Opponent Center-Surround Contrast: Colour to Grey Conversion

2020 ◽  
Vol 2020 (1) ◽  
pp. 105-108
Author(s):  
Ali Alsam
Keyword(s):  
Evolutionary Algorithms ◽  
Three Dimensional ◽  
The State ◽  
Colour Space ◽  
Vision Science ◽  
State Of Art ◽  
Over Time

Vision is the science that informs us about the biological and evolutionary algorithms that our eyes, opticnerves and brains have chosen over time to see. This article is an attempt to solve the problem of colour to grey conversion, by borrowing ideas from vision science. We introduce an algorithm that measures contrast along the opponent colour directions and use the results to combine a three dimensional colour space into a grey. The results indicate that the proposed algorithm competes with the state of art algorithms.

scholarly journals Algoritmos de desplazamiento de fase de siete cuadros para la perfilometría tridimensional usando proyección de franjas y cómputo suave

2019 ◽  
pp. 1-8
Author(s):  
Jose Juan Cruz-Landeros ◽  
Juan Francisco Mosiño ◽  
Alicia Martínez-Rebollar ◽  
María del Rosario Baltazar-Flores
Keyword(s):  
Soft Computing ◽  
Three Dimensional ◽  
The State ◽  
Surface Imaging ◽  
Phase Errors ◽  
State Of Art ◽  
Dimensional Surface

In this paper, we present a set of seven-frame algorithms for the phase shifthing profilometry and their application for the three-dimensional surface imaging using soft computing. This set obtained generate the most common seven-frame algorithms in the state of art. The algorithms are analized for the compensation of common errors such as phase shifthing, phase errors because variation of light or bias.

scholarly journals Variable Torque Prescription: State of Art.

2015 ◽  
Vol 9 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Mariano Lacarbonara ◽  
Ettore Accivile ◽  
Maria R. Abed ◽  
Maria Teresa Dinoi ◽  
Annalisa Monaco ◽  
...  
Keyword(s):  
Clinical Case ◽  
State Of The Art ◽  
The State ◽  
Clinical Aspect ◽  
Suitable Tool ◽  
Torque Values ◽  
State Of Art ◽  
Over Time

The variable prescription is widely described under the clinical aspect: the clinics is the result of the evolution of the state-of-the-art, aspect that is less considered in the daily literature. The state-of-the-art is the key to understand not only how we reach where we are but also to learn how to manage propely the torque, focusing on the technical and biomechanical purpos-es that led to the change of the torque values over time. The aim of this study is to update the clinicians on the aspects that affect the torque under the biomechanical sight, helping them to understand how to managing it, following the “timeline changes” in the different techniques so that the Variable Prescription Orthodontic (VPO) would be a suitable tool in every clinical case.

Authorship/authoring possibilities in three-dimensional virtual worlds in education: The state of art from a systematic review

2016 ◽  
Author(s):  
Leander Cordeiro de Oliveira ◽  
Marilia Abrahao Amaral ◽  
Danubia Bueno Espindola ◽  
Regina Barwaldt ◽  
Silvia S. C. Botelho
Keyword(s):  
Systematic Review ◽  
Virtual Worlds ◽  
Three Dimensional ◽  
The State ◽  
State Of Art

Knowledge Management and Project Management in 3D

2013 ◽  
pp. 1452-1467
Author(s):  
Steve Russell
Keyword(s):  
Project Management ◽  
Three Dimensional ◽  
Knowledge Retention ◽  
The State ◽  
World Knowledge ◽  
Team Members ◽  
Work Activities ◽  
The Status ◽  
Common Purpose ◽  
Over Time

Project management can be improved using modern interfaces that more naturally show work situations. Employees have deep real world knowledge that can be exploited, and a sense of common purpose among team members that can be enhanced. But, project efforts are currently guided only with structured charts and diagrams that show participants the state of their team’s work activities. These charting tools have become more colorful and visually clear over time to reduce any uncertainty regarding task assignments, interdependencies, and any important schedule delays. However, a three dimensional environment extends the range of vision dramatically. Any team member can see what is currently being developed, the status of the process, and any pertinent actions needing focus, all in persistent and prominent wall displays. Discussions among remote collaborators are facilitated, focused on common views of pressing circumstances. Knowledge retention and transfer is more robust, and is illustrated in more compelling contexts keyed to current work activities. The immediacy of three dimensional world immersion will allow even forgetful workers to see at a glance the state of their contribution as well as the completion progress of those upon whom they depend.

Knowledge Management and Project Management in 3D

2010 ◽  
pp. 62-78
Author(s):  
Steve Russell
Keyword(s):  
Project Management ◽  
Three Dimensional ◽  
Knowledge Retention ◽  
The State ◽  
World Knowledge ◽  
Team Members ◽  
Work Activities ◽  
The Status ◽  
Common Purpose ◽  
Over Time

Project management can be improved using modern interfaces that more naturally show work situations. Employees have deep real world knowledge that can be exploited, and a sense of common purpose among team members that can be enhanced. But, project efforts are currently guided only with structured charts and diagrams that show participants the state of their team’s work activities. These charting tools have become more colorful and visually clear over time to reduce any uncertainty regarding task assignments, interdependencies, and any important schedule delays. However, a three dimensional environment extends the range of vision dramatically. Any team member can see what is currently being developed, the status of the process, and any pertinent actions needing focus, all in persistent and prominent wall displays. Discussions among remote collaborators are facilitated, focused on common views of pressing circumstances. Knowledge retention and transfer is more robust, and is illustrated in more compelling contexts keyed to current work activities. The immediacy of three dimensional world immersion will allow even forgetful workers to see at a glance the state of their contribution as well as the completion progress of those upon whom they depend.

Kidney transplantation in identical twins: the state of art and a case report

2019 ◽  
Vol 21 (4) ◽  
pp. 458-465
Author(s):  
A.I. Sushkov ◽  
◽  
T.A. Astrelina ◽  
E.V. Shestero ◽  
V.A. Nikitina ◽  
...  
Keyword(s):  
Kidney Transplantation ◽  
Case Report ◽  
The State ◽  
Identical Twins ◽  
State Of Art

Environmentalists, Nuclear Waste, and the Politics of Passive Exclusion in Germany

2001 ◽  
Vol 19 (4) ◽  
pp. 43-63 ◽  
Author(s):  
Christian Hunold
Keyword(s):  
Public Policy ◽  
Public Sphere ◽  
Nuclear Waste ◽  
Environmental Movement ◽  
The State ◽  
Radioactive Wastes ◽  
Liberal Democratic ◽  
Democratic State ◽  
Ecological Democracy ◽  
Over Time

In this essay I examine the dispute between the German GreenParty and some of the country’s environmental nongovernmentalorganizations (NGOs) over the March 2001 renewal of rail shipmentsof highly radioactive wastes to Gorleben. My purpose indoing so is to test John Dryzek’s 1996 claim that environmentalistsought to beware of what they wish for concerning inclusion in theliberal democratic state. Inclusion on the wrong terms, arguesDryzek, may prove detrimental to the goals of greening and democratizingpublic policy because such inclusion may compromise thesurvival of a green public sphere that is vital to both. Prospects forecological democracy, understood in terms of strong ecologicalmodernization here, depend on historically conditioned relationshipsbetween the state and the environmental movement that fosterthe emergence and persistence over time of such a public sphere.

To the theory analysis of tightness of tank of pressure testing

2019 ◽  
Vol 5 (4) ◽  
pp. 129-142
Author(s):  
Vladislav Sh. Shagapov ◽  
Ismagilyan G. Khusainov ◽  
Emiliya V. Galiakbarova ◽  
Zulfya R. Khakimova
Keyword(s):  
Relaxation Time ◽  
Three Dimensional ◽  
Petroleum Products ◽  
Technical Condition ◽  
Excess Pressure ◽  
Soil Parameters ◽  
Theory Analysis ◽  
Pressure Testing ◽  
Tank Pressure ◽  
Over Time

This article studies the process of relaxation of the pressure in a tank with the damaged area of the wall after pressure-testing. The authors use different methods for the diagnosis of the technical condition of objects of petroleum products storage. Pressure testing is one of nondestructive methods. The rate of pressure decrease is characteristic of the system tightness. This article studies the cases of ground and underground location of the tank. Pressure testing involves excess pressure inside of a tank and observing its decrease. Over time, one can assess the integrity of the system. This has required creating mathematical models to account the filtration of the liquid depending on the location of the tank. The results include the analytical solution of the task and the formulas for describing the dependence of the relaxation time of pressure in the tank from the liquid and soil parameters, geometry of the tank, and the damaged portion of the wall. The two- and three-dimensional cases of liquids filtration for the case of underground location of the tank were considered. The results of some numerical calculations of the dependence of reduction time and the time of half-life pressure from the area of the damaged portion of the wall were shown. The obtained solutions allow assessing the extent of the damaged area by the pressure testing with known values of tank, liquid, and soil.

Introduction

2018 ◽  
Author(s):  
Christine Cheng
Keyword(s):  
Theoretical Framework ◽  
Political Authority ◽  
The State ◽  
Dual Nature ◽  
For Profit ◽  
Business Interests ◽  
Local Populations ◽  
Post Conflict ◽  
Over Time ◽  
Commercial Environment

This chapter introduces the concept of extralegal groups and a theoretical framework for analyzing them—how they emerge, develop, and become entrenched over time. It explores their dual nature as threats to the state and as local statebuilders. Formally, an extralegal group is defined as a set of individuals with a proven capacity for violence who work outside the law for profit and provide basic governance functions to sustain its business interests. This framing shows how political authority can develop as a by-product of the commercial environment, even where the state has little or no presence. In post-conflict societies, the predatory nature and historical abuses of citizens conducted in the name of the state means that government is not always more trusted or better able to look after the interests of local populations than an extralegal group. Ultimately, extralegal groups blur the lines between the formal and informal; the licit and illicit.

scholarly journals A Review of Size Engineering-Enabled Electrocatalysts for Li–S Chemistry

2021 ◽  
Author(s):  
Xi Zhang ◽  
Yaping Zhang ◽  
xijun wei ◽  
Chaohui Wei ◽  
Yingze Song
Keyword(s):  
Energy Density ◽  
High Energy ◽  
The State ◽  
High Energy Density ◽  
State Of Art

Li–S batteries (LBSs) have received extensive attention owing to their remarkable theoretical capacity (1672 mA h g–1) and high energy density (2600 Wh kg–1), far beyond the state of art...

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