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Adaptive Motion Pooling And Diffusion For Optical Flow, Naga Venkata Kartheek Medathati, Pierre Kornprobst, Guillaume Masson, Manuela Chessa, Fabio Solari 2015 INRIA

Adaptive Motion Pooling And Diffusion For Optical Flow, Naga Venkata Kartheek Medathati, Pierre Kornprobst, Guillaume Masson, Manuela Chessa, Fabio Solari

MODVIS Workshop

We study the impact of local context of an image (contrast and 2D structure) on spatial motion integration by MT neurons. To do so, we revisited the seminal work by Heeger and Simoncelli (HS) [4] using spatio-temporal filters to estimate optical flow from V1-MT feedforward interactions. However, the HS model has difficulties to deal with several problems encountered in real scenes (e.g., blank wall problem and motion discontinuities). Here, we propose to extend the HS model with adaptive processing by focussing on the role of local context indicative of the local velocity estimates reliability. We set a network structure ...


Positive Control With Maximum Stability Radius For Continuous-Time Dynamic Systems, Amirreza Oghbaee 2015 Northeastern University

Positive Control With Maximum Stability Radius For Continuous-Time Dynamic Systems, Amirreza Oghbaee

Electrical and Computer Engineering Master's Theses

Positive systems have attracted much attention nowadays due to their numerous applications in modeling and control of physical, biological and economical systems. The state trajectory of such system remains in the nonnegative quadrant of the state space for any given nonnegative initial condition. This class of systems have nice stability and robustness properties. One can take advantage of these interesting properties to robustly stabilize general dynamic systems such that the closed-loop system becomes positive. One of the most important measures in robust control analysis is stability radius. This measure provides the amount of uncertainty that system can cope with before ...


A Hot-Wire Anemometer For Particle Counters, Nicholas H. Terrell 2015 Department of Electrical and Computer Engineering, Boise State University

A Hot-Wire Anemometer For Particle Counters, Nicholas H. Terrell

Boise State University Theses and Dissertations

Portable real-time air quality monitoring is becoming a reality. While the data quality of these devices may be questionable, they have shown to be promising. One such device is the optical particle counter. The particle counter functions by having laminar airflow with constant velocity traverse the path of a laser beam within an airflow channel. This thesis presents the design and integration of a hot-wire anemometer into the flow channel. The addition of an anemometer allows for real-time airflow velocity measurements to be performed and adjusted. Data from the anemometer can also be used to directly offset irregularities in particulate ...


Reducing Radio Frequency Susceptibilities In Commercial-Off-The-Shelf Camera Equipment For Use In Electromagnetic Compatibility Testing, Kevin Mainini 2015 East Tennessee State University

Reducing Radio Frequency Susceptibilities In Commercial-Off-The-Shelf Camera Equipment For Use In Electromagnetic Compatibility Testing, Kevin Mainini

Electronic Theses and Dissertations

The Technical Testing and Analysis Center (TTAC) Group at Oak Ridge National Laboratory performs electromagnetic compatibility testing on various radiation detection units. These tests require remote viewing of the equipment’s display to monitor its compliance with national and international standards. The Commercial-Off-the-Shelf (COTS) camera equipment that is used to monitor the displays exhibits radio frequency susceptibilities causing issues when determining the actual susceptibilities of the device under test. In order to mitigate this issue, a COTS camera was placed in two common test positions and cycled through three angled orientations with various radio frequency shielding methods applied. The development ...


Generalized Ellipsometry Analysis Of Anisotropic Nanoporous Media: Polymer-Infiltrated Nanocolumnar And Inverse-Column Polymeric Films, Dan Liang 2015 University of Nebraska–Lincoln

Generalized Ellipsometry Analysis Of Anisotropic Nanoporous Media: Polymer-Infiltrated Nanocolumnar And Inverse-Column Polymeric Films, Dan Liang

Electrical Engineering Theses and Dissertations

Characterization of the structural and optical properties is a subject of significance for nanoporous material research. However, it remains a challenge to find non-destructive methods for investigating the anisotropy of porous thin films with three-dimensional nanostructures. In this thesis, a generalized ellipsometry (GE) analysis approach is employed to study two types of anisotropic nanoporous media: slanted columnar thin films (SCTFs) with polymer infiltration and inverse-SCTF polymeric films. The thesis presents the physical properties obtained from GE analysis, including porosity, columnar shape, principal optical constants, birefringence, etc.

The thesis reports on using a GE analysis approach, combining the homogeneous biaxial layer ...


Phase-Control Of A Rising Sun Magnetron Using A Modulated, Addressable, Current Source, Sulmer Fernandez-Gutierrez, Jim Browning, Ming-Chieh Lin, David N. Smithe, Jack Watrous 2015 Bridge12

Phase-Control Of A Rising Sun Magnetron Using A Modulated, Addressable, Current Source, Sulmer Fernandez-Gutierrez, Jim Browning, Ming-Chieh Lin, David N. Smithe, Jack Watrous

Electrical and Computer Engineering Faculty Publications and Presentations

It has been proposed that the use of gated field emitters with a faceted cathode in place of the conventional thermionic cathode could be used to control the current injection in a magnetron, both temporally and spatially. In this work, this concept is studied using the particle-in-cell code VORPAL. The magnetron studied is a ten-cavity, rising sun magnetron, which can be modeled easily using a 2D simulation. The magnetron has a ten-sided faceted cathode. The electrons are injected from three emitter elements on each of the ten facets. Each emitter is turned ON and OFF in sequence at the oscillating ...


Supervisory Control And Data Acquisition (Scada) Control Optimization, Garrett Johnson, Jeremy Straub, Eunjin Kim 2015 SelectedWorks

Supervisory Control And Data Acquisition (Scada) Control Optimization, Garrett Johnson, Jeremy Straub, Eunjin Kim

Jeremy Straub

SCADA systems are generally used to monitor and control multiple systems of the same type to allow them to be remotely controlled and monitored. Water plants, for example, could be controlled and monitored by a SCADA system. This project seeks to optimize a SCADA system using Artificial Intelligence. A constraint satisfaction / optimization algorithm is used to maximize performance relative to weighted system goals.


Scada System Security: Accounting For Operator Error And Malicious Intent, Ryan Kilbride, Jeremy Straub, Eunjin Kim 2015 SelectedWorks

Scada System Security: Accounting For Operator Error And Malicious Intent, Ryan Kilbride, Jeremy Straub, Eunjin Kim

Jeremy Straub

Supervisory control and data acquisition (SCADA) systems are becoming more and more com-monplace in many industries today. Industries are making better use of software and large scale control systems to run efficiently, without the need for large amounts of oversight. Security is a particularly large issue with such systems, however. A human must still be involved to ensure smooth operation in the event of catastrophic system error, or unusual circumstanc-es. Human involvement presents problems: operators could make mistakes, configure the system to operate sub-optimally or take malicious actions. This imple-mentation of SCADA security aims to combat these problems.


Assessment Of The Impact Of Clothing And Environmental Conditions On Visible Light 3d Scanning, Pann Ajjimaporn, Jeremy Straub, Scott Kerlin 2015 SelectedWorks

Assessment Of The Impact Of Clothing And Environmental Conditions On Visible Light 3d Scanning, Pann Ajjimaporn, Jeremy Straub, Scott Kerlin

Jeremy Straub

The quality of models produced by visible light 3D scanners is influenced by multiple factors. To max-imize model accuracy and detail levels, the correct combination of lighting texture, subject posture and software usage must be selected. The work described herein has been performed to measure the effect of different lighting and envi-ronmental conditions on human 3D scanning results.


Design Of An Electrical Power System For The Openorbiter Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen 2015 SelectedWorks

Design Of An Electrical Power System For The Openorbiter Cubesat, Sofiane Chaieb, Michael Wegerson, Jeremy Straub, Ronald Marsh, David Whalen

Jeremy Straub

The OpenOrbiter Small Spacecraft Development Initiative aims to create an Open Prototype for Educational Nanosats (OPEN) framework (see [1]) for a complete 1-U CubeSat (10 cm x 10 cm x 10 cm, 1.33 kg spacecraft) with a total parts cost of less than $5,000 [2]. In order to supply all spacecraft subsystems with power, an electrical power system (EPS) has been implemented. The EPS generates power using multiple solar panels, stores it in batteries and regulates it to provide continuous levels of power to all of the subsystems of the spacecraft. The EPS has a crucial role in ...


Methods And Systems For Fault Disgnosis In Nuclear Power Plants, Jianping Ma 2015 The University of Western Ontario

Methods And Systems For Fault Disgnosis In Nuclear Power Plants, Jianping Ma

University of Western Ontario - Electronic Thesis and Dissertation Repository

This research mainly deals with fault diagnosis in nuclear power plants (NPP), based on a framework that integrates contributions from fault scope identification, optimal sensor placement, sensor validation, equipment condition monitoring, and diagnostic reasoning based on pattern analysis. The research has a particular focus on applications where data collected from the existing SCADA (supervisory, control, and data acquisition) system is not sufficient for the fault diagnosis system. Specifically, the following methods and systems are developed.

A sensor placement model is developed to guide optimal placement of sensors in NPPs. The model includes 1) a method to extract a quantitative fault-sensor ...


A Software Defined Radio Communications System For A Small Spacecraft, Michael Hlas, Jeremy Straub, Ronald Marsh 2015 SelectedWorks

A Software Defined Radio Communications System For A Small Spacecraft, Michael Hlas, Jeremy Straub, Ronald Marsh

Jeremy Straub

Software defined radios (SDRs) are poised to significantly enhance the future of small spacecraft communications. They allow signal processing to be performed on a computer by software rather than requiring dedicated hardware. The OpenOrbiter SDR (discussed in [1] and refined in [2]) takes data from the flight computer and converts it into an analog signal that is transmitted via the spacecraft antenna. Because the signal processing is done in software, the radio can be easily reconfigured. This process is done in reverse for incoming transmissions, which are received by the SDR and decoded by software. Figures 1 and 2 provide ...


Creating A Low-Cost Radio For An Open Cubesat, Michael Wegerson, Jeremy Straub, Ronald Marsh 2015 SelectedWorks

Creating A Low-Cost Radio For An Open Cubesat, Michael Wegerson, Jeremy Straub, Ronald Marsh

Jeremy Straub

A reliable communication system is key to the success of a CubeSat mission, allowing for data to be trans-mitted to the ground station and commands to be up-loaded to the satellite. To satisfy this need, the OpenOrbiter satellite (a 1-U CubeSat [1], being devel-oped with a target parts budget of under $5,000 [2]) is leveraging previously space-tested [3], low-cost trans-ceiver design which is based on the SI 4463 IC unit. This board design will be included in the publically available Open Framework for Educational Nanosatel-lites (OPEN) allowing others to modify, enhance and/or make use of the design in ...


Small Satellite Communication System Creation At The University Of North Dakota, Michael Hlas, Jeremy Straub, Ronald Marsh 2015 SelectedWorks

Small Satellite Communication System Creation At The University Of North Dakota, Michael Hlas, Jeremy Straub, Ronald Marsh

Jeremy Straub

Software defined radios (SDRs) are poised to significantly enhance the future of small spacecraft communications. They allow signal processing to be performed on a computer by software rather than requiring dedicated hardware. The OpenOrbiter SDR (discussed in [1] and refined in [2]) takes data from the flight computer and converts it into an analog signal that is transmitted via the spacecraft antenna. Because the signal processing is done in software, the radio can be easily reconfigured. This process is done in reverse for incoming transmissions, which are received by the SDR and decoded by software. Figures 1 and 2 provide ...


فایل مربوط به ارت سیستم های مخابراتی, asadollah kazemi 2015 Kavosh Institute

فایل مربوط به ارت سیستم های مخابراتی, Asadollah Kazemi

Dr. ASADOLLAH KAZEMI

No abstract provided.


Arduino-Based Food And Water Dispenser For Pets With Gsm Technology Control, Innovative Research Publications IRP India, Angelo A. Beltran Jr., Allen Rei Clavero, John Mark B. De Vera, Paul Avry P. Lopez, Cyrus A. Mueca, Napoleon A. Pempeña IX, Adrian Zhaniel D. Roxas 2015 Innovative Research Publications

Arduino-Based Food And Water Dispenser For Pets With Gsm Technology Control, Innovative Research Publications Irp India, Angelo A. Beltran Jr., Allen Rei Clavero, John Mark B. De Vera, Paul Avry P. Lopez, Cyrus A. Mueca, Napoleon A. Pempeña Ix, Adrian Zhaniel D. Roxas

Innovative Research Publications IRP India

This paper presents a project design for which the pet owner can feed his own pet even without his presence by just sending a text message to the system through his cellular phone. The system uses the concept of GSM technology to receive signal from the owner. If the system received the message, the servo motor and solenoid valve will be activated. The servo motor will rotate that will serve as the food transportation and the solenoid valve will be opened for the water to freely flow. Once the feeding is already done, the owner will receive a text message ...


Impact Of Srs In Wdm Systems And Its Mitigation By Maximum Likelihood Sequence Detection, Innovative Research Publications IRP India, T. Sabapathi, G. Jaya Brindha 2015 Innovative Research Publications

Impact Of Srs In Wdm Systems And Its Mitigation By Maximum Likelihood Sequence Detection, Innovative Research Publications Irp India, T. Sabapathi, G. Jaya Brindha

Innovative Research Publications IRP India

Non linear effects play a major role in hindering the progress of optical communication systems in terms of higher data rates and long haul transmissions. Maximum Likelihood Sequence Detection (MLSD) has been proposed to combat the nonlinear effects in optical channels. The main objective is to extract the original signal from the received signal which is distorted due to the non linear effects arising in the fiber. MLSD is an optimum detector as it uses the Viterbi detection through the Trellis structure. In this paper, the impact of SRS in the transmitted signal and its mitigation by MLSD are analyzed ...


Photonic Generation Of Higher Order Uwb Signals Using Optical Amplifiers, Innovative Research Publications IRP India, T. Sabapathi, I.Thanga Dharsni 2015 Innovative Research Publications

Photonic Generation Of Higher Order Uwb Signals Using Optical Amplifiers, Innovative Research Publications Irp India, T. Sabapathi, I.Thanga Dharsni

Innovative Research Publications IRP India

Photonic generation of UWB signals is an emerging technique as it requires no complex optical-electrical or electrical-optical conversion. There are a number of techniques employed to generate lower order UWB signals photonically. But applications that uses UWB signals demands higher order wave. Also the generation scheme should consider optimum hardware utility and inturn the reconfigurability of the components used. Considering these criteria this paper analyses the techniques of generating UWB signals using optical amplifiers. Optical amplifiers that works based on the principal of spontaneous and stimulated emission has the inherent property of reconfigurability in response to the applied bias current ...


Blind Source Separation Using Ica For Additive Mixing In Time And Frequency Domain, Innovative Research Publications IRP India, Swapnil Mohan Mahajan, Suneet Kishore Betrabet 2015 Innovative Research Publications

Blind Source Separation Using Ica For Additive Mixing In Time And Frequency Domain, Innovative Research Publications Irp India, Swapnil Mohan Mahajan, Suneet Kishore Betrabet

Innovative Research Publications IRP India

This paper presents BSS for additive mixing where every recordings consist of differently weighted signal. Therefore, by using ICA for both time-domain and frequencydomain, we are going to separate source signals from mixed signal. The main aim of our analysis is to perform undetermined convolutive BSS via frequency bin-wise clustering and permutation alignment where convolutive mixture are most delayed and weighted. So, ICA in timedomain is fails to separate signals. Hence, instead of this we use ICA in frequency-domain which playing vital role in separation of audio signals by using MATLAB which is our future work


Structural Similarity Based Image Quality Assessment Using Full Reference Method, Innovative Research Publications IRP India, Suneet Betrabet, Chetan Kumar Bhogayta 2015 Innovative Research Publications

Structural Similarity Based Image Quality Assessment Using Full Reference Method, Innovative Research Publications Irp India, Suneet Betrabet, Chetan Kumar Bhogayta

Innovative Research Publications IRP India

This paper presents an objective quality assessment for digital images that have been degraded by noise. Objective quality assessment is crucial and is generally used in image processing. The main objective of this paper is to analyse various statistical properties and their measurements and finally compare them. The statistical properties that are included are mean square error (MSE), root mean square error (RMSE), signal to noise ratio (SNRQ), peak signal to noise ratio (PSNR) and certain frequency parameters like spectral magnitude distortions and spectral phase distortions. But it is observed that MSE and PSNR yield poor results therefore a new ...


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