Assessment of image quality based on structural information is a relevant topic in the image processing field. A new method to assess image quality is presented. It is based on the comparison of first and second order moments of the local variance distribution of two images. This new quality index is better suited to assess the non-stationarity of images, therefore it explicitly focuses on the ...

In the Laboratory of Communications and Telematics (LCT) of the University of Coimbra researchers have developed a novel, adaptive class-based QoS framework (LCT-QoS). In contrast to common, static resource allocation the core concept behind this approach is a dynamic resource distribution based on delay and loss measurements. As a further step towards a complete framework, currently research i...

the article by cheri wilson, “patient safety and healthcare quality: the case for language access”, highlights 
the challenges of providing culturally and linguistically appropriate services (clas) to patients with 
limited english proficiency (lep). as the us pursues high-value, high-performance healthcare, our ability 
to meet the needs of our most vulnerable will determine whether we succeed...

The motivation behind model-driven software development is to move the focus of work from programming to solution modeling. The model-driven approach has a potential to increase development productivity and quality by describing important aspects of a solution with more human-friendly abstractions and by generating common application fragments with templates. For this vision to become reality, ...

As model transformations are often considered the “heart and soul” of Model-Driven Engineering (MDE), the scalability of model transformations is vital for the scalability of MDE approaches as a whole. The existing research on scalable transformations has largely focused on performance behavior if the involved input models grow in size. In this work, we address a second key dimension for the pr...

In this paper we examine the transformation mapping mechanisms required in synchronizing virtual machine (VM) log audit data for the system administrator environment. We explain the formal constraints that are required by the transformation mapping process between the source and target log schemas for these VMs. We discuss the practical considerations of using these formalisms in establishing t...

Software is pervading our society more and more and is becoming increasingly complex. At the same time, software quality demands remain at the same, high level. Model-driven engineering (MDE) is a software engineering paradigm that aims at dealing with this increasing software complexity and improving productivity and quality. Models play a pivotal role in MDE. The purpose of using models is to...

In a Model Driven Architecture (MDA) software development process, models are repeatedly transformed to other models in order to finally achieve a set of models with enough details to implement a system. Generally, there are multiple ways to transform one model into another model. Alternative target models differ in their quality properties and the selection of a particular model is determined ...

This paper addresses the principles, implementation and evaluation of wavelet transformation based image fusion. 2-D discrete wavelet transformation is presented concisely to facility the understanding of the wavelet based image fusion method. To best retain the quality of the input images, we propose a strategy that minimizes the necessary resampling operations to limit potential image quality...