http://ir.library.ui.edu.ng/handle/123456789/478 DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING 2026-04-10T11:11:11Z http://ir.library.ui.edu.ng/handle/123456789/2224 Title: Post-graduate experience Authors: Fakolujo, O. A. 1998-01-01T00:00:00Z http://ir.library.ui.edu.ng/handle/123456789/2218 Title: A prototype of a fingerprint based ignition systems in vehicles Authors: Omidiora, E. O.; Fakolujo, O. A.; Arulogun, O. T.; Aborisade, D. O. Abstract: Biometric systems have overtime served as robust security mechanisms in various domains. Fingerprints are the oldest and most widely used form of biometric identification. A critical step in exploring its advantages is to adopt it for use as a form of security in already existing systems, such as vehicles. This research work focuses on the use of fingerprints for vehicle ignition, as opposed to the conventional method of using keys. The prototype system could be divided into the following modules: fingerprint analysis software module that accepts fingerprints images; hardware interface module and the ignition system module. The fingerprint recognition software enables fingerprints of valid users of the vehicle to be enrolled in a database. Before any user can ignite the vehicle, his/her fingerprint image is matched against the fingerprints in the database while users with no match in the database are prevented from igniting the vehicle. Control for the ignition system of the vehicle is achieved by sending appropriate signals to the parallel port of the computer and subsequently to the interface control circuit. The developed prototype serves as an impetus to drive future research, geared towards developing a more robust and embedded real-time fingerprint based ignition systems in vehicles. 2011-01-01T00:00:00Z http://ir.library.ui.edu.ng/handle/123456789/2214 Title: A performance analysis of delta and huffman compression algorithms Authors: Oke, A. O.; Fakolujo, O. A.; Emuoyibofarhe, O. J. Abstract: With the recent trend in Information and Communication Technology, Storage and Transfer of data and Information are two vital issues which have Cost and Speed implication respectively. Large volume of data (text or image) is constantly being processed on the internet or on a Personal Computer, which has led to the Upgrade of current System. Hence, the need for compression, which reduces storage capacity and effect Speed of transfer. Data Compression is the act of reducing the size of a file by minimizing redundant data. In a text file, redundant data can be frequently occurring characters or common vowels. This research involves a comparative performance analysis of Huffman and Delta Compression schemes. A compression program is used to convert data from an easy-to-use format (ASCII) to one optimized for compactness. Huffman and Delta algorithms were implemented using C#. Result was also presented on the efficiency of the former based on three parameters: the number of bit, compression ratio and percentage of compression. It was discovered that Huffman algorithm for data compression performs better, since it can store / transmit the least number of bits. The average compression percentage for Huffman and Delta algorithm was found to be 39% and 45% respectively. Which simply implies that for a large text file, Huffman algorithm will achieve a 39% reduction in the file size and as such increase the capacity of the storage medium. 2009-01-01T00:00:00Z http://ir.library.ui.edu.ng/handle/123456789/2211 Title: Digital watermarking of still images with colour digital watermark Authors: Zubair, A. R.; Fakolujo, O. A.; Rajan, P. K. Abstract: Digital watermarking is a popular tool for copyright protection, content authentication, detection of illegal duplication and alteration, feature tagging and secret communication. In this paper, a method of embedding a colour image as digital watermark into a host image is proposed. The watemark is first converted from the Red-Green-Blue (RGB) colour space to an index image. The index image is decomposed into a series of binary digital images for implementation as multiple watermarking. Experimental results shows that the proposed method is robust to resonable image processing operations and the lossy compression techniques such as the Joint Photographic Expert Group (JPEG) compression. Furthermore, application of democratic approach in signal sampling is found to produce better signal to noise ratio compared with uniform quantizaton approach. 2010-01-01T00:00:00Z