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Ayman El Sayed A. Tawfik
- Associate Professor, HOD Electrical Engineering
- Ext: 6785
Dr. Ayman Tawfik is the Head of the Electrical and Computer Engineering Department at the College of Engineering and Information Technology, Ajman University. He holds a PhD in Electrical Engineering from the University of Victoria, Canada (1995), and both an MSc and BSc from Ain Shams University, Egypt (1989 and 1983, respectively). With over 30 years of experience in teaching a wide range of academic courses, Dr. Tawfik has extensive expertise in ABET accreditation and reaccreditation processes for electrical engineering programs. He has published numerous research papers in prestigious journals and conferences. Additionally, Dr. Tawfik has worked as a researcher for the Department of National Defence (DND) in Canada and as a consultant for Egetronic Company in Egypt. His research interests include Internet-of-Things (IoT), digital signal processing, digital image processing, VLSI signal processing, digital communication, and educational technology.
Education
- Ph.D. in Electrical Engineering, University of Victoria, Canada, November 1995.
- M.Sc. in Electrical Engineering, Ain Shams University, Cairo, Egypt, August 1989.
- B.Sc. (Hon.) in Electrical Engineering, Ain Shams University, Egypt, September 1983.
Ph.D. in Electrical Engineering, University of Victoria, Canada, November 1995.
M.Sc. in Electrical Engineering, Ain Shams University, Cairo, Egypt, August 1989.
B.Sc. (Hon.) in Electrical Engineering, Ain Shams University, Egypt, September 1983.
Experience
- Head, Department of Electrical and Computer Engineering, Ajman University, UAE, January 2017 - Present.
- Associate Professor, Department of Electrical Engineering, Ajman University, UAE, September 2006 – December 2016.
- Assistant Professor, Department of Electrical Engineering, Ajman University, UAE, September 2000 – August 2006.
- Consultant, Egetronic Company for Electronic Components, Egypt, March 1997 – August 2000.
- Assistant Professor, Department of Electrical Engineering, Ain Shams University, Egypt, March 1997 – August 2000.
- Associate Researcher, Technical University of Nova Scotia with DND, Nova Scotia, Canada, February 1996 – February 1997.
- Post-Doctoral Fellow, Department of Electrical & Computer Engineering, University of Victoria, Victoria, Canada, August 1995 – January 1996.
- Researcher and Assistant Teacher, Department of Electrical & Computer Engineering, University of Victoria, Victoria, Canada, May 1991 – July 1995.
- Assistant Lecturer, Department of Electrical Engineering, Ain Shams University, Egypt, September 1983 – April 1991.
Head, Department of Electrical and Computer Engineering, Ajman University, UAE, January 2017 - Present.
Associate Professor, Department of Electrical Engineering, Ajman University, UAE, September 2006 – December 2016.
Assistant Professor, Department of Electrical Engineering, Ajman University, UAE, September 2000 – August 2006.
Consultant, Egetronic Company for Electronic Components, Egypt, March 1997 – August 2000.
Assistant Professor, Department of Electrical Engineering, Ain Shams University, Egypt, March 1997 – August 2000.
Associate Researcher, Technical University of Nova Scotia with DND, Nova Scotia, Canada, February 1996 – February 1997.
Post-Doctoral Fellow, Department of Electrical & Computer Engineering, University of Victoria, Victoria, Canada, August 1995 – January 1996.
Researcher and Assistant Teacher, Department of Electrical & Computer Engineering, University of Victoria, Victoria, Canada, May 1991 – July 1995.
Assistant Lecturer, Department of Electrical Engineering, Ain Shams University, Egypt, September 1983 – April 1991.
Teaching Area
- Electrical Engineering/Communication: Signals & Systems, Principles of Communication, Digital Communication, Wireless Communication, Probability & Random Processes, Computer Networks & Switching.
- Electrical Engineering/Signal Processing: Digital Signal Processing, Digital Image Processing.
- Electrical Engineering/Control: Digital Control Systems, Fuzzy Logic & Neural Networks.
- Electrical Engineering/General: Electronic Devices I, Logic Design, VLSI, Communication Electronics, Electronic Measurements.
Electrical Engineering/Communication: Signals & Systems, Principles of Communication, Digital Communication, Wireless Communication, Probability & Random Processes, Computer Networks & Switching.
Electrical Engineering/Signal Processing: Digital Signal Processing, Digital Image Processing.
Electrical Engineering/Control: Digital Control Systems, Fuzzy Logic & Neural Networks.
Electrical Engineering/General: Electronic Devices I, Logic Design, VLSI, Communication Electronics, Electronic Measurements.
Research
- Internet-Of-Things (IOT)
- Digital Image Registration
- Digital Image Watermarking
- Adaptive Beamforming
- State-Space Digital Filter
- VLSI Signal Processing
- Educational Technology
Internet-Of-Things (IOT)
Digital Image Registration
Digital Image Watermarking
Adaptive Beamforming
State-Space Digital Filter
VLSI Signal Processing
Educational Technology
Publications
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JournalA. M. Redha, N. A. Mat Isa, and A. Tawfik, Acne Detection Based on Reconstructed Hyperspectral Images, J. IMaging, pp.1 - 15, Jul 2024
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JournalT. Awaad, M. Watheq Elkharashy, M. Taher, A. Tawfik, Detecting Cyber Attacks In-Vehicle Diagnostics using Intelligent Multistage Framework, MDPI Sensors, pp.1 - 12, Sep 2023
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JournalA. Kanellakis, A. Tawfik, Sufficient Criterion for Instability of 2-D Linear Discrete Systems, Franklin Open, Vol: 3, pp.1 - 5, Jun 2023
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JournalA. Kanellakis, A. Tawfik and P. Agathoklis, Inverse and Direct Solutions of the Discrete-time Lyapunov Equation with Systems Matrix in Companion Form, IEEE Access, pp.1 - 10, Dec 2021
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JournalA. Kanellakis, A. Tawfik and P. Agathoklis, “Stability Analysis of 2-D Discrete and Continuous State-Space Systems, IET Contorl Theory & Applications, pp.1 - 10, Nov 2021
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JournalM. Saeed Darweesh, Mostafa Adel, Ahmed Anwar, Omar Farag, Ahmed Kotb, Mohamed Adel, A. Tawfik, Early breast cancer diagnostics based on hierarchical machine learning classification for mammography images, Cogent Engineering, Vol: 8, Sep 2021, doi: 10.1080/23311916.2021.1968324
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JournalA. Kanellakis and A. Tawfik, A New Sufficient Criterion for the Stability of 2-D Discrete Systems, IEEE Access, Vol: 9, pp.70392 - 70395, May 2021, doi: 10.1109/ACCESS.2021.3078076
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JournalW. Shehieb, M. Assaad, A. Tawfik, N. Ashidi Mat Isa, Meibomian Gland Cyst Detection and Classification Using Hyperspectral Imaging, Cogent Engineering, Vol: 8, Mar 2021, doi: 1883831
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1. A. Morgan, A. Hassan, M. Watheq El-Kharashi and A. Tawfik, “NoC2: An Efficient Interfacing Approach for Heavily-Communicating NoC-Based Systems”, IEEE Access, volume 8, PP: 185992-186011, 22 October 2020.
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2. M. Noman, V. Stankovic, and A. Tawfik, “Portable Offline Indoor Object Recognition System for the Visually Impaired”, Cogent Engineering, 23 Sept 2020.
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W. Sheheib, M. Asaad, A. Tawfik and Nor Ashidi,“Analysis and Recovery Monitoring of Meibomian Gland Dysfunction Disease Using Hyperspectral Imaging”, 19th IEEE ISSPIT, 10-12 Dec. 2019.
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M. Noman, V. Stankovic, and A. Tawfik, “Object Detection Techniques: Overview and Performance Comparison”, 19th IEEE ISSPIT, 10-12 Dec. 2019.
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1. F. Guibaly, M. Taher, A. Zaki, M. Watheq El-Kharashi and A. Tawfik, “Parallel Multidiemnsional Lookhead Sorting Algorithm”, IEEE Access, Volume 7, PP. 75446 – 75463, 5 June 2019
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G. Fahmy, Illiasu, A. Tawfik, “Automatic Seizure Detection in Face-Based Video Based on CWT”, IEEE ISSPIT 2018, Louisville, Kentucky, USA from 6-8 December 2018.
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A. Tawfik, Asmaa Awad, Mobile Phone Applications for Education” 3rd International Conference on Learning and Teaching, April 7-9, 2017, South Korea.
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A. Tawfik, “Efficient Watermark Registration Technique for Monochrome Images”, IEEE 15th ISSPIT, AbuDhabi UAE, Dec. 2015
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A. Tawfik, Faysal Djeddi, Sami Sami, M. Mhanna and Abdalla Yousif, “Efficient Registration Technique for Watermarked Biomedical Images”, URC 1-2 May 2013, Zayed University, Dubai, UAE
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A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A New Watermarking Scheme for Colour Images Captured by Mobile Phone Cameras," IJCSNS International Journal of Computer Science and Network Security, vol. 9, pp. 248-254, July 2009.
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A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A Novel Blind Image Watermarking Technique for Colour RGB Images in the DCT Domain Using Green Channel", in Mosharaka International Conference on Communications, Computers and Applications (MIC-CCA 2008) , Amman
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13- A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “Color Image Watermarking Using DCT Technique“, submitted to IEEE International Conference on Electronics, Circuits & Systems (ICECS), Malta, August 31st-3rd September 2008.
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A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “A New Blind Image Watermarking of Handwritten Signatures using Low Frequency Band DCT coefficients “, IEEE International Conference on Signal Processing and Communications (ICSPC 2007) , Dubai, United Arab Emirates (UAE) on 24–27 November 2007.
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A. Al-Gindy, H. Al-Ahmad, A. Tawfik and R. Qahwaji “A New Blind Image Watermarking Technique For Dual watermarks using Low Frequency Band DCT Coefficients. “, 14th IEEE International Conference on Electronics, Circuits and Systems, Marrakech, Morocco on December 11-14, 2007.
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A. ElGindy, A.Tawfik, H. Al-Ahmed, and R. Qahwaji ““Enhanced DCT Based Technique with Shuffle Scheme for Robust Image Watermarking” International Conference on Communication, Computer and Power ICCCB’07, Muskat, Oman, pp. 455-458,Feb. 2007.
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A. Tawfik, “ An Efficient Implementation of Planar and Cylindrical Adaptive Beamforming”, Scientific Bulletin, Ain-Shams Univ. Faculty of Engineering, Vo. 38, No. 1, 2003.
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A. Tawfik and S. Stergiopoulos, "A Generic Processing Structure Decomposing the Beamforming Process of 2-D & 3-D Arrays of Sensors into Sub-Sets of Coherent Processes ", J. Acoust. Soc. Am. Oct. 1998.
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K. Kallenakis, P. Agathoklis and A. Tawfik, "A Note on the Orthogonal Realization of All-Pass Digital Filters and Their Finite Wordlength Effects", IEEE Trans. on Signal Processing, Vol. 44, pp. 2616-2619, Oct. 1996.
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F. El-Guibaly and A. Tawfik, "Mapping 3-D IIR Digital Filter onto Systolic Arrays", Multidimensional Systems and Signal Processing 7, pp. 7-26,1996.
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A. Tawfik, F. El-Guibaly, and P. Agathoklis, "Systolic Implementation of Fixed-Point State-Space Digital Filter", IEE Proc. Pt. G, pp. 193-199, June, 1995.
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A. Tawfik, P. Agathoklis, and F. El-Guibaly, "New Low Roundoff Noise Realization of Second-Order IIR Digital Filter", IEEE Trans. Signal Processing, pp. 1255-1258, May 1995.
A. M. Redha, N. A. Mat Isa, and A. Tawfik, Acne Detection Based on Reconstructed Hyperspectral Images, J. IMaging, pp.1 - 15, Jul 2024
Acne Vulgaris is a common type of skin disease that affects more than 85% of teenagers and frequently continues even in adulthood. While it is not a dangerous skin disease, it can significantly impact the quality of life. Hyperspectral imaging (HSI), which captures a wide spectrum of light, has emerged as a tool for the detection and diagnosis of various skin conditions. However, due to the high cost of specialised HS cameras, it is limited in its use in clinical settings. In this research, a novel acne detection system that will utilise reconstructed hyperspectral (HS) images from RGB images is proposed. A dataset of reconstructed HS images is created using the best-performing HS reconstruction model from our previous research. A new acne detection algorithm that is based on reconstructed HS images and RetinaNet algorithm is introduced. The results indicate that the proposed algorithm surpasses other techniques based on RGB images. Additionally, reconstructed HS images offer a promising and cost-effective alternative to using expensive HSI equipment for detecting conditions like acne or other medical issues.
About the journal
T. Awaad, M. Watheq Elkharashy, M. Taher, A. Tawfik, Detecting Cyber Attacks In-Vehicle Diagnostics using Intelligent Multistage Framework, MDPI Sensors, pp.1 - 12, Sep 2023
The advanced technology of vehicles makes them vulnerable to external exploitation. The current trend of research is to impose security measures to protect vehicles from different aspects. One of the main problems that counter Intrusion Detection Systems (IDSs) is the necessity to have a low false acceptance rate (FA) with high detection accuracy without major changes in the vehicle network infrastructure. Furthermore, the location of IDSs can be controversial due to the limitations and concerns of Electronic Control Units (ECUs). Thus, we propose a novel framework of multistage to detect abnormality in vehicle diagnostic data based on specifications of diagnostics and stacking ensemble for various machine learning models. The proposed framework is verified against the KIA SOUL and Seat Leon 2018 datasets. Our IDS is evaluated against point anomaly attacks and period anomaly attacks that have not been used in its training. The results show the superiority of the framework and its robustness with high accuracy of 99.21%, a low false acceptance rate of 0.003%,and a good detection rate (DR) of 99.63% for Seat Leon 2018, and an accuracy of 99.22%, a low false acceptance rate of 0.005%, and good detection rate of 98.59% for KIA SOUL.
About the journal
A. Kanellakis, A. Tawfik, Sufficient Criterion for Instability of 2-D Linear Discrete Systems, Franklin Open, Vol: 3, pp.1 - 5, Jun 2023
In this paper, a theorem for the instability checking of linear shift-invariant two-dimensional discrete systems is proposed. This is based on the results for the location of the roots of polynomials presented by Mori and thecriterion for the stability of 2-D discrete systems presented by Murray and Delsarte et al. The theorem provides a new sufficient criterion which can be applied easily for the 2-D instability checking. This is demonstrated by detailed examples.
About the journal
A. Kanellakis, A. Tawfik and P. Agathoklis, Inverse and Direct Solutions of the Discrete-time Lyapunov Equation with Systems Matrix in Companion Form, IEEE Access, pp.1 - 10, Dec 2021
The discrete time Lyapunov equation is used in many applications and there is interest in its inverse and direct solutions. New methods are proposed to obtain solutions for cases where the system matrix is in controllable canonical form. The approach is based on the relationship between the discrete Lyapunov equation and the entries of one of the stability tables presented by Jury. It is shown that the inverse solution,which is based on this stability table, can be obtained using LDLt decomposition. Also the direct solution ofthe discrete Lyapunov equation can be obtained directly from the entries of this stability table. The proposedalgorithms are illustrated by numerical examples.
About the journal
A. Kanellakis, A. Tawfik and P. Agathoklis, “Stability Analysis of 2-D Discrete and Continuous State-Space Systems, IET Contorl Theory & Applications, pp.1 - 10, Nov 2021
This paper presents new stability conditions for two-dimensional (2-D) systems in statespace description. Both discrete and continuous systems are studied. These results are based on the criteria first presented by Huang, De Carlo, Strintzis, Murray, Delsarte, et al. and on the discrete Lyapunov equation with complex elements for 2-D systems. The stability properties of the Mansour matrix are also used for stability testing in state-space. Criteria for the VSHP property of 2-D polynomials are further presented using the continuous Lyapunov equation with complex elements and the stability properties of the Schwarz matrix form. The stability properties of the Schwarz matrix are also used for testing the VSHP property of 2-D polynomials in state-space. The proposed new criteria are nonconservative for the stability analysis of 2-D discrete and continuous systems and achieve the aim of reducing the original 2-D problem as much as possible to a set of 1-D stability tests. Numerical examples are given to illustrate the utility of the proposed conditions.
About the journal
M. Saeed Darweesh, Mostafa Adel, Ahmed Anwar, Omar Farag, Ahmed Kotb, Mohamed Adel, A. Tawfik, Early breast cancer diagnostics based on hierarchical machine learning classification for mammography images, Cogent Engineering, Vol: 8, Sep 2021, doi: 10.1080/23311916.2021.1968324
Breast cancer constitutes a significant threat to women’s health and is considered the second leading cause of their death. Breast cancer is a result of abnormal behavior in the functionality of the normal breast cells. Therefore, breast cells tend to grow uncontrollably, forming a tumor that can be felt like a breast lump. Early diagnosis of breast cancer is proved to reduce the risks of death by providing a better chance of identifying a suitable treatment. Machine learning and artificial intelligence play a key role in healthcare systems by assisting physicians in diagnosing early, better, and treating various diseases. For achieving the early detection of breast cancer, this paper proposes a Machine Learning-based two-level top-down hierarchical approach for breast cancer detection and classification into three classes: normal, benign, and malignant, using the Mammographic Image Analysis Society (MIAS) mammography dataset. Different data preprocessing techniques are applied before using feature extraction techniques and machine learning algorithms for classification. The first classification stage which distinguishes between normal and abnormal cases is comprised of Gray Level Co-occurrence Matrix (GLCM) as a feature extraction technique and random forest as a classifier, followed by the second classification stage which classifies the abnormal cases into benign or malignant cases and is comprised of Local Binary Patterns (LBP) as a feature extraction technique and random forest as a classifier. The classification accuracy for the first stage is 97% and an F1-score of 0.98 and 0.97 for normal and abnormal classes. While for the second stage, the classification accuracy is 75% and an F1-score of 0.76 and 0.74 for benign and malignant classes. The overall hierarchical classification system achieves a classification accuracy of 85%, Matthews correlation coefficient (MCC) of 0.76, and F1-score of 0.98, 0.7, and 0.74 for normal, benign, and malignant test cases.
About the journal
A. Kanellakis and A. Tawfik, A New Sufficient Criterion for the Stability of 2-D Discrete Systems, IEEE Access, Vol: 9, pp.70392 - 70395, May 2021, doi: 10.1109/ACCESS.2021.3078076
During the past few decades, two and higher dimensional systems have been extensively applied in many areas of research. The representation of the 2-D systems in the frequency domain is usually given by its transfer function. The bounded-input bounded-output (BIBO) stability of the two dimensional discrete systems depends on the zeros of the characteristic polynomial which is the denominator of this transfer function. In this paper, a new sufficient criterion for the stability of two-dimensional linear shift-invariant discrete systems is presented. The new criterion is based on the sufficient condition for stable polynomials with complex coefficients and the stability criterion for 2-D discrete systems proposed by Murray and Delsarte et al.. The new criterion is non-conservative for the stability testing of 2-D discrete systems. It is shown that the proposed sufficient criterion is simple enough to be applied for the stability checking of the 2-D discrete systems. The utility of the proposed criterion is demonstrated by examples.
About the journal
W. Shehieb, M. Assaad, A. Tawfik, N. Ashidi Mat Isa, Meibomian Gland Cyst Detection and Classification Using Hyperspectral Imaging, Cogent Engineering, Vol: 8, Mar 2021, doi: 1883831
The primary role of the oily secretion (meibum) is to ensure tear film stability and retard evaporation. In addition to these is providing ocular surface lubrication, which is necessary for smooth eyelid movements. When a gland is blocked, it is described as a Meibomian gland cyst (MGC), which can be a meibomian cyst, usually referred to as chalazion (eye bump), or in the case of inflammation, it is considered to be a hordeolum (sty or stye). Topical ophthalmic ointments and eyelid heat massages can treat early diagnosed MGC; otherwise, surgical operation is required. The current techniques of diagnosing MGC are usually uncomfortable or invasive, such as examining the tarsal plate after everting the eyelid or by biopsy procedures. The purpose of this work is to propose a non-invasive MGC evaluation and classification technique using hyperspectral imaging and image processing. The proposed technique was carried out on a single patient (i.e., case study) for a period of 4 months to monitor the MGC evolution until postsurgery-recovery and was compared with a normal eyelid patient. The collected hypercube data were processed using Multivariate Curve Resolution (MCR) and image analysis to classify the MGC severity levels. The proposed work built the threshold of the complete system, where early diagnosis of an MGC is possible before it becomes visible to the eye,
About the journal
1. A. Morgan, A. Hassan, M. Watheq El-Kharashi and A. Tawfik, “NoC2: An Efficient Interfacing Approach for Heavily-Communicating NoC-Based Systems”, IEEE Access, volume 8, PP: 185992-186011, 22 October 2020.
2. M. Noman, V. Stankovic, and A. Tawfik, “Portable Offline Indoor Object Recognition System for the Visually Impaired”, Cogent Engineering, 23 Sept 2020.
W. Sheheib, M. Asaad, A. Tawfik and Nor Ashidi,“Analysis and Recovery Monitoring of Meibomian Gland Dysfunction Disease Using Hyperspectral Imaging”, 19th IEEE ISSPIT, 10-12 Dec. 2019.
M. Noman, V. Stankovic, and A. Tawfik, “Object Detection Techniques: Overview and Performance Comparison”, 19th IEEE ISSPIT, 10-12 Dec. 2019.
1. F. Guibaly, M. Taher, A. Zaki, M. Watheq El-Kharashi and A. Tawfik, “Parallel Multidiemnsional Lookhead Sorting Algorithm”, IEEE Access, Volume 7, PP. 75446 – 75463, 5 June 2019
G. Fahmy, Illiasu, A. Tawfik, “Automatic Seizure Detection in Face-Based Video Based on CWT”, IEEE ISSPIT 2018, Louisville, Kentucky, USA from 6-8 December 2018.
A. Tawfik, Asmaa Awad, Mobile Phone Applications for Education” 3rd International Conference on Learning and Teaching, April 7-9, 2017, South Korea.
A. Tawfik, “Efficient Watermark Registration Technique for Monochrome Images”, IEEE 15th ISSPIT, AbuDhabi UAE, Dec. 2015
A. Tawfik, Faysal Djeddi, Sami Sami, M. Mhanna and Abdalla Yousif, “Efficient Registration Technique for Watermarked Biomedical Images”, URC 1-2 May 2013, Zayed University, Dubai, UAE
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A New Watermarking Scheme for Colour Images Captured by Mobile Phone Cameras," IJCSNS International Journal of Computer Science and Network Security, vol. 9, pp. 248-254, July 2009.
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A Novel Blind Image Watermarking Technique for Colour RGB Images in the DCT Domain Using Green Channel", in Mosharaka International Conference on Communications, Computers and Applications (MIC-CCA 2008) , Amman
13- A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “Color Image Watermarking Using DCT Technique“, submitted to IEEE International Conference on Electronics, Circuits & Systems (ICECS), Malta, August 31st-3rd September 2008.
A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “A New Blind Image Watermarking of Handwritten Signatures using Low Frequency Band DCT coefficients “, IEEE International Conference on Signal Processing and Communications (ICSPC 2007) , Dubai, United Arab Emirates (UAE) on 24–27 November 2007.
A. Al-Gindy, H. Al-Ahmad, A. Tawfik and R. Qahwaji “A New Blind Image Watermarking Technique For Dual watermarks using Low Frequency Band DCT Coefficients. “, 14th IEEE International Conference on Electronics, Circuits and Systems, Marrakech, Morocco on December 11-14, 2007.
A. ElGindy, A.Tawfik, H. Al-Ahmed, and R. Qahwaji ““Enhanced DCT Based Technique with Shuffle Scheme for Robust Image Watermarking” International Conference on Communication, Computer and Power ICCCB’07, Muskat, Oman, pp. 455-458,Feb. 2007.
A. Tawfik, “ An Efficient Implementation of Planar and Cylindrical Adaptive Beamforming”, Scientific Bulletin, Ain-Shams Univ. Faculty of Engineering, Vo. 38, No. 1, 2003.
A. Tawfik and S. Stergiopoulos, "A Generic Processing Structure Decomposing the Beamforming Process of 2-D & 3-D Arrays of Sensors into Sub-Sets of Coherent Processes ", J. Acoust. Soc. Am. Oct. 1998.
K. Kallenakis, P. Agathoklis and A. Tawfik, "A Note on the Orthogonal Realization of All-Pass Digital Filters and Their Finite Wordlength Effects", IEEE Trans. on Signal Processing, Vol. 44, pp. 2616-2619, Oct. 1996.
F. El-Guibaly and A. Tawfik, "Mapping 3-D IIR Digital Filter onto Systolic Arrays", Multidimensional Systems and Signal Processing 7, pp. 7-26,1996.
A. Tawfik, F. El-Guibaly, and P. Agathoklis, "Systolic Implementation of Fixed-Point State-Space Digital Filter", IEE Proc. Pt. G, pp. 193-199, June, 1995.
A. Tawfik, P. Agathoklis, and F. El-Guibaly, "New Low Roundoff Noise Realization of Second-Order IIR Digital Filter", IEEE Trans. Signal Processing, pp. 1255-1258, May 1995.
Conference Presentation
- A. Tawfik, A. Awad and T. Jamal, “Using Smartphones Technology in Classrooms”, Education and Development Conference, Thailand, March 2017.
- A. Tawfik, “Efficient Watermark Registration Technique for Monochrome Images,” IEEE 15th ISSPIT, Abu Dhabi, UAE, pp. 619-622, December 2015.
- A. Tawfik, Abdulla Albahttiti, Omar Elnajjar, Anas Nader, and Mohammed Jamil , “ Smart IOT Switch” URC April 2015, Zayed University, Dubai, UAE.
- A. Tawfik, Ahmed Abuelyan, Muhannad Yasir, Mohammed Hazem, and Hassan Shukri, "Wirless Pipe-Inspection Robot”, URC May 2014, Zayed University, Dubai UAE.
- A. Tawfik, Mohammed Musaed, Hussam Musaed, Ali Mushtaq, and Ahmed Elbur, “ Mindwave Alert System”, URC May 2014, Zayed University, Dubai UAE.
- A. Tawfik, Faysal Djeddi, Sami Sami, M. Mhanna and Abdalla Yousif, “Efficient Registration Technique for Watermarked Biomedical Images”, URC 1-2 May 2013, Zayed University, Dubai, UAE.
- A. Tawfik, Mussab Saleh Hassan, Mohammed Maher, Faisel Hashem, Nasser salah, " Orthogonal Frequency Division Multiplexing Techniques for Long Term Evolution Fourth Generation Mobile Systems", URC 18-19 April 2012, Zayed University, Dubai, UAE.
- A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A High Capacity Digital Watermarking Techniques for the Authentication of Colour Images ", IEEE International Symposium on Signal Processing & Information Technology (ISSPIT) ,14-16 December 2009, Ajman, UAE.
- A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A New Watermarking Scheme For Colour Images Captured By mobile Phone Cameras ", The ninth TED International Conference Visulaization, Imaging and Image Processing, 13-15 July 2009, Cambridge, United Kingdom.
- A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A Frequency Domain Adaptive Watermarking Algorithm for Still Colour Images," International Conference on Advances in Computational Tools for Engineering Applications, 15-17 July, Lebanon, 2009.
- A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A Novel Blind Image Watermarking Technique for Colour RGB Images in the DCT Domain Using the Green Channel," in Mosharaka International Conference on Communications, Computers, and Applications (MIC-CCA 2008), Amman.
- A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “Color Image Watermarking Using DCT Technique“, submitted to IEEE International Conference on Electronics, Circuits & Systems (ICECS), Malta, August 31st-3rd September 2008.
- A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “A New Blind Image Watermarking of Handwritten Signatures using Low Frequency Band DCT coefficients “, IEEE International Conference on Signal Processing and Communications (ICSPC 2007) , Dubai, United Arab Emirates (UAE) on 24–27 November 2007.
- A. Al-Gindy, H. Al-Ahmad, A. Tawfik, and R. Qahwaji, “A New Blind Image Watermarking Technique for Dual Watermarks Using Low Frequency Band DCT Coefficients,” accepted in the 14th IEEE International Conference on Electronics, Circuits, and Systems, Marrakech, Morocco, December 11-14, 2007.
- A. ElGindy, A. Tawfik, H. Al-Ahmed, and R. Qahwaji, “Enhanced DCT-Based Technique with Shuffle Scheme for Robust Image Watermarking,” International Conference on Communication, Computer, and Power (ICCCB'07), Muscat, Oman, pp. 455-458, February 2007.
- S. El-Ramly, A. Tawfik, and M. Masoud, "A Rate-Determination Algorithm for Variable-Rate Speech Coder," September 2004.
- M. Merette, S. El-Ramly and A. Tawfik," An Enhanced Variable Bit-Rate CELP Speech Coder", IEEE Pacific Rim Conference on communication, computers & Signal Processing (PACRIM"03), Victoria, Canada, 2003.
- A. Tawfik, "An Efficient Implementation of Planar and Cylindrical Adaptive Beamforming," Scientific Bulletin, Ain Shams University, Faculty of Engineering, Vol. 38, Cairo, Egypt, 2003.
- M. Miretee, S. El-Ramly, and A. Tawfik, "A New CELP Speech Coder for Wireless Communication," 14th International Conference on Digital Signal Processing, Santorini, Greece, 2002.
- E. Abdel-Raheem, A. Tawfik, and F. El-Guibaly, "Effects of Finite Word Length in Two-Channel QMF Banks," IEEE Symposium on Advances in Digital Filtering and Signal Processing, Victoria, B.C., Canada, pp. 144-148, June 1998.
- A. Tawfik and Esam Abdel-Raheem, "Design of Two-Channel QMF Banks Satisfying Prescribed Specifications," The Fifteenth National Radio Science Conference (NRSC), Cairo, Egypt, pp. C6 1-9, February 1998.
- A. Tawfik, S. Stergiopoulos, and A. C. Dhanantwari, "A Generic Beamforming Structure Allowing Implementation of Adaptive Processing Schemes of 2-D & 3-D Arrays of Sensors," Oceans '97 MTS/IEEE, Halifax, pp. 369-373, October 1997.
- A. Tawfik and S. Stergiopoulos, "A Generic Processing Structure Decomposing the Beamforming Process of 2-D & 3-D Arrays into Subsets of Coherent Processes," Canadian Conference on Electrical and Computer Engineering, Newfoundland, pp. 560-563, September 1997.
- A. Tawfik, P. Agathoklis, and F. El-Guibaly, "New Residue-Feedback State-Space IIR Digital Filter Realizations," IEEE International Symposium on Circuits and Systems, Seattle, WA, pp. 61-64, May 1995.
- G. Fahmy, Illiasu, A. Tawfik, “Automatic Seizure Detection in Face-Based Video Based on CWT”, IEEE ISSPIT 2018, Louisville, Kentucky, USA from 6-8 December 2018.
- A. Tawfik, Ahmed Hamdan, Abdelrahman Azzam, Yahya Noureldin, "Novel Medical Bed," IEEE International Conference ASET, Higher College of Technology, Sharjah, UAE, 22-23 March 2018.
- K. K. Mujeeb Rahman, Monica Subashini, Mohammed Nasor, Ayman Tawfik, "[Title of Paper]," IEEE International Conference ASET, Higher College of Technology, Sharjah, UAE, 22-23 March 2018.
- A. Tawfik, Asmaa Awad, "Mobile Phone Applications for Education," 3rd International Conference on Learning and Teaching, April 7-9, 2017, South Korea.
- A. Tawfik, Abdulla Albahttiti, Omar Elnajjar, Anas Nader, and Mohammed Jamil, "Smart IoT Switch."
- Tawfik, Ahmed Abuelyan, Muhannad Yasir, Mohammed Hazem, and Hassan Shukri, "Wirless Pipe-Inspection Robot”, A. Tawfik, Mohammed Musaed, Hussam Musaed, Ali Mushtaq, and Ahmed Elbur, “ Mindwave Alert System”, URC May 2014, Zayed University, Dubai UAE.
- A. Tawfik, Mussab Saleh Hassan, Mohammed Maher, Faisel Hashem, Nasser salah, " Orthogonal Frequency Division Multiplexing Techniques for Long Term Evolution Fourth Generation Mobile Systems", URC 18-19 April 2012, Zayed University, Dubai, UAE.
- W. Sheheib, M. Asaad, A. Tawfik, and Nor Ashidi, "Analysis and Recovery Monitoring of Meibomian Gland Dysfunction Disease Using Hyperspectral Imaging," 19th IEEE ISSPIT, 10-12 Dec. 2019.
- M. Noman, V. Stankovic, and A. Tawfik, "Object Detection Techniques: Overview and Performance Comparison," 19th IEEE ISSPIT, 10-12 December 2019.
- G. Fahmy, Illiasu, and A. Tawfik, "Automatic Seizure Detection in Face-Based Video Based on CWT," IEEE ISSPIT 2018, Louisville, Kentucky, USA, 6-8 December 2018.
A. Tawfik, A. Awad and T. Jamal, “Using Smartphones Technology in Classrooms”, Education and Development Conference, Thailand, March 2017.
A. Tawfik, “Efficient Watermark Registration Technique for Monochrome Images,” IEEE 15th ISSPIT, Abu Dhabi, UAE, pp. 619-622, December 2015.
A. Tawfik, Abdulla Albahttiti, Omar Elnajjar, Anas Nader, and Mohammed Jamil , “ Smart IOT Switch” URC April 2015, Zayed University, Dubai, UAE.
A. Tawfik, Ahmed Abuelyan, Muhannad Yasir, Mohammed Hazem, and Hassan Shukri, "Wirless Pipe-Inspection Robot”, URC May 2014, Zayed University, Dubai UAE.
A. Tawfik, Mohammed Musaed, Hussam Musaed, Ali Mushtaq, and Ahmed Elbur, “ Mindwave Alert System”, URC May 2014, Zayed University, Dubai UAE.
A. Tawfik, Faysal Djeddi, Sami Sami, M. Mhanna and Abdalla Yousif, “Efficient Registration Technique for Watermarked Biomedical Images”, URC 1-2 May 2013, Zayed University, Dubai, UAE.
A. Tawfik, Mussab Saleh Hassan, Mohammed Maher, Faisel Hashem, Nasser salah, " Orthogonal Frequency Division Multiplexing Techniques for Long Term Evolution Fourth Generation Mobile Systems", URC 18-19 April 2012, Zayed University, Dubai, UAE.
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A High Capacity Digital Watermarking Techniques for the Authentication of Colour Images ", IEEE International Symposium on Signal Processing & Information Technology (ISSPIT) ,14-16 December 2009, Ajman, UAE.
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik "A New Watermarking Scheme For Colour Images Captured By mobile Phone Cameras ", The ninth TED International Conference Visulaization, Imaging and Image Processing, 13-15 July 2009, Cambridge, United Kingdom.
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A Frequency Domain Adaptive Watermarking Algorithm for Still Colour Images," International Conference on Advances in Computational Tools for Engineering Applications, 15-17 July, Lebanon, 2009.
A. Al-Gindy, H. Al-Ahmad, R. Qahwaj, and A. Tawfik, "A Novel Blind Image Watermarking Technique for Colour RGB Images in the DCT Domain Using the Green Channel," in Mosharaka International Conference on Communications, Computers, and Applications (MIC-CCA 2008), Amman.
A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “Color Image Watermarking Using DCT Technique“, submitted to IEEE International Conference on Electronics, Circuits & Systems (ICECS), Malta, August 31st-3rd September 2008.
A. Al-Gindy, A. Tawfik, H. Al-Ahmad and R. Qahwaji “A New Blind Image Watermarking of Handwritten Signatures using Low Frequency Band DCT coefficients “, IEEE International Conference on Signal Processing and Communications (ICSPC 2007) , Dubai, United Arab Emirates (UAE) on 24–27 November 2007.
A. Al-Gindy, H. Al-Ahmad, A. Tawfik, and R. Qahwaji, “A New Blind Image Watermarking Technique for Dual Watermarks Using Low Frequency Band DCT Coefficients,” accepted in the 14th IEEE International Conference on Electronics, Circuits, and Systems, Marrakech, Morocco, December 11-14, 2007.
A. ElGindy, A. Tawfik, H. Al-Ahmed, and R. Qahwaji, “Enhanced DCT-Based Technique with Shuffle Scheme for Robust Image Watermarking,” International Conference on Communication, Computer, and Power (ICCCB'07), Muscat, Oman, pp. 455-458, February 2007.
S. El-Ramly, A. Tawfik, and M. Masoud, "A Rate-Determination Algorithm for Variable-Rate Speech Coder," September 2004.
M. Merette, S. El-Ramly and A. Tawfik," An Enhanced Variable Bit-Rate CELP Speech Coder", IEEE Pacific Rim Conference on communication, computers & Signal Processing (PACRIM"03), Victoria, Canada, 2003.
A. Tawfik, "An Efficient Implementation of Planar and Cylindrical Adaptive Beamforming," Scientific Bulletin, Ain Shams University, Faculty of Engineering, Vol. 38, Cairo, Egypt, 2003.
M. Miretee, S. El-Ramly, and A. Tawfik, "A New CELP Speech Coder for Wireless Communication," 14th International Conference on Digital Signal Processing, Santorini, Greece, 2002.
E. Abdel-Raheem, A. Tawfik, and F. El-Guibaly, "Effects of Finite Word Length in Two-Channel QMF Banks," IEEE Symposium on Advances in Digital Filtering and Signal Processing, Victoria, B.C., Canada, pp. 144-148, June 1998.
A. Tawfik and Esam Abdel-Raheem, "Design of Two-Channel QMF Banks Satisfying Prescribed Specifications," The Fifteenth National Radio Science Conference (NRSC), Cairo, Egypt, pp. C6 1-9, February 1998.
A. Tawfik, S. Stergiopoulos, and A. C. Dhanantwari, "A Generic Beamforming Structure Allowing Implementation of Adaptive Processing Schemes of 2-D & 3-D Arrays of Sensors," Oceans '97 MTS/IEEE, Halifax, pp. 369-373, October 1997.
A. Tawfik and S. Stergiopoulos, "A Generic Processing Structure Decomposing the Beamforming Process of 2-D & 3-D Arrays into Subsets of Coherent Processes," Canadian Conference on Electrical and Computer Engineering, Newfoundland, pp. 560-563, September 1997.
A. Tawfik, P. Agathoklis, and F. El-Guibaly, "New Residue-Feedback State-Space IIR Digital Filter Realizations," IEEE International Symposium on Circuits and Systems, Seattle, WA, pp. 61-64, May 1995.
G. Fahmy, Illiasu, A. Tawfik, “Automatic Seizure Detection in Face-Based Video Based on CWT”, IEEE ISSPIT 2018, Louisville, Kentucky, USA from 6-8 December 2018.
A. Tawfik, Ahmed Hamdan, Abdelrahman Azzam, Yahya Noureldin, "Novel Medical Bed," IEEE International Conference ASET, Higher College of Technology, Sharjah, UAE, 22-23 March 2018.
K. K. Mujeeb Rahman, Monica Subashini, Mohammed Nasor, Ayman Tawfik, "[Title of Paper]," IEEE International Conference ASET, Higher College of Technology, Sharjah, UAE, 22-23 March 2018.
A. Tawfik, Asmaa Awad, "Mobile Phone Applications for Education," 3rd International Conference on Learning and Teaching, April 7-9, 2017, South Korea.
A. Tawfik, Abdulla Albahttiti, Omar Elnajjar, Anas Nader, and Mohammed Jamil, "Smart IoT Switch."
Tawfik, Ahmed Abuelyan, Muhannad Yasir, Mohammed Hazem, and Hassan Shukri, "Wirless Pipe-Inspection Robot”, A. Tawfik, Mohammed Musaed, Hussam Musaed, Ali Mushtaq, and Ahmed Elbur, “ Mindwave Alert System”, URC May 2014, Zayed University, Dubai UAE.
A. Tawfik, Mussab Saleh Hassan, Mohammed Maher, Faisel Hashem, Nasser salah, " Orthogonal Frequency Division Multiplexing Techniques for Long Term Evolution Fourth Generation Mobile Systems", URC 18-19 April 2012, Zayed University, Dubai, UAE.
W. Sheheib, M. Asaad, A. Tawfik, and Nor Ashidi, "Analysis and Recovery Monitoring of Meibomian Gland Dysfunction Disease Using Hyperspectral Imaging," 19th IEEE ISSPIT, 10-12 Dec. 2019.
M. Noman, V. Stankovic, and A. Tawfik, "Object Detection Techniques: Overview and Performance Comparison," 19th IEEE ISSPIT, 10-12 December 2019.
G. Fahmy, Illiasu, and A. Tawfik, "Automatic Seizure Detection in Face-Based Video Based on CWT," IEEE ISSPIT 2018, Louisville, Kentucky, USA, 6-8 December 2018.
Memberships, Awards and Honors
- Certificate of Merit for supervising two winning teams in IEEE Student Day 2016, Al-Ain University, May 2016.
- Certificate of Merit for supervising the best undergraduate project in URC 2014, Zayed University, Dubai, UAE.
- Certificate of Merit for supervising the best scientific paper at the 2nd Approach Students’ Scientific Conference of AUST Network, May 2012.
- Certificate of Merit for supervising the best scientific paper in 2nd Approach Students’ Scientific Conference of AUST Network, May 2006.
- Certificates of Appreciation for contributions to the 1st and 2nd Approach Students’ Scientific Conference at AUST Network, June 2005.
- Egyptian Government Excellence Award (1980–1983).
- Graduation Excellence Award, Egyptian Syndicate of Engineers (1983).
- IEEE Member since 1983.
- Member of the AU Dream Team for ABET Accreditation.