MULTISCALE LOGARITHM DIFFERENCE EDGEMAPS FOR FACE RECOGNITION AGAINST VARYING LIGHTING CONDITIONS
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Multiscale logarithm difference edgemaps for face recognition against varying li
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interface recombination, singlet exciton diffusion and quenching effects. Using field-dependent
mobility data measured on unipolar single layer devices, reported energetic levels of highest
occupied and lowest unoccupied molecular orbitals, and realistic assumptions for experimentally not
direct accessible parameters, current density and luminance of state-of-the-art undoped
vapor-deposited two- and three-layer OLEDs with maximum luminance exceeding 10000 cd/m2
were successfully simulated over 4 orders of magnitude. For an adequate description of these
multilayer OLEDs with energetic barriers at interfaces between two adjacent organic layers, the
model also includes a simple theory of charge carrier barrier crossing and recombination at organic–
organic interfaces. The discrete nature of amorphous molecular organic solids is reflected in the
model by a spatial discretization according to actual molecule monolayers, with hopping processes
for charge carrier and energy transport between neighboring monolayers.
Honors Thesis
The document describes a simulation of the optical bandgap properties of particle arrays under different configurations. The simulation studied how the bandgap structure of a rhombohedral array of nanoparticles is affected by changing the particle arrangement (square lattice vs. triangular lattice), material (silicon, vanadium, graphite, polystyrene), and other parameters. Results from the simulations in MATLAB and COMSOL are presented, showing shifts in the bandgap regions between the different configurations. The goal of the simulation was to understand how to control and tune an optical structure's bandgap across the visible light spectrum.
Beam generation and planar imaging at energies below 2.40 MeV with carbon and...
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Design of a low voltage low-dropout regulator
This document outlines the sections and contents for a project report on designing a low-voltage low-dropout regulator. It includes sections for an abstract, introduction, literature survey, existing and proposed systems, advantages, requirements, diagrams, implementation, testing, conclusions, and references. Contact information and course offerings are also provided for i3e Technologies.
An efficient constant multiplier architecture based on vertical horizontal bi...
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Aging aware reliable multiplier design with adaptive hold logic
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A generalized algorithm and reconfigurable architecture for efficient and sca...
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Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
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Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
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Ultrasparse ac link converters
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Single inductor dual-output buck–boost power factor correction converter
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Ripple minimization through harmonic elimination in asymmetric interleaved mu...
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Resonance analysis and soft switching design of isolated boost converter with...
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Reliability evaluation of conventional and interleaved dc–dc boost converters
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Power factor corrected zeta converter based improved power quality switched m...
The document describes a proposed switched mode power supply (SMPS) system that uses a front-end power factor corrected Zeta converter to improve power quality. The front-end converter reduces 100-Hz ripple and improves power factor and voltage regulation. Simulation and testing of a laboratory prototype showed the proposed SMPS enhanced performance under varying input voltages and loading conditions, meeting international power quality standards.
Pfc cuk converter fed bldc motor drive
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Optimized operation of current fed dual active bridge dc dc converter for pv ...
This document discusses optimized operation of a current-fed dual active bridge DC-DC converter for photovoltaic applications. It analyzes the operating principle and soft-switching conditions over a wide operating range with phase shift and duty cycle control. An optimized operating mode is proposed to achieve minimum RMS transformer current and extend the soft-switching region to reduce losses. Experimental results from a 5 kW hardware prototype verify the analysis. Contact and location information is also provided for an organization that develops IEEE software and hardware projects.
Online variable topology type photovoltaic grid-connected inverter
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2:同时对留学生所学专业登记给予评定
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ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
MULTISCALE LOGARITHM DIFFERENCE EDGEMAPS FOR FACE RECOGNITION AGAINST VARYING LIGHTING CONDITIONS
- 1. MULTISCALE LOGARITHM DIFFERENCE EDGEMAPS FOR FACE RECOGNITION AGAINST VARYING LIGHTING CONDITIONS ABSTRACT Lambertian model is a classical illumination model consisting of a surface albedo component and a light intensity component. Some previous researches assume that the light intensity component mainly lies in the large-scale features. They adopt holistic image decompositions to separate it out, but it is difficult to decide the separating point between large- scale and small-scale features. In this paper, we propose to take a logarithm transform, which can change the multiplication of surface albedo and light intensity into an additive model. Then, a difference (substraction) between two pixels in a neighborhood can eliminate most of the light intensity component. By dividing a neighborhood into subregions, edgemaps of multiple scales can be obtained. Then, each edgemap is multiplied by a weight that can be determined by an independent training scheme. Finally, all the weighted edgemaps are combined to form a robust holistic feature map. Extensive experiments on four benchmark data sets in controlled and uncontrolled lighting conditions show that the proposed method has promising results, especially in uncontrolled lighting conditions, even mixed with other complicated variations.