Browsing by Author "A. A. Mohamed, Mokhtar"

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    Fast Technique to Recognize Closed Characters in Arabic Handwriting
    (October university for modern sciences and Arts MSA, 2023) Gad, Ramadan; Kandeel, Shaimaa; Al-Adawy, Mohamed; El-Fishawy, Nawal; A. A. Mohamed, Mokhtar
    Considering the distinctive features and characteristics of Arabic scripts, recognizing handwritten Arabic characters is still widely open as a major experimental task, which is not easy to overcome. This study attempts to develop a fast and effective technique for recognizing this difficult type of written script by using an iterative algorithm to extract closed Arabic characters. Some Arabic characters have circles that may be blurred, incomplete, unformed, or distorted. In addition to ligatures with different shapes, the technique is based on the development of a proper Circular Hough Transform. This study used IFN/ENIT, which is a standard database for extracting closed Arabic characters as designed in classes. The first class is closed blurred circles (ق, م , ع ,و ). The second class is unformed circles ( ق, ع , ة ). The third one is incomplete circles (ط , ظ, ص, ض ه,ة, ). Finally, the fourth class is distorted circles ( ط, ظ ). This methodology achieved an outstanding accuracy of approximately 96.67%, a very interesting work for the total four classes related to the 11 closed Arabic characters (out of the 28 characters of the Arabic alphabet)..
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    IOT-based and Auto Firmware System for Transmitting Notifications and Advertisements via GSM/GPRS ModemsIOT-based and Auto Firmware System for Transmitting Notifications and Advertisements via GSM/GPRS Modems
    (October university for modern sciences and Arts MSA, 2023) A. A. Mohamed, Mokhtar; M.R.Aboueid, Ahmed; Akl ElSayed, Tahany; El-Shafeiy, Engy
    Recently, it has been a kind of trend that many applications adopt IOT-based SMS services for delivering notifications and advertisements (i.e. ads) to their users. As a result, we are mobilized to design and develop a GSM-based system within this paper to send alerts and ads in our faculty community as SMS messages. This system is called "NATEGA" as an abbreviation of "Naïve and Auto firmware for Transmitting Exam Grades and Advertisement via SMS messages". The Hardware part of NATEGA system consists of three main modules; GSM/GPRS Module (GGM), USB-to-TTL bridge Module (UTM), and DC-to-DC Converter Module (DDC). Any PC or laptop can be employed for execution of the NATEGA program (i.e. software part) which is developed in C# programming language. The efforts, that have taken place intentionally during design of NATEGA system, led to support both Push paradigm and Pull paradigm concepts in sending notifications and ads. Four performance metrics are used to validate and verify the feasibility of NATEGA system. They are Message Construction Time (MCT), Message-to-Modem Delivering Time (MMDT), SMS Delivery Report Time (SDRT), and Success in Delivering SMS Ratio (SDSR). Time-based metrics (MCT, MMDT, and SDRT) are chosen for evaluation because the provision of timely information is imperative for applications of delivering notifications and ads