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129 articles for “signal processing”
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Research ArticleOpen accessIn the keywordsDenoising Methods for MRI ImagerySamuel KozaitisThere are several new denoising algorithms that may be useful for magnetic resonance imaging. We compared the performance of some of the latest denoising algorithms with those that have been developed specifically for MRI imagery. We found that the latest approaches show impressive performance in terms of mean squared error, but a measure based on perceptual quality may be needed … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 3 · 30 Aug 2017 · 7,478 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparison of Denoising Algorithms for Urban ScenesSamuel KozaitisSeveral new denoising algorithms have recently been presented that display comparable performance and it is unclear which provide the best results. We used the practical example of urban scenes to compare two of the top-performing algorithms. We found that when using the practical case of quantizing input and output imagery, the results were different than when using the conventional method … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 20 Jun 2017 · 7,849 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetection and Diagnostic Approach of COVID-19 Based on Cough Sound AnalysisMuzhir Shaban Al-Ani, Thabit Sultan Mohammed, Awni Ismail Sultan et al.Coronavirus (COVID-19) started at the end of 2019 and then spread out around the world as a pandemic at the beginning of 2020. At that time, researchers began to work on detecting and diagnosing this virus, where many methods have been applied for this reason. This study focuses on how to diagnose coronavirus through patients’ cough. Accordingly, real samples were … …Journal of Computer Science, Vol. 17, Issue 6 · 29 Jun 2021 · 7,803 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDesign of Low- Power High-Speed Error Tolerant Shift and Add MultiplierK. N. Vijeyakumar, V. Sumathy, Sriram Komanduri, C. Chrisjin Gnana SujiProblem Statement: In this study, we had proposed a low power architecture for high speed multiplication. Approach: The modifications to the conventional shift and add multiplier includes introduction of modified error tolerant technique for addition and enabling of adder cell by current multiplication bit of the multiplier constant. The proposed architecture enables the removal of input multiplexer, switching of adder … …Journal of Computer Science, Vol. 7, Issue 12 · 18 Oct 2011 · 7,155 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSpartan-3AN Field Programmable Gate Arrays Truncated Multipliers Delay StudyMohammed H. Al MijalliProblem statement: The image processing applications, such as MPEG video compression used in CT scan frames requires real time conditions and the algorithms should be verified and optimized before implementation which cannot be done with Application Specific Integrated Circuits (ASICs) because they are not reconfigurable and cost is very high. Approach: The FPGA is a viable technology that could be … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 6,428 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Frame Study for Post-Processing Analysis on System Behavior: A Case Study of Deadline Miss DetectionJunghee Lee, Jongman KimProblem statement: A lot of data can be obtained by system simulation using transaction level models without affecting the performance of the system. Due to huge amount of the raw data, we often need to post-process them to extract valuable information. Profiling capabilities of commercial tools provide predefined functionalities and don’t allow users to add or modify for their own … …Journal of Computer Science, Vol. 6, Issue 12 · 22 Nov 2010 · 6,741 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Study of Fatigue Data Editing using the Short-Time Fourier Transform (STFT)S. Abdullah, C. K.E. Nizwan, M. Z. NuawiThis study presents the development of the STFT-based fatigue data editing technique that will be used as a tool to accelerate for accelerating fatigue testing. This technique was performed by removing low amplitude cycles contained in the original signal in order to produce a shortened signal using the Short-Time Fourier Transform (STFT) parameter. The effectiveness of STFT power spectrum was … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 8,422 accessesView PDFCite
Research ArticleOpen accessIn the keywordsApplying Software Engineering Methodology for Designing Biomedical Software Devoted To Electronic InstrumentationGilsa Aparecida de Lima Machado, Patricia Mara Danella Zacaro, Alderico Rodrigues de Paula Junior, Marcelo Lopes de Oliveira e SouzaProblem statement: Significant effort goes into the development of biomedical software, which is integrated with computers/processors, sensors and electronic instrumentation devoted to a specific application. However, the scientific work on electronic instrumentation controlled by biomedical software has not emphasized software development, instead focusing mainly on electronics engineering. The development team is rarely composed of Software Engineering (SE) experts. Usually, a … …Journal of Computer Science, Vol. 8, Issue 10 · 23 Aug 2012 · 6,971 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDesign and Field Programmable Gate Array Implementation of Basic Building Blocks for Power-Efficient Baugh-Wooley MultipliersMuhammad H. Rais, Bandar M. Al-Harthi, Saad I. Al-Askar, Fahad K. Al-HusseinProblem statement: As growing demands on portable computing and communication systems, the power-efficient multipliers play an important role. In these multipliers basic multiplication follows the Baugh-Wooley algorithms and can easily be implemented using Field Programmable Gate Array (FPGA) devices because the development cost for Application Specific Integrated Circuits (ASICs) are high. These algorithms should be verified and optimized before implementation. … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,123 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Arabic Text-To-Speech System Based on Artificial Neural NetworksGhadeer Al-Said, Moussa AbdallahProblem statement: With the rapid advancement in information technology and communications, computer systems increasingly offer the users the opportunity to interact with information through speech. The interest in speech synthesis and in building voices is increasing. Worldwide, speech synthesizers have been developed for many popular languages English, Spanish and French and many researches and developments have been applied to those … …Journal of Computer Science, Vol. 5, Issue 3 · 31 Mar 2009 · 7,368 accessesView PDFCite