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Keyword: Wavelets
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Open AccessArticle
10 Pages, 4,183 KB Download PDF

A Psychovisual Optimization of Wavelet Foveation-Based Image Coding and Quality Assessment Based on Human Quality Criterions

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 225–234, 2020; DOI: 10.25046/aj050229
Abstract:

In the present article, we introduce a foveation-based optimized embedded and its optimized version image coders thereafter called VOEFIC/MOEFIC and its related foveation wavelet visible difference predictor FWVDP coding quality metric. It advances a visually advanced foveal weighting mask that regulates the wavelet-based image spectrum before its encoding by the SPIHT encoder. It intends to…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 1,108 KB Download PDF

Development of Wavelet-Based Tools for Event Related Potentials’ N400 Detection: Application to Visual and Auditory Vowelling and Semantic Priming in Arabic Language

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 414–420, 2019; DOI: 10.25046/aj040450
Abstract:

Neurological signals are generally very weak in amplitude and strongly noisy. As a result, one of the major challenges in neuroscience is to be able to eliminate noise and thus exploit the maximum amount of information contained in neurological signals (EEG…). In this paper, we aimed at studying the N400 wave of the Event-Related Potentials…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Biomedical Engineering (EBI))
Open AccessArticle
12 Pages, 1,500 KB Download PDF

FPGA Implementation of Ultra-High Speed and Configurable Architecture of Direct/Inverse Discrete Wavelet Packet Transform Using Shared Parallel FIR Filters

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 116–127, 2018; DOI: 10.25046/aj030516
Abstract:

This work presents new pipeline-parallel, generic and configurable parallel hardware architectures for the Direct/Inverse Wavelet Packet Transform (DWPT/IDWPT) independent of any specific family of wavelets, implemented in FPGA technology using a parallel architecture of direct FIR filter. We propose in the following paper, new P-parallel structures for the DWPT and IDWPT transforms based on the…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Electronic Engineering (EEE))
Open AccessArticle
12 Pages, 2,619 KB Download PDF

Deep venous thrombus characterization: ultrasonography, elastography and scattering operator

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 48–59, 2017; DOI: 10.25046/aj020308
Abstract:

A thrombus or a blood clot is the result of blood coagulation which is a natural process to prevent bleeding. An inappropriate formation of a thrombus in a deep vein is known as Deep Venous Thrombosis (DVT). The main complication of a DVT is a Pulmonary Embolism (PE) which occurs when a thrombus breaks loose…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Radiology (RIO))

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