A quality integrated spectral minutiae fingerprint recognition system

Many fingerprint recognition systems are based on minutiae matching. However, the recognition accuracy of minutiae-based matching algorithms is highly dependent on the fingerprint minutiae quality. Therefore, in this paper, we introduce a quality integrated spectral minutiae algorithm, in which the minutiae quality information is incorporated to enhance the performance of the spectral minutiae fingerprint recognition system. In our algorithm, two types of quality data are used. The first is the minutiae reliability, expressing the probability that a given point is indeed a minutia; the second is the minutiae location accuracy, quantifying the error on the minutiae location. We integrate these two types of quality information into the spectral minutiae representation algorithm and achieve a decrease of 1% in equal error rate in the experiment

When I Look Into Your Eyes

https://digitalcommons.library.umaine.edu/mmb-vp/2675/thumbnail.jp

Spectral representation of fingerprints

Most fingerprint recognition systems are based on the use of a minutiae set, which is an unordered collection of minutiae locations and directions suffering from various deformations such as translation, rotation and scaling. The spectral minutiae representation introduced in this paper is a novel method to represent a minutiae set as a fixed-length feature vector, which is invariant to translation, and in which rotation and scaling become translations, so that they can be easily compensated for. These characteristics enable the combination of fingerprint recognition systems with a template protection scheme, which requires a fixed-length feature vector. This paper introduces the idea and algorithm of spectral minutiae representation. A correlation based spectral minutiae\ud matching algorithm is presented and evaluated. The scheme shows a promising result, with an equal error rate of 0.2% on manually extracted minutiae

Longitudinal effects of metabolic syndrome on Alzheimer and vascular related brain pathology.

Background/aimsThis study examines the longitudinal effect of metabolic syndrome (MetS) on brain-aging indices among cognitively normal (CN) and amnestic mild cognitive impairment (aMCI) groups [single-domain aMCI (saMCI) and multiple-domain aMCI (maMCI)].MethodsThe study population included 739 participants (CN = 226, saMCI = 275, and maMCI = 238) from the Alzheimer's Disease Neuroimaging Initiative, a clinic-based, multi-center prospective cohort. Confirmatory factor analysis was employed to determine a MetS latent composite score using baseline data of vascular risk factors. We examined the changes of two Alzheimer's disease (AD) biomarkers, namely [(18)F]fluorodeoxyglucose (FDG)-positron emission tomography (PET) regions of interest and medial temporal lobe volume over 5 years. A cerebrovascular aging index, cerebral white matter (cWM) volume, was examined as a comparison.ResultsThe vascular risk was similar in all groups. Applying generalized estimating equation modeling, all brain-aging indices declined significantly over time. Higher MetS scores were associated with a faster decline of cWM in the CN and maMCI groups but with a slower decrement of regional glucose metabolism in FDG-PET in the saMCI and maMCI groups.ConclusionAt the very early stage of cognitive decline, the vascular burden such as MetS may be in parallel with or independent of AD pathology in contributing to cognitive impairment in terms of accelerating the disclosure of AD pathology

Cooperative Communications with HARQ in a Wireless Mesh Network Based on 3GPP LTE

Publication in the conference proceedings of EUSIPCO, Bucharest, Romania, 201

Public participation GIS can help assess multiple dimensions of environmental justice in urban green and blue space planning

In the last two decades, there has been an exponential increase in application of public participation GIS (PPGIS) methods to urban green and blue space (UGBS) planning. However, integrating different elements of environ-mental justice in PPGIS research is still in its infancy, especially in regards to the deep and less visible issues related to recognition and participation of different groups in local green space planning and management. Here we present a new method for assessing perceived recognition and procedural justice with respect to UGBS in the Amager island of Copenhagen, Denmark. We collected survey data together with 2187 place-based values and preferences from 298 local residents. Using Exploratory Factor Analysis, we classified respondents in four clusters representing low to high perceived recognition and procedural justice. We then examined how these clusters relate to socio-demographics and the spatial distribution of mapped values and preferences. Results indicated no significant differences in terms of income and age between clusters. However, there was clear variation in the spatial distribution and type of values and preferences respondents from different clusters assigned, particularly for those who feel unrecognized and do not participate in local environmental decision -making compared to all other groups. In addition, gender had a significant effect on the perceptions of recog-nition and procedure. Female respondents scored lower on procedural justice than male and mapped landscape values and preferences closer to home than males, thus suggesting that gender inequalities can be deeply embedded in everyday public spaces and practices. Planning inclusive and environmentally just UGBS requires not only incorporating such gender perspectives, but a more flexible, intersectional and relational understanding of space that reflects the everyday needs of different and marginalized groups

Public participation GIS can help assess multiple dimensions of environmental justice in urban green and blue space planning

In the last two decades, there has been an exponential increase in application of public participation GIS (PPGIS) methods to urban green and blue space (UGBS) planning. However, integrating different elements of environ-mental justice in PPGIS research is still in its infancy, especially in regards to the deep and less visible issues related to recognition and participation of different groups in local green space planning and management. Here we present a new method for assessing perceived recognition and procedural justice with respect to UGBS in the Amager island of Copenhagen, Denmark. We collected survey data together with 2187 place-based values and preferences from 298 local residents. Using Exploratory Factor Analysis, we classified respondents in four clusters representing low to high perceived recognition and procedural justice. We then examined how these clusters relate to socio-demographics and the spatial distribution of mapped values and preferences. Results indicated no significant differences in terms of income and age between clusters. However, there was clear variation in the spatial distribution and type of values and preferences respondents from different clusters assigned, particularly for those who feel unrecognized and do not participate in local environmental decision -making compared to all other groups. In addition, gender had a significant effect on the perceptions of recog-nition and procedure. Female respondents scored lower on procedural justice than male and mapped landscape values and preferences closer to home than males, thus suggesting that gender inequalities can be deeply embedded in everyday public spaces and practices. Planning inclusive and environmentally just UGBS requires not only incorporating such gender perspectives, but a more flexible, intersectional and relational understanding of space that reflects the everyday needs of different and marginalized groups.Peer reviewe

A Tale of Two Protected Areas:“Value and Nature Conservation” in Comparable National Parks in Estonia and Russia

This study explores how local communities reflect on institutional frameworks and protected area governance in two national parks (NPs) with similar nature values in Estonia and Russia, and aims to understand the role of value systems in these interactions. It is based on 50 in-depth interviews with a broad range of stakeholders, and a desktop analysis of relevant regulation and plans. Interview questions reflect on various aspects of well-being (including fairness of governance solutions), awareness of NPs’ function and restrictions, related value aspects, and covered basic personal data needed to interpret the interviews. The study reconfirms the pivotal role of social justice as a driver of wellbeing. In particular, it articulates the significance of value systems playing the role of filters between governance inputs and specific management activities of communities. It underlines the vulnerability of such systems at a community level, most of all to the impacts related to various instances of “centralization”. They are manifested through the choice of restrictive measures and top-down arrangements at the expense of transparency and inclusiveness (in Russia), as well as through the removal of governance autonomy from NPs and transferring monitoring and enforcement functions to local communities without clear mandates or sufficient capacity (in Estonia)

Lifetime health effects and costs of diabetes treatment

BACKGROUND: This article presents cost-effectiveness analyses of the major diabetes interventions as formulated in the revised Dutch guidelines for diabetes type 2 patients in primary and secondary care. The analyses consider two types of care: diabetes control and the treatment of complications, each at current care level and according to the guidelines. METHODS: A validated probabilistic diabetes model describes diabetes and its complications over a lifetime in the Dutch population, computing quality-adjusted life years and medical costs. Effectiveness data and costs of diabetes interventions are from observational current care studies and intensive care experiments. Lifetime consequences of in total sixteen intervention mixes are compared with a baseline glycaemic control of 10% HBA1C. RESULTS: The interventions may reduce the cumulative incidence of blindness, lower-extremity amputation, and end-stage renal disease by >70% in primary care and >60% in secondary care. All primary care guidelines together add 0.8 quality-adjusted life years per lifetime. CONCLUSION: In case of few resources, treating complications according to guidelines yields the most health benefits. Current care of diabetes complications is inefficient. If there are sufficient resources, countries may implement all guidelines, also on diabetes control, and improve efficiency in diabetes care