Mohammad Osiur Rahman

Real time road sign recognition system using artificial neural networks for bengali textual information box

An Automated Road Sign Recognition system using Artificial Neural Network for the Textual Information box inscribing in Bengali is presented in this paper. The system captures real time images every two seconds and saves them as JPG format files. The system processes the images to find out whether they contain images of road signs or not. The textual information of the road signs is detected and extracted from the images. The Bengali OCR system takes the textual information as an input to recognize individual Bengali characters. The Bengali OCR is implemented using Multi layer Perceptron. The output of the Bengali OCR system is compared with the previously enrolled standard Bengali textual road signs. The throughput which comes from the matching process is used as input for the speech synthesizer and finally the system delivers the audio stream to the driver, either in Bengali or in English based on the user settings. After testing this system, the obtained accuracy rate was evaluated at 91.48%.

DNA computer based algorithm for recyclable waste paper segregation

DNA computer based algorithm is developed and evaluated for recyclable waste paper segregation.The concepts of replication and massive parallelism operations are used.The matching stage consists of Copy, Extract, Detect and Merge or Union operations.Gel electrophoresis operation is used to identify the candidate paper object grade.Success rate are 92% for WP, 90% for ONP and 93% for OCC with template size 5i?5. This article explores the application of DNA computing in recyclable waste paper sorting. The primary challenge in paper recycling is to obtain raw materials with the highest purity. In recycling, waste papers are segregated according to their various grades, and these are subjected to different recycling processes. Highly sorted paper streams facilitate high quality end products, while saving on processing chemicals and energy. In the industry, different sensors are used in paper sorting systems, namely, ultrasonic, lignin, gloss, stiffness, infra-red, mid-infra red, and color sensors. Different mechanical and optical paper sorting systems have been developed based on the different sensors. However, due to inadequate throughput and some major drawbacks related to mechanical paper sorting systems, the popularity of optical paper sorting systems has increased. The automated paper sorting systems offer significant advantages over the manual systems in terms of human fatigue, throughput, speed, and accuracy. This research has two objectives: (1) to use a web camera as an image sensor for the vision system in lieu of different sensors; and (2) to develop a new DNA computing algorithm based on the theme of template matching techniques for segregating recyclable waste papers according to paper grades. Using the concepts of replication and massive parallelism operations, the DNA computing algorithm can efficiently reduce the computational time of the template matching method. This is the main strength of the DNA computing algorithm in actual inspections. The algorithm is implemented by using a silicon-based computer to verify the success rate in paper grade identification.

Performance measurement of different backoff algorithms in IEEE 802.15.4

The Low Rate Wireless Personal Area network (LR-WPAN), that is IEEE 802.15.4 is extensively used for many areas of applications. The Slotted CSMA/CA mechanism is used by the standard in its contention access period (CAP) in beacon enabled mode. The protocol supported a binary exponential backoff (BEB) algorithm. In this paper, we investigate the saturation throughput, mean frame service time or delay and energy of this standard using the existing BEB algorithm and compares it with three other backoff schemes-exponential increase exponential decrease (EIED), exponential increase linear decrease (EILD), and exponential increase multiplicative decrease (EIMD) algorithm. From simulation results, it is obtained that EIED, EILD, EIMD performs better than BEB for higher loads that is EIED, EILD, EIMD has better throughput, less delay, using minimal power. The EIED propagates the highest throughput, less delay and minimal energy used among all of these schemes.

Cyberspace claiming new dynamism in the jurisprudential philosophy

Purpose – The purpose of this paper is to focus on existing law, the legal system and jurisprudence circling round territorial concepts.Design/methodology/approach – This paper is an opinion piece based on current and recent analysis of legal principle.Findings – After the emergence of the internet as well as cyberspace, human activities are not confined solely to the physical world. They have been extended to a very different and peculiar non‐physical world. This world is everywhere and at the same time it is nowhere; and necessarily it is difficult to prescribe rules and enforce the same regarding cyberspace for its everywhere and nowhere proposition. The elementary concept of jurisprudence e.g. title, ownership and possession, etc. cannot be considered in the way we usually understand in case of real world. However, cyberspace has to be controlled by a legal framework that involves new ideas, leading to a new challenge in existing legal philosophy exclusively based on territorial concept.Originality/va...

The design of a complete uniform segmented display unit for Arabic alphanumeric characters

There are four forms for most of the Arabic characters- initial, medial, final and isolated. This paper presents the design of a complete display unit for Arabic alphanumeric characters using uniform segments. The word ‘complete’ signifies that the proposed display unit can represent all forms of entire Arabic alphabets as well as Arabic numerals. The word ‘uniform’ is used because of avoiding curved segments. The first segmented display unit for Arabic characters in the world covered only the isolated form and did not follow any base line to display a sequence of characters. This work extends the capability to represent all the forms of Arabic characters and follows a base line to represent a sequence of characters. Here a grid structure of 25 non-overlapping segments has been discovered. There can be 109 alphanumeric characters (at least 99 characters such as isolated form- 30, final form-29, medial form- 21, initial form- 20; and 10 numerals) to be displayed and 7-bit input is used to represent each character. After analyzing appropriate segments to be activated for every character, respective logic functions of all segments have been derived to display the entire set of Arabic alphanumeric characters.

Towards understanding personal jurisdiction in cyberspace

Purpose – The purpose of this paper is to show that the internet together with cyberspace form an “everywhere and nowhere proposition” and to discuss numerous problems concerning legal issues, the most vital being confusion as to jurisdiction.Design/methodology/approach – The research was based upon theoretical sources and empirical data.Findings – It was found that a probable solution could be extracted from the US experience for all the nations coming under the virtual framework of cyberspace. Some hi‐tech nations are facing this problem; and the USA is one of them. Even the USA – a large federal state – faces the jurisdictional problem and conflict as regards its own provinces; and the US courts, legal institutions and intellectuals are resorting to established principles of law – domestic or international. Decisions of US cases have been keenly observed to find out how the US courts and legal scholars have taken the help of traditional territorial tenets and precepts to resolve jurisdictional conflict...