Anass Mansouri

Anass Mansouri
National School of Applied Sciences, Sidi Mohamed Ben Abdellah University

Professor

About

58
Publications
12,646
Reads
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252
Citations
Citations since 2017
40 Research Items
219 Citations
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20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
Introduction
Anas Mansouri is a Full Professor in National School of Applied Sciences - USMBA of Fez. His major research interests include VLSI and Embedded System and Architectural Design, intelligent system, video and image processing, as well as Software/Hardware design and optimization.

Publications

Publications (58)
Article
Full-text available
Quadrotor unmanned aerial vehicles are increasingly explored due to their potential applications in many daily activities, including surveillance, cinematography, product delivery, and so on. Designing a flight control system for such a vehicle is very challenging because of its nonlinear dynamics and its sensitivity to the influence of disturbance...
Article
Full-text available
In this paper, a robust flight control system is proposed for an autonomous quadrotor to quickly and accurately achieve the targeted trajectories. A novel supertwisting nonsingular terminal sliding mode control (STNTSMC) has been developed to ensure that the tracking errors vanish in a short finite-time. A nonlinear disturbance observer (DO) is inc...
Conference Paper
Accurate segmentation of blood vessels can make an important and effective contribution to the identification and diagnosis of ocular diseases such as diabetic retinopathy, glaucoma, and hypertension. Contrast enhancement is an essential component of any retinal blood vessel segmentation process. The consistency of contrast within an image will def...
Chapter
The worldwide spread of COVID-19 pandemic creates an urgent need for research and development of safe and efficient solutions for early COVID-19 detection. In this paper, an intelligent, reliable, and low-cost system detecting the main symptoms of COVID-19 disease (fever, cough, and breathing difficulties) is proposed. This system applies the princ...
Article
Full-text available
The informed dynamic scheduling (IDS) strategies for the low-density parity check (LDPC) decoding have shown superior performance in error correction and convergence speed, particularly those based on reliability measures and residual belief propagation (RBP). However, the search for the most unreliable variable nodes and the residual precomputatio...
Article
Full-text available
span lang="EN-US">For low density parity check (LDPC) decoding, hard-decision algorithms are sometimes more suitable than the soft-decision ones. Particularly in the high throughput and high speed applications. However, there exists a considerable gap in performances between these two classes of algorithms in favor of soft-decision algorithms. In o...
Chapter
Stereo-vision is the most widely used technique in the development of environmental perception systems for intelligent transportation. The main requirement for the application of stereo vision on a vehicle is the processing time which must be very fast for autonomous driving in real time, whereas the computation of the correspondence of the images...
Chapter
This paper proposes a robust Adaptive Fast Terminal Sliding Mode Control (AFTSMC) for the quadrotor UAV in the presence of external perturbations. First, the quadrotor position and attitude dynamics are obtained using the Newton–Euler principle, then the closed-loop stability of the suggested controller is proved by the Lyapunov theorem. The parame...
Article
Full-text available
This paper presents a robust adaptive nonlinear controller for a flying machine represented by a quadrotor UAV (Unmanned Aerial Vehicle) in the presence of parasitic dynamics. A hybrid control strategy is used to steer the quadrotor behavior and an online adaptive methodology is introduced to improve the robustness of the adopted control technique...
Article
Statistical analysis of High Efficiency Video Coding (HEVC) encoder reveals that in the motion compensation block, the interpolation filter consumes more than 30% in the encoder time in comparison with other blocks. In this paper, we start with an optimized hardware implementation of the interpolation filter on field‐programmable gate array (FPGA)...
Article
The process of phosphate extraction can significantly benefit from the advances in spectral analysis and Artificial Intelligence to reduce the cost of the drilling operation. The ambiguities caused by the apparent similarities between different layers and by the existing mineralogical alterations complexify the delineation of phosphate layers with...
Chapter
In the autonomous vehicle, an image taken by the vehicle can’t be exposed properly due to vehicle movements and road constraints. Fortunately, an efficient and accurate system of multiple exposure fusion technique for creating images of high dynamic-range (HDR image) has come to solve this problem and provide a technical average to recover the lost...
Chapter
This paper presents the development of a quadrotor 3D-Model based on a new approach integrating both the flight controller and the quadrotor CAD-model (Computer-aided design). The quadrotor design is performed using CAD modelling environment, then imported to MATLAB Simscape for the design of the control scheme based on the PID (Proportional-Integr...
Chapter
Implementation of Low Density Parity Check (LDPC) decoders using conventional algorithms such as LLR BP or Min-Sum requires large amount of memory resources for storing the parity check matrix. This paper presents a soft implementation of irregular LDPC decoding for Wimax application, which achieve better BER performance and faster convergence with...
Article
Full-text available
New and stronger video compression standard was developed during the last years, called H.265/HEVC (High Efficiency Video Coding). This standard has undergone several improvements compared to H.264/AVC (Advanced Video Coding). In intra prediction block, 33 directional intra prediction modes were included in H.265 to have an efficient coding instead...
Conference Paper
Full-text available
The performances of the flight controller are quantified by means of three aspects, the ability to stabilize the quadrotor at the prescribed set-point, the accuracy to track with high precision the imposed path, and the robustness against external unknown disturbances. In order to satisfy the desired performances, a Robust Adaptive Sliding Mode Con...
Article
Full-text available
p>High resolution 4K and 8K are becoming the more used in video applications. Those resolutions are well supported in the new HEVC standard. Thus, embedded solutions such as development of dedicated ystems-On-Chips (SOC) to accelerate video processing on one chip instead of only software solutions are commendable. This paper proposes a novel parall...
Conference Paper
Full-text available
Quadrotor is an inherently nonlinear, coupled and unstable system which require an efficient controller to perform accurate tracking without losing the target trajectory. This paper concerns the development of an optimal backstepping controller (OBS) for the quadrotor attitude. A mathematical modeling for the quadrotor dynamics was derived by takin...
Article
Full-text available
span lang="EN-US">In this paper, we propose a new parallel hardware architecture for the mode decision algorithm, that it is based on the Sum Absolute of the Difference (SAD) for compute the motion estimation, which is the most critical algorithm in the recent video encoding standard HEVC. In fact, this standard introduced new large variable block...
Conference Paper
The choice of color representation can have distinguishable perceptual differences in the subject image which raises the following question: To what extent color representation can affect image processing results? In this paper, we study the effect of the RGB and HSV color representations on the segmentation result of the famous seeded region growi...
Conference Paper
The Belief Propagation (BP) algorithm is known as the most efficient algorithm in terms of convergence speed. But this algorithm has a very high level of computational complexity. The Min Sum Algorithm (MSA) permits to reduce this computational complexity but with some performances degradations. In this paper we recommend a new approach with more s...
Chapter
Nowadays, we are talking more and more about insecurity in various sectors as well as the computer techniques to be implemented to counter this trend: access control to computers, e-commerce, banking, etc. There are two traditional ways of identifying an individual. The first method is a knowledge-based method. It is based on the knowledge of an in...
Article
Background Real-time object detection has been attracting much attention recently due the increasing market need of such systems. Therefore, different detection algorithms and techniques have been evaluated to create a reliable detection system. The main challenge to implement a realtime reliable detection system relies on the algorithm training ph...
Chapter
In this paper we deal with the problem of the implementation of the simplified iterative decoding algorithms of Low Density Parity Check codes (LDPC). These algorithms correspond to a simplified version of the belief propagation algorithm (BP) in the logarithmic domain. Knowing that the Self Adjustable Offset Min Sum Algorithm (SAOMSA) algorithm al...
Chapter
It could be argued that flight simulation is the most pervasive and successful area within the simulation arena. Within simulators it is possible to deal with emergency situations and gain familiarity with new aircraft types, especially the quadrotor, which is one of the most active research topics in rotary wing unmanned aerial vehicles due to its...
Conference Paper
In this paper we deal with the problem of the implementation of the simplified iterative decoding algorithms of Low Density Parity Check codes (LDPC). These algorithms correspond to a simplified version of the belief propagation algorithm (BP) in the logarithmic domain. Knowing that the Self Adjustable Offset Min Sum Algorithm (SAOMSA) algorithm al...
Conference Paper
In the near future, the high resolution 4K and 8K will become the more used in video applications. This resolution is well supported in the new HEVC standard. This paper proposes a novel parallel and high efficient hardware accelerator for the intra prediction block. This accelerator achieves a high speed treatment due to pipelined processing units...
Conference Paper
Currently, High Efficiency Video Coding (HEVC), is the new video compression standard published since 2013. The intention of HEVC is to optimize the coding efficiency. Then in order to achieve a high quality material and/or software implementation of this new standard, it is first necessary to analyze and to understand its complexity and its major...
Conference Paper
Full-text available
This paper represents a literature review of research works concerning the reconstruction of forms of buried objects in an homogeneous soil, applied for the reconstruction of forms of underground cavities. First, we will set modeling as integral function, of the nonlinear inverse problem to solve. In general, this problem is solved through a regula...
Article
Full-text available
Object detection has been attracting much interest due to the wide spectrum of applications that use it. Object detection technology has been driven by an increasing processing power available in software and hardware. In this work we present a developed application for multiple objects detection based on OpenCV libraries. The complexity-related as...
Article
Full-text available
Object detection has been attracting much interest due to the wide spectrum of applications that use it. It has been driven by an increasing processing power available in software and hardware platforms. In this work we present a developed application for multiple objects detection based on OpenCV libraries. The complexity-related aspects that were...
Conference Paper
Mobil Worldwide Interoperability for Microwave Access (WiMAX) is a new wireless technology that provides higher throughput, over long distances, even with higher mobility involved. With the increasing demands for high data rate wireless with Quasi Error Free (QEF) reception conditions, the use of a powerful Forward Error Correction (FEC) schemes be...
Article
A new PieceWiseLinear (PWL) function is proposed for the decoding of the Low-Density-Parity-Check (LDPC) code with the Self Adjustable Offset Min-Sum (SAOMS) algorithm. Avoiding the use of the non-linear function f(x) = ln(1+e^−|x|) in the adjustable offset factor, this linear approximation greatly simplifies the hardware implementation with a littl...
Conference Paper
A Variable Node Processing Unit (VNPU) and a Check Node Processing Unit (CNPU) are designed in order to be used in Low Density Parity Check (LDPC) decoding by the Min-Sum Algorithm (MSA). The designed blocks are fully parallel and flexible to be used for different block length when a regular (3, 6) LDPC codes are required. The proposed VNPU and CNP...
Article
In this paper we propose a hardware implementation of a regular (3,6) LDPC decoder. Two processing units corresponding respectively to the variable and Check Node are designed in order to be used in Low Density Parity Check (LDPC) decoding by the Min-Sum Algorithm (MSA). These Units are fully parallel and flexible to be used for different block len...
Article
A Variable Node Processing Unit (VNPU) and a Check Node Processing Unit (CNPU) are designed in order to be used in Low Density Parity Check (LDPC) decoding by the Min-Sum Algorithm (MSA). The designed blocks are fully parallel and flexible to be used for different block length when a regular (3, 6) LDPC codes are required. The proposed VNPU and CNP...
Article
Full-text available
Embedded block coding with optimized truncation (EBCOT) is an important feature of the latest digital still-image compression standard, JPEG2000; however, it consumes more than 50% of the computation time in the compression process. In this paper, we propose a new high speed VLSI implementation of the EBCOT algorithm. The main concept of the propos...
Conference Paper
The second generation digital video broadcasting DVB-S2 standard uses a powerful Forward Error Correction LDPC (Low Density Parity Check). The FEC system present excellent performance in the presence of high levels of noise and interference. In this paper, the encoding and decoding techniques are reviewed for block size of 64800 bits. The decoder d...
Conference Paper
In this paper, a decoding technique for the concatenated codes based on the Bose-Chaudhuri-Hocquenghem code (BCH) and the low density parity check (LDPC) is proposed. It is based on the berlekamp-massey and sum-product algorithms. The output values delivered by the sum-product algorithm, after a fixed number of iterations, are used as input values...
Article
Full-text available
This paper presents an efficient VLSI architecture of a high speed, low power 2-D Discrete Wavelet Transform computing. The proposed architecture, based on new and fast lifting scheme approach for (9, 7) filter in DWT, reduces the hardware complexity and memory accesses. Moreover, it has the ability of performing progressive computations by minimiz...

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