of dipolar and multipolar MEG source estimation frameworks to localize spatially extended patches of cortical activity. The(More)
Data process algorithms are increasing in complexity especially for image and video coding. Therefore, hardware development using directly hardware description languages (HDL) such as VHDL or Verilog is a difficult task. Current research axes in this context are introducing new methodologies to automate the generation of such descriptions. In our work we(More)
The increasing complexity of image codecs and the time to market requires a high level design. Caltrop Actor Language (CAL) is a domain-specific language that provides useful abstractions for dataflow programming with actor. It has been chosen by the ISO/IEC standardization organization in the new MPEG standard called Reconfigurable Video Coding. This(More)
With the standardization of the new High Efficiency Video Coding (HEVC) compression algorithm, a dataflow specification of the HEVC decoding process is also available as part of the standard. This paper presents methodologies to improve and optimize the performance of implementations derived by the dataflow specification. Regarding the architectural aspect(More)
In electrical impedance tomography (EIT) two-dimensional models continue to be applied despite their known inability to provide correct reconstruction. In this paper, a reconstruction algorithm that assumes a translationally invariant conductivity distribution is described. A more precise forward solver is obtained by taking off-slice currents into(More)