Volume 8, Issue 3, March 2016

 

 

 

Image Contrast Enhancement Using Fast Discrete Curvelet Transform via Unequally Spaced Fast Fourier Transform (FDCT-USFFT)
Pages: 36-42 (7) | [Full Text] PDF (615 KB)
AM Hammouche, HM Al-Bakri, RR Mostafa
Trainer in the department of programming, High Institute of Computer Technology, Benghazi, Libya
Department of Information Systems, Faculty of Computers and Information Sciences, Mansoura University, Mansoura, Egypt

Abstract - The digital cameras provided a great service for users of different ages as it facilitated the process of capturing the images, and in spite of that user still needs to improve some of the images marred by the lack of clarity when taking an image because of the lack of proper lighting as it is in cloudy weather or bright or dark sites light , or take the image from a distance, leading to blurred image details. We Propose in this paper a new method for contrast enhancement gray images based on Fast Discrete Curvelet Transform via Unequally Spaced Fast Fourier Transform (FDCT-USFFT). This type of transforms returns a table of curvelet coefficients indexed by a scale parameters, an orientation, and a spatial location. The FDCT-USFFT coefficients can be modified in order to enhancement contrast in an image. Results show that the proposed technique gave very good results, in comparison to the histogram equalization and wavelet transform based contrast enhancement method.
 
Index Terms - FDCTs, FDCT-USFFTs

Citation - AM Hammouche, HM Al-Bakri, RR Mostafa. "Image Contrast Enhancement Using Fast Discrete Curvelet Transform via Unequally Spaced Fast Fourier Transform (FDCT-USFFT)." International Journal of Computer Engineering and Information Technology 8, no. 3 (2016): 36-42.
 

Use of Modern Technology in Reverse Car Parking System
Pages: 43-48 (6) | [Full Text] PDF (288 KB)
E Ali, EA Suri, ENoman Muslim, EU Khan, EA Iqbal
Nice Education Sytem Peshawar, Pakistan
Electrical Engineering Department Sarhad University of Science and IT, Peshawar Pakistan
Electrical Engineering Department Iqra National University, Peshawar Pakistan

Abstract - With the enlargement of automobile field, the number of owned cars is greatly increasing with correspondingly; the number of rookie drivers is strengthening as well. Many of them grumbled that their valuable cars are easily damaged by obstacles that are barely seen through their rear view mirror such as bikes and cycles. On the basis of market researcher survey that in 2010 the worlds car number belabours 6.9 billion, the number of cars yet to appear in the succeeding 8 years will be 1.16 times the current one. Multitudinous people specially pedestrians (person on foot) struck and injured from revoking vehicles each year all over the world. In Pakistan these causalities happen frequently because of immense population in addition many drivers are not fitly edified (toddlers). Many people use bikes or bicycles which are firm to sense while reversing a car for this reason the root notion of this research is to design a device, which will let a person to avoid accident, caused while parking in reverse by the help of ultrasonic sensor we can detect an object, and the collected frequency is detected and amplified. This amplified frequency is given to controller for additional outfits. The beeping as well as LCD display inside the car apprises the driver of the peril and avert a possible mishap.
 
Index Terms - Sensors, Modern Technology, Microcontroller, Hardware Components

Citation - E Ali, EA Suri, ENoman Muslim, EU Khan, EA Iqbal. "Use of Modern Technology in Reverse Car Parking System." International Journal of Computer Engineering and Information Technology 8, no. 3 (2016): 43-48.
 

Real Time Performance Analysis of Digital Mobile Radio (DMR) and APCO Project 25 (P-25) Radio Systems in Land Mobile Radio (LMR) Systems
Pages: 49-55 (7) | [Full Text] PDF (458 KB)
A Qaddus
Bahria University Islamabad, Pakistan

Abstract - During the occurrence of natural disasters and emergencies uninterruptable voice and data services plays a vital role for the communications of public safety networks. Most reliable form of wireless technology used for the communication between the public safety networks is Land Mobile Radio System (LMRS). Digital Mobile Radio (DMR) and Project 25 (P-25) phase-1 are the part of Land Mobile Radio System (LMRS). Both DMR and P-25 (Phase-1) are designed to operate in the narrowband region of the frequency spectrum for providing uninterrupted voice and data communications to users. DMR use Time Division Multiple Access (TDMA) for voice and data transmission, whereas P-25 (Phase-1) uses Frequency division Multiple Access (FDMA) for voice transmission only. In terms of Spectrum efficiency DMR is more efficient then P-25 (Phase-1) but it cannot accommodate larger network coverage area for Data and Voice transmission. P-25 (Phase-1) repeater can provide a larger network coverage area for voice transmission only. In this paper Authors have evaluate the performance of both DMR and P-25 (Phase-1) systems with respect to the network coverage area and support for voice and data applications. Furthers Authors have perposed a solution to eliminate the drawbacks of DMR and P-25 (Phase-1) systems by using Long Term Evolution (LTE) smart network which offer eNodeB Radio Access Network (RAN) which can provide a dual platform for the convergence of both TDMA and FDMA transmission schemes.
 
Index Terms - Land Mobile Radio System (LMRS), Digital Mobile Radio (DMR), Time Division Multiple Access (TDMA), Frequency division Multiple Access (FDMA), Long Term Evolution (LTE), LTE eNodeB

Citation - A Qaddus. "Real Time Performance Analysis of Digital Mobile Radio (DMR) and APCO Project 25 (P-25) Radio Systems in Land Mobile Radio (LMR) Systems." International Journal of Computer Engineering and Information Technology 8, no. 3 (2016): 49-55.