Search results for "Enhancement"

Super-resolution-based magnification of endothelium cells from biomicroscope videos of the cornea

2018

We present a practical, robust, and effective pipeline to compute a high-resolution (HR) image of the corneal endothelium starting from a low-resolution (LR) video sequence obtained with a general purpose slit lamp biomicroscope. An image quality typical of dedicated and more expensive confocal microscopes is achieved via software magnification by exploiting information redundancy in the video sequence. In particular, the HR image is generated from the best LR frames, obtained by identifying the most suitable endothelium video subsequence using a support vector machine-based learning approach, followed by a robust graph-based frame registration. Results on long, real sequences show that the…

Texture Synthesis for Digital Restoration in the Bit-Plane Representation

2007

In this paper we propose a new approach to handle the problem of restoration of grayscale textured images. The purpose is to recovery missing data of a damaged area. The key point is to decompose an image in its bit-planes, and to process bits rather than pixels. We propose two texture synthesis methods for restoration. The first one is a random generation process, based on the conditional probability of bits in the bit-planes. It is designed for images with stochastic textures. The second one is a best-matching method, running on each bit-plane, that is well suited to synthesize periodic patterns. Results are compared with a state-of-the-art restoration algorithm.

Similarity in self-enhancement and self-transcendence values between young adults and their parents and friends

2012

This study investigates similarities between the 'self-enhancement' and 'self-transcendence' values of young adults and the corresponding values of their parents and friends, examining both mean level and correlational similarities. Participants included 193 Italian young adults along with their parents and friends (one male and one female) who each reported on their own self-enhancement and self-transcendence values. Results showed that young adults were more similar to their friends than to their parents on mean levels of values. Females reported valuing self-transcendence more and self-enhancement less than males. Considering correlational similarity, male young adults' self-transcendenc…

New Frontiers in the Treatment of Homozygous Familial Hypercholesterolemia.

2021

: Homozygous familial hypercholesterolemia (HoFH) is a rare genetic disorder. The most common cause is a mutation in both alleles of the gene encoding for the low-density lipoprotein (LDL) receptor, although other causative mutations have been identified. Complications of atherosclerotic cardiovascular disease are common in these patients; therefore, reducing the elevated LDL-cholesterol burden is critical in their management. Conventionally, this is achieved by patients initiating lipid-lowering therapy, but this can present challenges in clinical practice. Fortunately, novel therapeutic strategies have enabled promising innovations in HoFH treatment. This review highlights recent and ongo…

Signal Processing for Image Enhancement and Multimedia Processing

2008

Broadband photocurrent enhancement in a-Si:H solar cells with plasmonic back reflectors

2014

The authors acknowledge Francesco Ruffino for the AFM measurements. This work was funded by the EU FP7 Marie Curie Action FP7-PEOPLE-2010-ITN through the PROPHET project (Grant No. 264687), the bilateral CNR/AVCR project "Photoresponse of nanostructures for advanced photovoltaic applications", the MIUR project Energetic (Grant no. PON02_00355_3391233) and by the Portuguese Science Foundation (FCT-MEC) through the Strategic Project PEst-C/CTM/LA0025/2013-14 and the research project PTDC/CTM-ENE/2514/2012. Plasmonic light trapping in thin film silicon solar cells is a promising route to achieve high efficiency with reduced volumes of semiconductor material. In this paper, we study the enhance…

Timing performance of the silicon PET insert probe

2010

Simulation indicates that PET image could be improved by upgrading a conventional ring with a probe placed close to the imaged object. In this paper, timing issues related to a PET probe using high-resistivity silicon as a detector material are addressed. The final probe will consist of several (four to eight) 1-mm thick layers of silicon detectors, segmented into 1 x 1 mm(2) pads, each pad equivalent to an independent p + nn+ diode. A proper matching of events in silicon with events of the external ring can be achieved with a good timing resolution. To estimate the timing performance, measurements were performed on a simplified model probe, consisting of a single 1-mm thick detector with 2…

Overcoming the barrier of CD8+ T cells: Two types of nano-sized carriers for siRNA transport

2019

Abstract Bioengineering immune cells via gene therapy offers treatment opportunities for currently fatal viral infections. Also cell therapeutics offer most recently a breakthrough technology to combat cancer. These primary human cells, however, are sensitive to toxic influences, which make the utilization of optimized physical transfection techniques necessary. The otherwise commonly applied delivery agents such as LipofectamineⓇ or strongly cationic polymer structures are not only unsuitable for in vivo experiments, but are also highly toxic to immune cells. This study aimed to improve the design of polymeric carrier systems for small interfering RNA, which would allow efficient internali…

UNA CONFIGURAZIONE SMART HERITAGE PER I CONTESTI EURO-MEDITERRANEI

La ricerca intende proporre una strategia urbana e tecnologica costituita da elementi smart che sviluppino una capacità di progettazione tecnologica integrata su scala urbana ed edilizia, sovrapponendo al disegno della città smart contemporanea quella della valorizzazione del patrimonio culturale attraverso le nuove Tecnologie dell’Informazione e della Comunicazione (TIC). Attraverso la schedatura di alcune esperienze smart di appendici che raccolgono le strategie urbane di recupero più significative e di un glossario finale con i termini ricorrenti nel settore, la Dottoranda propone un punto di vista del modello Smart City che si lega al tema della valorizzazione urbana fornendo a pianific…

Do Narcissists Self-Enhance? Disentangling the Associations Between Narcissism and Positive Versus Enhanced Self-Views Across Aspects of Narcissism, …

2020

Across psychological disciplines, grandiose narcissism and self-enhancement have been treated as two closely related constructs. However, empirical research has not yielded conclusive insights about their association: It is currently unclear whether self-views of narcissistic individuals are more enhanced, in comparison with some criterion value, or whether their self-views are simply more positive than those of less narcissistic individuals. We aimed to clarify this fundamental issue with regard to (a) different aspects of narcissism (narcissistic admiration and rivalry), (b) different content domains of self-views (agency and communion), and (c) different criteria against which self-perc…