Search results for "Equalization"
showing 10 items of 24 documents
Image Enhancement Algorithm for Optical Microstructural Characterization of Shape Memory TiNi Friction Stir Processed
2017
Abstract A key topic regarding TiNi alloys concerns the possibility to attain junctions that preserve the shape memory properties of material. Experimental tests, previously performed on TiNi sheet friction stir processed, have highlighted the need to develop an appropriate image analysis method to quantify the various phases percentages present in the characteristics zones of Friction Stir Welding process. A proper Image Processing procedure has been performed in order to quantify the amount of the martensitic phase and to detect its morphology modification along to the processed region. Particularly each micrographic image, firstly, has been denoised using the 2D Wavelet transform techniq…
MUNICIPAL FINANCE EQUALIZATION PROCESS IN LATVIA
2012
The municipal finance equalization calculations in Latvia presently take into account the demographic indicators, but they do not depict accurately the municipal finance requirements; in order to precisely determine these numbers, other consequential criteria should be accounted for as well, such as infrastructure or other aspects characterising the peculiarities or needs of a certain territory. Inclusion of these new criteria in the process of determining the need for financing could serve as the basis for improvements to the existing system. The purpose of this article is to analyze the municipal finance situation in Latvia, starting with 1998, to show the differences in their income and …
Fuzzy C-Means Segmentation on Brain MR Slices Corrupted by RF-Inhomogeneity
2007
Brain MR Images corrupted by RF-Inhomogeneity exhibit brightness variations in such a way that a standard Fuzzy C-Means (fcm) segmentation algorithm fails. As a consequence, modified versions of the algorithm can be found in literature, which take into account the artifact. In this work we show that the application of a suitable pre-processing algorithm, already presented by the authors, followed by a standard fcm segmentation achieves good results also. The experimental results ones are compared with those obtained using SPM5, which can be considered the state of the art algorithm oriented to brain segmentation and bias removal.
Mathematical Morphology for Color Images: An Image-Dependent Approach
2012
This paper proposes one possibility to generalize the morphological operations (particularly, dilation, erosion, opening, and closing) to color images. First, properties of a desirable generalization are stated and a brief review is done on former approaches. Then, the method is explained, which is based on a total ordering of the colors in an image induced by its color histogram; this is valid for just one image and may present problems in smoothly coloured images. To solve these drawbacks a refinement consisting of smoothing the histogram and using a joint histogram of several images is presented. Results of applying the so-defined morphological operations on several sets of images are sh…
A False-Positive FFR: Drift and Failure to Equalize may cause Troubles!
2016
The results of FFR measurements determine further therapies. Therefore it is important that all steps necessary to obtain correct data are respected. We show the effect of an incorrect equalization.
Rising Educational Attainment and Opportunity Equalization: Evidence from France
2020
Educational policies are widely recognized as the means par excellence to equalize opportunities among children with different social and family backgrounds and to promote intergenerational mobility. In this chapter, we focus on the French case and we apply the opportunity equalization criterion proposed by Andreoli, Havnes, and Lefranc (2019) for evaluating the effect of rising compulsory schooling requirements in secondary education. Our results show that such education expansion has a limited redistributive effect on students’ earnings distribution. Nonetheless, we provide evidence of opportunity equalization among groups of students defined by family background circumstances.
Energy Equalization and the Case of the “nZEB Hotels”
2020
Nowadays, energy equalization is one of the many issues concerning the energy policies on the urban scale and in the perspective of reducing the Urban Heat Island effects (UHI-e). The different economic-financial profiles of the interventions implemented in the buildings having a wide range of climatic locations, typological arrangements, architectural-historical constraints, need to be coordinated within unitary local energy-environmental policies inspired by economic-financial as well as environmental issues. The renovation of existing hotels to achieve a nearly Zero-Energy performance is one of the goals of the 2050 EU’s energy policy. This paper presents the nZEB retrofit case of an exi…
Valutazioni interscalari nel processo perequativo del PRG di Siracusa
2016
La questione abitativa è tornata ad essere cruciale per assicurare una maggiore equità sociale, aumentando la coesione sociale e riducendo le diseguaglianze all’interno dei sistemi metropolitani o territoriali che, nell’attuale congiuntura di grave crisi economica, devono comunque rispondere alle sfide globali di sviluppo, innovazione e sostenibilità. Questo studio si propone di costruire un sistema di conoscenze sulle condizioni di accesso alla casa a scala territoriale attraverso cui individuare le criticità locali dei problemi abitativi che potrebbero essere risolti attraverso i tradizionali strumenti di pianificazione o attraverso nuove pratiche di Social Housing che coinvolgono soggett…
A blind Robust Image Watermarking Approach exploiting the DFT Magnitude
2019
Due to the current progress in Internet, digital contents (video, audio and images) are widely used. Distribution of multimedia contents is now faster and it allows for easy unauthorized reproduction of information. Digital watermarking came up while trying to solve this problem. Its main idea is to embed a watermark into a host digital content without affecting its quality. Moreover, watermarking can be used in several applications such as authentication, copy control, indexation, Copyright protection, etc. In this paper, we propose a blind robust image watermarking approach as a solution to the problem of copyright protection of digital images. The underlying concept of our method is to a…
Fair Planning and Affordability Housing in Urban Policy. The Case of Syracuse (Italy)
2016
Equalization can be implemented in the planning process by means of several tools. The Syracuse’s Master Plan has used “urban negotiation” to obtain land for facilities and public infrastructure in different urban areas basing on the rule of the transfer of a portion of land in return for the building permission for the remaining part of each property to be developed. The Master Plan also aimed at providing social housing because the economic crisis has amplified the gap between housing market prices and household income. This study proposes an equalization and compensation model to support the urban negotiation for providing the indexes of a fair and convenient development of several inter…