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In this paper, we compare classification results, of six facial expressions including joy, surprise, sadness, anger, disgust, and fear, relying on two different methods of distance computing between 121 landmark points on the face. Facial features were computed using L1 norm (Manhattan distance) in the first case and L2 norm (Euclidean distance) in the second case. Training and test data have been...
nowadays, mobile development for each different platform has become a critical challenge, due to the fact that it is still time and budget consuming. The cross-platform approaches are emerging as an alternative solution that many companies are starting to embrace, since it allows the development of mobile applications once for all platforms. The aim of our work is to give an exhaustive survey of cross...
The aim of this paper is to present a general description about the method called Extremum Seeking Control (ESC), and its applications in the nonlinear systems, which have an unknown dynamics. The system we are interested in is the photovoltaic system. This technique presents a solution on real time optimization control problems.
In this paper an automatic system of performance review has been proposed for facial expression recognition issue. The system is essentially based on histograms of oriented gradient features and multi layer feed forward neural network. The performance was evaluated on three different dataset by varying two parameters: face resolution and color space of images. Results demonstrate that good recognition...
In this paper we built an automatic system for performance reviews of a new approach of facial expression recognition FER which is essentially based on Histogram of Oriented Gradient and Normalized Cross Correlation. The performance was evaluated by varying two parameters: face resolution and colour space of images. Results show that good recognition can be attained using low resolution, in particular...
Nowadays, the use of mobile technologies is rising at an alarming scale. Due to this, more powerful and efficient mobile applications are needed in order to keep up with this trend. Since there exists several mobile platforms (iOS, Android, etc…), each one with different SDK (Software Development Kit) tools and specific development capabilities, application development becomes more complicated and...
The paper presents two systems to recognize five facial expressions (anger, surprise, joy, sadness and neutral) and gives a performance review on them. Both systems are developed on the same facial features extraction process which is histograms of oriented gradients extraction. Vectors of facial features are classified by the systems using the following proposed methods: template matching method...
In this paper, we present a design and implementation of an energy management system for stand-alone micro grid supplied by multi-sources. This system which controls several mixed sources of energy such as Photovoltaic panel, wind turbine, diesel generator and Battery pack equilibrates efficiently the production to the load (consumption). The actual system design is based on a microcontroller board...
In this work, we propose a modified cascaded transformer multilevel inverter which minimizes the number of switching components. A comparison is made between the traditional cascaded transformer multilevel inverter and the proposed cascaded based on some criteria such as the form and amplitude of output voltage, the structure of power circuits for each inverter and the facilities of implementation...
This work is part of developing a new type of radars which is based on stereoscopic effect obtained by using two cameras. The main work is to develop an algorithm for speed estimation. We begin by detecting motions and tracking vehicles in order to identify the vehicle in the next frame. Stereoscopic pictures allow us to calculate the distance from the cameras to the chosen object within the picture...
Maximum Power Point Tracking algorithms (MPPT) are used to track maximum power, a DC-DC Boost converter is used to obtain the impedance matching between the PV array and the load. Although a huge number of approaches have been proposed in literature, the methods based on the perturb and observe (P&O) technique are the most widely employed in commercial products. The reason lies in the fact that...
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