Signal and Image Processing, Signal Processing Algorithms and VLSI Implementation, FPGA Implementation and Designing
12
Scopus Publications
111
Scholar Citations
5
Scholar h-index
4
Scholar i10-index
Scopus Publications
Efficient real-time drone mapping with visual SLAM and Python Hussam Rostum, Omar M. Salih, József Vásárhelyi Pollack Periodica, 2026 This paper aims to develop an efficient real-time mapping workflow using a drone employing visual simultaneous localization and mapping technology, implemented using Python Programming. The control module is enhanced to guide the drone in exploring an unknown environment, enabling it to perform functionality like a LiDAR sensor but relying solely on its onboard camera to detect walls and features, and dynamically construct a map of the surrounding environment. The approach's accuracy and performance of the reconstructed map are evaluated and compared with the reference map generated using the ground truth. This work demonstrates the feasibility of using computer vision as an alternative to traditional sensing devices for real-time exploration of indoor and complex environments.
Efficient Architecture for Multi-Robot Visual SLAM Systems Omar M. Salih, József Vásárhelyi Proceedings of the 2025 26th International Carpathian Control Conference Iccc 2025, 2025 Visual Simultaneous Localization and Mapping (VS-LAM) is a crucial algorithm used in mobile robots to determine their position relative to the encirclement environment. In multi-robot architectures, mobile robots communicate with a base station or a centralized edge device. However, the computational complexity nature of the VSLAM algorithm, due to the processing of massive visual information for tracking and mapping, poses challenges for deploying the algorithm entirely on the mobile robot. To address these limitations, this paper introduces an efficient architecture that partitions the V-SLAM framework between mobile robots and a centralized edge. This approach complies with resource limitations and optimizes energy consumption while minimizing the robot’s size and weight. In addition, the paper proposes a communication module comprising an encoding and decoding framework to obtain effective data communication between the mobile robots and the edge device. The performance of the proposed system is evaluated and compared with a corresponding architecture that employs the baseline JPEG technique in terms of trajectory accuracy, data quality, and execution time.
Visual Data Compression Approaches for Edge-based ORB-VSLAM Systems Omar M. Salih, József Vásárhelyi Proceedings of the 2024 25th International Carpathian Control Conference Iccc 2024, 2024 Visual Simultaneous Localization And Mapping (VSLAM) is a technique that enables robots to localize and estimate their pose by reconstructing a map structure of the surrounding environment. However, VSLAM encounters significant computational loads, resource consumption, and bandwidth constraints. Due to these issues, offloading the entire VSLAM architecture onto a mobile device could be impractical. To reduce weight, lower energy consumption, and keep the size of mobile devices small, VSLAM can be efficiently deployed by offloading computationally intensive tasks to cloud platforms. This requires efficient visual data compression methods to reduce the data load, bandwidth, and latency. This paper proposes two implementation approaches for integrating visual data compression and decompression with ORB-VSLAM systems. The proposed systems are compared to counterpart JPEG-based systems, and the results show significant improvement for both approaches.
An Overview of Energies Problems in Robotic Systems József Vásárhelyi, Omar M. Salih, Hussam Mahmod Rostum, Rabab Benotsname Energies, 2023 Considering the current world trends, the most challenging issue industry is facing revolves around how to reduce the power consumption of electronic systems. Since the invention of computers, electrical energy consumption has increased dramatically; this is due to the emergence of new systems in industry. Systems like industrial robots and autonomous vehicles—including electric vehicles (EVs) and unmanned aerial vehicles (UAVs)—have had a great impact in making human life easier but have also led to higher energy consumption. At present, researchers and developers are actively seeking solutions and patents to optimize the energy consumption of the mentioned systems and generate savings, with the goal of reducing their environmental impact and improving their efficiency and effectiveness. From the literature review, papers related to energy optimization and energy consumption are considered vital, and a huge number of research publications and survey papers discuss it. This paper presents a systematic review of the classification and analysis of various methodologies and solutions that have been developed to enhance the energy performance of robotic systems, focusing on industrial robots, autonomous vehicles, and embedded systems. The aim of this research is to provide a reference point for the existing methods, techniques, and technologies that are available. It compares and evaluates different hardware and software methods related to industrial robots, autonomous vehicles, and embedded systems, highlighting the possible future perspectives in the field.
Second-Order Statistical Techniques for Enhancing Spectrum Sensing in Cognitive Radio Hussam M. Rostum, Omar M. Salih, Jozsef Vásárhelyi Proceedings of the 2023 24th International Carpathian Control Conference Iccc 2023, 2023 This study explores the use of cognitive radio as a solution to the problem of radio spectrum scarcity and ineffectiveness. The focus is on spectrum sensing, a critical aspect of cognitive radio with various algorithms. The research examines a spectrum sensing algorithm based on the cyclic prefix correlation coefficient in OFDM signals(Orthogonal Frequency Division Multiplexing). The detection threshold is determined using a constant false alarm rate and a method for minimizing the average total error probability. Additionally, a formula for normalized spectrum utilization for primary and secondary users is presented. The results of the simulation show improved performance of the detector through the use of an adaptive threshold, resulting in a 6 dB increase in the probability of detection at 0.6 compared to a fixed threshold. The normalized spectrum utilization improved by approximately 5% at SNR = -12 dB for a spectrum occupancy of 0.5 and by 25% at SNR = -20dB for a spectrum occupancy of 0.7.
Fast Joint Image Compression-Encryption Algorithm used for 3D Reconstruction Omar M. Salih, Hussam M. Rostum, József Vásárhelyi, Mohammed M. Siddeq Proceedings of the 2023 24th International Carpathian Control Conference Iccc 2023, 2023 This paper presents a JPEG-improved algorithm for compression and encryption of 2D structured light images applied in 3D reconstruction. The proposed method incorporates compression and encryption simultaneously to achieve a high compression ratio while adding security without affecting 3D reconstruction. The 2D structured light image is divided into 8×8 blocks, then DCT is applied for each block followed by an optimized JPEG-based quantization matrix. The resulting blocks are merged in a single matrix, and the DC coefficients in each column are subjected to first-order difference to reduce the Min-Max span for fast decoding. The decompression is accomplished reversely, and a fast sequential search method is proposed based on a conventional searching approach. The results showed achieving up to a 98% compression ratio of 2D structured light images while maintaining successful and accurate 3D reconstruction. Moreover, the execution time decreased significantly by (61%-80%).
Image compression for quality 3D reconstruction Omar M. Salih, Mohammed H. Rasheed, Mohammed M. Siddeq, Marcos A. Rodrigues Journal of King Saud University Computer and Information Sciences, 2022
Low energy consumption in manet network Periodicals of Engineering and Natural Sciences, 2020
RECENT SCHOLAR PUBLICATIONS
Efficient real-time drone mapping with visual SLAM and Python H Rostum, OM Salih, J Vásárhelyi Pollack Periodica, 606.2025. 01493 , 2026 2026
Peremhálózat alapú VSLAM keretrendszer erőforrás-korlátozott platformokhoz: An Edge Assisted VSLAM Framework for Resource Constraint Platforms V József, SM Omar Energetika-Elektrotechnika–Számítástechnika és Oktatás Multi-konferencia … , 2025 2025
End-to-End Multi-Level Encoding Methods of Visual Data Compression for Robust Monocular Visual ORB-SLAM OM Salih, J Vásárhelyi Acta Polytechnica Hungarica 22 (5), 225-244 , 2025 2025 Citations: 1
Efficient Architecture for Multi-Robot Visual SLAM Systems OM Salih, J Vásárhelyi 2025 26th International Carpathian Control Conference (ICCC), 1-6 , 2025 2025
A novel method to improve the efficiency and performance of cloud-based visual simultaneous localization and mapping OM Salih, H Rostum, J Vásárhelyi Engineering Proceedings 79 (1), 78 , 2024 2024 Citations: 2
Visual data compression approaches for edge-based ORB-VSLAM systems OM Salih, J Vásárhelyi 2024 25th International Carpathian Control Conference (ICCC), 1-6 , 2024 2024 Citations: 5
VISUAL DATA COMPRESSION FOR MACHINE VISION APPLICATIONS OM Salih, J Vásárhelyi Doktoranduszok Fóruma, 133 , 2024 2024
FPGA implementation in mobile robot applications: State of the art review MR Hussam, MS Omar, H Noha Multidiszciplináris Tudományok 13 (2), 232-249 , 2023 2023 Citations: 4
An overview of energies problems in robotic systems J Vásárhelyi, OM Salih, HM Rostum, R Benotsname Energies 16 (24), 8060 , 2023 2023 Citations: 15
Quick sequential search algorithm used to decode high-frequency matrices MM Siddeq, MH Rasheed, OM Salih, M Rodrigues World Academy of Science, Engineering and Technology 17 (8), 180-187 , 2023 2023 Citations: 1
Second-order statistical techniques for enhancing spectrum sensing in cognitive radio HM Rostum, OM Salih, J Vásárhelyi 2023 24th international Carpathian control conference (ICCC), 382-387 , 2023 2023 Citations: 2
Fast Joint Image Compression-Encryption Algorithm used for 3D Reconstruction OM Salih, HM Rostum, J Vásárhelyi, MM Siddeq 2023 24th International Carpathian Control Conference (ICCC), 400-405 , 2023 2023 Citations: 4
Quick Sequential Search Algorithm Used to Decode High Frequency Matrices OM Salih International Journal of Electrical and Computer Engineering , 2023 2023
An Overview of Energies Problems in Control and Robotic Systems J Vásárhelyi, OM Salih, HM Rostum, R Benotsname, AA Bouzid Preprints , 2022 2022
Image compression for quality 3D reconstruction OM Salih, MH Rasheed, MM Siddeq, MA Rodrigues Journal of King Saud University-Computer and Information Sciences 34 (5 … , 2022 2022 Citations: 12
Quadtree partitioning scheme of color image based GK AL-Khafaji, MH Rasheed, OM Salih Periodicals of Engineering and Natural Sciences 9 (2), 1073-1085 , 2021 2021 Citations: 1
Joint image encryption and compression schemes based on hexa-coding MH Rasheed, OM Salih, MM Siddeq Periodicals of Engineering and Natural Sciences 9 (2), 569-580 , 2021 2021 Citations: 17
Image compression based on 2D Discrete Fourier Transform and matrix minimization algorithm MH Rasheed, OM Salih, MM Siddeq, MA Rodrigues Array 6, 100024 , 2020 2020 Citations: 43
Low energy consumption in manet network MA Mustafa, MH Rasheed, OM Salih Periodicals of Engineering and Natural Sciences (PEN) 8 (2), 904-915 , 2020 2020 Citations: 3
A Low Complexity Slm Scheme for Papr Reduction of OFDM Signals OM Salih, AI Siddiq Diyala Journal of Engineering Sciences 10 (3), 63-74 , 2017 2017 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
Image compression based on 2D Discrete Fourier Transform and matrix minimization algorithm MH Rasheed, OM Salih, MM Siddeq, MA Rodrigues Array 6, 100024 , 2020 2020 Citations: 43
Joint image encryption and compression schemes based on hexa-coding MH Rasheed, OM Salih, MM Siddeq Periodicals of Engineering and Natural Sciences 9 (2), 569-580 , 2021 2021 Citations: 17
An overview of energies problems in robotic systems J Vásárhelyi, OM Salih, HM Rostum, R Benotsname Energies 16 (24), 8060 , 2023 2023 Citations: 15
Image compression for quality 3D reconstruction OM Salih, MH Rasheed, MM Siddeq, MA Rodrigues Journal of King Saud University-Computer and Information Sciences 34 (5 … , 2022 2022 Citations: 12
Visual data compression approaches for edge-based ORB-VSLAM systems OM Salih, J Vásárhelyi 2024 25th International Carpathian Control Conference (ICCC), 1-6 , 2024 2024 Citations: 5
FPGA implementation in mobile robot applications: State of the art review MR Hussam, MS Omar, H Noha Multidiszciplináris Tudományok 13 (2), 232-249 , 2023 2023 Citations: 4
Fast Joint Image Compression-Encryption Algorithm used for 3D Reconstruction OM Salih, HM Rostum, J Vásárhelyi, MM Siddeq 2023 24th International Carpathian Control Conference (ICCC), 400-405 , 2023 2023 Citations: 4
Low energy consumption in manet network MA Mustafa, MH Rasheed, OM Salih Periodicals of Engineering and Natural Sciences (PEN) 8 (2), 904-915 , 2020 2020 Citations: 3
A novel method to improve the efficiency and performance of cloud-based visual simultaneous localization and mapping OM Salih, H Rostum, J Vásárhelyi Engineering Proceedings 79 (1), 78 , 2024 2024 Citations: 2
Second-order statistical techniques for enhancing spectrum sensing in cognitive radio HM Rostum, OM Salih, J Vásárhelyi 2023 24th international Carpathian control conference (ICCC), 382-387 , 2023 2023 Citations: 2
End-to-End Multi-Level Encoding Methods of Visual Data Compression for Robust Monocular Visual ORB-SLAM OM Salih, J Vásárhelyi Acta Polytechnica Hungarica 22 (5), 225-244 , 2025 2025 Citations: 1
Quick sequential search algorithm used to decode high-frequency matrices MM Siddeq, MH Rasheed, OM Salih, M Rodrigues World Academy of Science, Engineering and Technology 17 (8), 180-187 , 2023 2023 Citations: 1
Quadtree partitioning scheme of color image based GK AL-Khafaji, MH Rasheed, OM Salih Periodicals of Engineering and Natural Sciences 9 (2), 1073-1085 , 2021 2021 Citations: 1
A Low Complexity Slm Scheme for Papr Reduction of OFDM Signals OM Salih, AI Siddiq Diyala Journal of Engineering Sciences 10 (3), 63-74 , 2017 2017 Citations: 1
Efficient real-time drone mapping with visual SLAM and Python H Rostum, OM Salih, J Vásárhelyi Pollack Periodica, 606.2025. 01493 , 2026 2026
Peremhálózat alapú VSLAM keretrendszer erőforrás-korlátozott platformokhoz: An Edge Assisted VSLAM Framework for Resource Constraint Platforms V József, SM Omar Energetika-Elektrotechnika–Számítástechnika és Oktatás Multi-konferencia … , 2025 2025
Efficient Architecture for Multi-Robot Visual SLAM Systems OM Salih, J Vásárhelyi 2025 26th International Carpathian Control Conference (ICCC), 1-6 , 2025 2025
VISUAL DATA COMPRESSION FOR MACHINE VISION APPLICATIONS OM Salih, J Vásárhelyi Doktoranduszok Fóruma, 133 , 2024 2024
Quick Sequential Search Algorithm Used to Decode High Frequency Matrices OM Salih International Journal of Electrical and Computer Engineering , 2023 2023
An Overview of Energies Problems in Control and Robotic Systems J Vásárhelyi, OM Salih, HM Rostum, R Benotsname, AA Bouzid Preprints , 2022 2022