scholarly journals Biometric Quality and its Impact on Template Ageing in a Longitudinal Fingerprint Study

2019 ◽  
Author(s):  
Henry Harvey
Keyword(s):  
Biometric Quality

scholarly journals An Overview of Multimodal Biometrics Using the Face and Ear

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Yichao Ma ◽  
Zengxi Huang ◽  
Xiaoming Wang ◽  
Kai Huang
Keyword(s):  
Rapid Development ◽  
3D Structure ◽  
Fusion Rule ◽  
Identification System ◽  
Multimodal Biometrics ◽  
Adaptive Fusion ◽  
The Face ◽  
Physiological Structure ◽  
Biometric Quality ◽  
Improved Accuracy

In the recent years, we have witnessed the rapid development of face recognition, though it is still plagued by variations such as facial expressions, pose, and occlusion. In contrast to the face, the ear has a stable 3D structure and is nearly unaffected by aging and expression changes. Both the face and ear can be captured from a distance and in a nonintrusive manner, which makes them applicable to a wider range of application domains. Together with their physiological structure and location, the ear can readily serve as supplement to the face for biometric recognition. It has been a trend to combine the face and ear to develop nonintrusive multimodal recognition for improved accuracy, robustness, and security. However, when either the face or the ear suffers from data degeneration, if the fusion rule is fixed or with inferior flexibility, a multimodal system may perform worse than the unimodal system using only the modality with better quality sample. The biometric quality-based adaptive fusion is an avenue to address this issue. In this paper, we present an overview of the literature about multimodal biometrics using the face and ear. All the approaches are classified into categories according to their fusion levels. In the end, we pay particular attention to an adaptive multimodal identification system, which adopts a general biometric quality assessment (BQA) method and dynamically integrates the face and ear via sparse representation. Apart from a refinement of the BQA and fusion weights selection, we extend the experiments for a more thorough evaluation by using more datasets and more types of image degeneration.

Performance of Biometric Quality Measures

2007 ◽  
Vol 29 (4) ◽  
pp. 531-543 ◽  
Author(s):  
Patrick Grother ◽  
Elham Tabassi
Keyword(s):  
Quality Measures ◽  
Biometric Quality

Face biometric quality assessment via light CNN

2018 ◽  
Vol 107 ◽  
pp. 25-32 ◽  
Author(s):  
Jun Yu ◽  
Kejia Sun ◽  
Fei Gao ◽  
Suguo Zhu
Keyword(s):  
Quality Assessment ◽  
Biometric Quality ◽  
Face Biometric

Multimodal Fusion of Face and Palm Using Local Color Binary Patterns and Haralick Features

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Vijeeta Patil ◽  
Shanta Kallur ◽  
Vani Hiremani
Keyword(s):  
The Other ◽  
Multimodal Fusion ◽  
Test Results ◽  
Principal Point ◽  
Local Color ◽  
Surface Data ◽  
Haralick Features ◽  
Palm Print ◽  
Feature Values ◽  
Biometric Quality

Face recognizable proof has drawn in numerous scientists because of its novel benefit, for example, non-contact measure for include obtaining. Varieties in brightening, posture and appearance are significant difficulties of face acknowledgment particularly when pictures are taken as dim scale. To mitigate these difficulties partially many exploration works have been completed by considering shading pictures and they have yielded better face acknowledgment rate. A strategy for perceiving face utilizing shading nearby surface highlights is depicted. Test results show that Face ID approaches utilizing shading neighborhood surface highlights astonishingly yield preferred acknowledgment rates over Face acknowledgment approaches utilizing just shading or surface data. Especially, contrasted and grayscale surface highlights, the proposed shading neighborhood surface highlights can give great coordinating with rates to confront pictures taken under extreme varieties in enlightenment and furthermore for low goal face pictures. The other biometric framework utilizes palmprint as quality for the recognizable proof and validation of people. The principal point is to extract Haralick highlights and utilization of probabilistic neural organizations for confirmation utilizing palmprint biometric quality. PolyUdatabase tests are taken from around 200 clients every client's 2 examples are gained. This palm print biometric recognizes the phony (fake) palmprint made of POP (Plaster of paris) and separates among living and non-living dependent on the entropy highlight. Test results portray that the eleven Haralick feature values are acquired in execution stage and productive precision is accomplished.

scholarly journals RENDIMENTO DE ROSAS CULTIVADAS EM AMBIENTE PROTEGIDO SOB DIFERENTES NÍVEIS DE IRRIGAÇÃO

Irriga ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 14
Author(s):  
Eduardo Carvalho Oliveira ◽  
Jacinto De Assunção Carvalho ◽  
Elka Fabiana Aparecida Almeida ◽  
Fátima Conceição Rezende ◽  
Simone Novaes Reis ◽  
...  
Keyword(s):  
Water Deficit ◽  
Block Design ◽  
Irrigation Management ◽  
Agricultural Practices ◽  
Water Deficit Stress ◽  
Cut Flowers ◽  
Water Pumping ◽  
Randomized Block Design ◽  
Biometric Quality ◽  
E Mail

RENDIMENTO DE ROSAS CULTIVADAS EM AMBIENTE PROTEGIDO SOB DIFERENTES NÍVEIS DE IRRIGAÇÃO  EDUARDO CARVALHO OLIVEIRA1; JACINTO DE ASSUNÇÃO CARVALHO1; FÁTIMA CONCEIÇÃO REZENDE1; ELKA FABIANA APARECIDA ALMEIDA2; SIMONE NOVAES REIS2 E SÔNIA NAOMI MIMURA2 1Universidade Federal de Lavras, Departamento de Engenharia, Campus Universitário, Caixa Postal 3037, CEP 37200-000, Lavras, MG. e-mail: [email protected], [email protected], [email protected] de Pesquisa Agropecuária de Minas Gerais, Unidade Regional EPAMIG Sul de Minas, Av. Visconde do Rio Preto, s/n, Vila São Paulo, CEP: 36.301-360, São João Del Rei, MG. e-mail: [email protected], [email protected], [email protected]  1 RESUMO A floricultura de corte tem nas rosas a sua principal exploração no Brasil e possui vasta demanda por pesquisas voltadas à produtividade e qualidade de hastes florais associadas ao adequado manejo da irrigação. Além disso, o manejo correto da irrigação está relacionado à utilização de práticas agrícolas adequadas, as quais se justificam com a redução de insumos como água, energia de bombeamento e fertilizantes. Assim, este trabalho objetivou avaliar o efeito de diferentes potenciais de água no solo sobre o rendimento e qualidade biométrica de hastes de rosas. O experimento foi realizado em casa de vegetação localizada na EPAMIG, em São João Del Rei - MG. Foi utilizado um delineamento em blocos casualizados, envolvendo seis potenciais de água no solo (-15, -30, -45, -60, -90 e -120 kPa) com cinco repetições. Os parâmetros avaliados foram: produtividade, comprimento e diâmetro das hastes e comprimento e diâmetro do botão floral. De forma geral, o déficit hídrico de até -120 kPa não interfere nas características qualitativas das hastes florais. Maiores produtividades são observadas para irrigações mais frequêntes, com -15 e -30 kPa.   Palavras-chave: floricultura, roseira, qualidade, manejo da irrigação, déficit hídrico.  OLIVEIRA, E. C.; CARVALHO, J. de A.; REZENDE, F. C.; ALMEIDA, E. F. A.; REIS, S. N.; MIMURA, S. N.ROSE YIELD CULTIVATED IN PROTECTED ENVIRONMENT UNDER DIFFERENT IRRIGATION LEVELS  2 ABSTRACT Roses lead exploitation of cut flowers in Brazil and demand. The present research focused on flower stems productivity and quality associated to adequate irrigation management. Moreover, the correct management of irrigation is related to the use of appropriate agricultural practices, which are justified by reducing inputs such as water, pumping energy and fertilizers. This work had the aim of assessing the effect of water deficit stress across different soil water potentials on yield and biometric quality of stems roses. The experiment was conducted in a greenhouse located at EPAMIG, São João Del Rei, MG. A randomized block design involving six water potential on soil (-15, -30, -45, -60, -90 and -120 kPa) with five replications was used. Parameters assessed were: yield, length and diameter of the stems, length and diameter of the rose bud. In general, the water deficit of up to -120 kPa does not interfere with qualitative parameters of the stem buds. Higher yields are observed for more frequent irrigations, with -15 and -30 kPa. Keywords: floriculture, rosebush, quality, irrigation management, water deficit. 

scholarly journals Relevance of Variations in the Opposing Dentition for the Functionality of Fixed and Removable Partial Dentures: A Systematic Review

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Bernhard Pommer ◽  
Martin Krainhöfner ◽  
Georg Watzek ◽  
Gabor Tepper ◽  
Charalabos-Markos Dintsios
Keyword(s):  
Systematic Review ◽  
Survival Rates ◽  
Poor Quality ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Confounding Variables ◽  
Removable Prosthesis ◽  
Biometric Quality ◽  
Quality Tool ◽  
Publication Quality

The aim of this systematic review was to evaluate the functionality of fixed and removable partial dentures as test interventions in relation to variations in the opposing dentition and their prosthetic restoration. The abstracts identified in the respective databases were screened independently by two investigators. RCTs and uncontrolled studies were considered, provided the patients were included consecutively and the confounding variables were adequately monitored. Seventeen papers were included. The study and publication quality was assessed using a “biometric quality” tool showing an overall poor quality. The reported outcomes, such as survival rates, were in each case obtained from a single study. Two possible trends could be deduced for the endpoint longevity: (a) the first trend in favor of removable partial dentures, compared to fixed partial dentures, with a fully edentulous opposing arch fitted with a removable prosthesis; (b) the second trend in favor of implant-supported partial dentures, compared to conventionally fixed partial dentures, with natural opposing dentition or with a removable partial denture in the opposing arch. No evidence could be generated as to whether, and if so how, variations in the opposing dentition have a bearing on the decision to fit a partially edentulous arch with a fixed or removable partial denture.

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