Engineering Commons^™

Recursive Non-Local Means Filter For Video Denoising, Redha A. Ali, Russell C. Hardie

Electrical and Computer Engineering Faculty Publications

In this paper, we propose a computationally efficient algorithm for video denoising that exploits temporal and spatial redundancy. The proposed method is based on non-local means (NLM). NLM methods have been applied successfully in various image denoising applications. In the single-frame NLM method, each output pixel is formed as a weighted sum of the center pixels of neighboring patches, within a given search window.

The weights are based on the patch intensity vector distances. The process requires computing vector distances for all of the patches in the search window. Direct extension of this method from 2D to 3D, for video …

Speckle Effects In Target-In-The-Loop Laser Beam Projection Systems, Mikhail Vorontsov

Electro-Optics and Photonics Faculty Publications

In target-in-the-loop laser beam projection scenarios typical of remote sensing, directed energy, and adaptive optics applications, a transmitted laser beam propagates through an optically inhomogeneous medium toward a target, scatters off the target’s rough surface, and returns back to the transceiver plane. Coherent beam scattering off the randomly rough surface results in strong speckle modulation in the transceiver plane. This speckle modulation has been a long-standing challenge that limits performance of remote sensing, active imaging, and adaptive optics techniques. Using physics-based models of laser beam scattering off a randomly rough surface, we show that received speckle-field spatial and temporal characteristics …

Analysis Of The Joint Impact Of Atmospheric Turbulence And Refractivity On Laser Beam Propagation, Victor A. Kulikov, Mikhail Vorontsov

Electro-Optics and Photonics Faculty Publications

A laser beam propagation model that accounts for the joint effect of atmospheric turbulence and refractivity is introduced and evaluated through numerical simulations. In the numerical analysis of laser beam propagation, refractive index inhomogeneities along the atmospheric propagation path were represented by a combination of the turbulence-induced random fluctuations described in the framework of classical Kolmogorov turbulence theory and large-scale refractive index variations caused by the presence of an inverse temperature layer. The results demonstrate that an inverse temperature layer located in the vicinity of a laser beam’s propagation path may strongly impact the laser beam statistical characteristics including the …

Development, Energy, And Climate Change Policy: Enabling Sustainable Development Through Access To Energy, Robert J. Brecha

Biennial Conference: The Social Practice of Human Rights

Human rights, human development, and climate change clearly overlap in many ways. Development, as quantified by the Human Development Index (HDI), for example, has historically been strongly correlated with energy consumption. This fact is recognized in Sustainable Development Goal (SDG) 7, to “ensure access to affordable, reliable, sustainable and modern energy for all.” Currently the world is in the midst of a large wave of human migration, much of it involuntary and due to stymied development opportunities as well as political upheaval. Climate change will become, or already is, an exacerbating factor in migration dynamics.

A pertinent question is how …

Agenda: Second International Workshop On Thin Films For Electronics, Electro-Optics, Energy And Sensors (Tfe3s), University Of Dayton Research Institute

Electro-Optics and Photonics Faculty Publications

University of Dayton’s Center of Excellence for Thin Film Research and Surface Engineering (CETRASE) is delighted to organize its second international workshop at the University of Dayton’s Research Institute (UDRI) campus in Dayton, Ohio, USA. The purpose of the new workshop is to exchange technical knowledge and boost technical and educational collaboration activities within the thin film research community through our CETRASE and the UDRI.

Compiled Research & Materials, Appendix F: Valuable Solar Resources, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban

Sustainability and Energy

This document lists several URLs that may offer valuable information as it pertains to solar energy and solar initiatives across the U.S.

Compiled Research & Materials, Appendix H: Tiny Homes Ideas, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern

Sustainability and Energy

This document explains some of the ideas developed by the team that relate to the implementation of a tiny homes neighborhood.

Compiled Research & Materials, Appendix I: Tiny Homes Survey, Andrew Tarutani

Sustainability and Energy

This document represents a survey that could be used to gauge student interest for a tiny homes neighborhood.

Compiled Research & Materials, Appendix G: Tiny Homes Consideration, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban

Sustainability and Energy

This document reviews several considerations identified by the team that relate to the concept of a tiny homes neighborhood.

Compiled Research & Materials, Appendix L: Solar America Initiative, S. Grover

Sustainability and Energy

This National Renewable Energy Laboratory resource details the benefits of the Solar America Initiative.

Compiled Research & Materials, Appendix K: Economic Impact Potential Of Solar Photovoltaics In Illinois, Illinois State University. Center For Renewable Energy

Sustainability and Energy

This 2013 study reviews the potential for economic impact of solar photovoltaics in the state of Illinois.

Compiled Research & Materials, Appendix Q: Energysage Interview, Andrew Tarutani, Conor Mcgrail, Colin Joern, Madalyn Beban, Laura Kunas

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with a representative with EnergySage.

Compiled Research & Materials, Appendix N: Keybank Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with KeyBank regarding financing options for solar projects.

Compiled Research & Materials, Appendix O: Energywize Interview, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with Wendell Ott of EnergyWize.

Compiled Research & Materials, Appendix P: Current Solar Pricing, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews the current state of solar costs as defined in an informational interview with Wendell Ott of EnergyWize.

Comparing Multiple Turbulence Restoration Algorithms Performance On Noisy Anisoplanatic Imagery, Michael Armand Rucci, Russell C. Hardie, Alexander J. Dapore

Electrical and Computer Engineering Faculty Publications

In this paper, we compare the performance of multiple turbulence mitigation algorithms to restore imagery degraded by atmospheric turbulence and camera noise. In order to quantify and compare algorithm performance, imaging scenes were simulated by applying noise and varying levels of turbulence. For the simulation, a Monte-Carlo wave optics approach is used to simulate the spatially and temporally varying turbulence in an image sequence. A Poisson-Gaussian noise mixture model is then used to add noise to the observed turbulence image set. These degraded image sets are processed with three separate restoration algorithms: Lucky Look imaging, bispectral speckle imaging, and a …

Compiled Research & Materials, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document outlines the research conducted and progress made over the Spring 2017 semester. It details the team's efforts to pursue implementation of a solar co-op in the McPherson Town neighborhood along with an innovative tiny homes neighborhood on the University of Dayton's campus.

Compiled Research & Materials, Appendix M: Mcpherson Town Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with McPherson Town neighborhood president Phil Leppla.

Compiled Research & Materials, Appendix J: Solar For Economic Development Toolkit, National Association Of Regional Councils

Sustainability and Energy

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the …

On The Simulation And Mitigation Of Anisoplanatic Optical Turbulence For Long Range Imaging, Russell C. Hardie, Daniel A. Lemaster

Electrical and Computer Engineering Faculty Publications

We describe a numerical wave propagation method for simulating long range imaging of an extended scene under anisoplanatic conditions. Our approach computes an array of point spread functions (PSFs) for a 2D grid on the object plane. The PSFs are then used in a spatially varying weighted sum operation, with an ideal image, to produce a simulated image with realistic optical turbulence degradation. To validate the simulation we compare simulated outputs with the theoretical anisoplanatic tilt correlation and differential tilt variance. This is in addition to comparing the long- and short-exposure PSFs, and isoplanatic angle. Our validation analysis shows an …

Next Steps For Mentoring Program, Patrick Gray

Sustainability and Connectivity

This file provides a jump-off position for students in the fall 2017 semester who want to continue work toward a mentoring program.

Sustainability Survey, Dayton Regional Green Nonmember Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document is a sustainability and sharing survey intended for businesses that are not already Dayton Regional Green members. This survey includes questions similar to what is in DRG3's survey. It asks questions regarding mentoring, sharing, local sourcing, energy, waste streams, and sustainability.

Hackathon 2017 Project: Resource-Sharing Website, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

Our team was given the opportunity to pitch a concept to students attending UD’s Hackathon event on Febraury 22, 2017. One group took on the project and created the framework for a website that could be used for business connectivity and sharing. This document spells out the major takeaways from the project.

Team Meeting Minutes, January-April 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document provides notes from meetings with several Dayton-area community leaders. Several ideas that make Dayton more community-oriented and material-efficient are discussed.

Dayton's Best 2017 Project: Moving Forward, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This is a summary of work for the Sustainability and Connectivity group in Dr. Kevin Hallinan's 2017 Local Sustainability with Abundance course. It describes our research process over the course of the semester and some final conclusions. Additionally, it discusses how we see the project continuing beyond our work.

Mentoring Brochure: Longer Version, Tim Leonard, Abigail Lisjak, Adam Foster

Sustainability and Connectivity

This is a mentoring brochure we created to show different organizations our ideas. This is the longer of two versions.

Mentoring Brochure: Shorter Version, Tim Leonard, Abigail Lisjak, Adam Foster

Sustainability and Connectivity

We made these brochures to talk to different organizations about our thoughts and ideas. There are two iterations of this. This one has less words.

Sustainability Survey, Dayton Regional Green Member Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document is a sustainability and sharing survey intended for businesses that are Dayton Regional Green members. Dayton Regional Green already has an extensive survey. This survey tries to avoid redundancy in surveys by asking other questions not included in DRG3's survey. It asks questions regarding mentoring, sharing, local sourcing, and sustainability.

Contacts, Timothy Leonard, Abby Lisjak, Adam Foster

Sustainability and Connectivity

This a contact sheet of every group that the mentoring group has reached out to. There are no emails or phone numbers provided. If you would like those, please contact Kevin Hallinan.

Dayton Regional Green Meeting Notes, Tim Leonard, Adam Foster, Abigail Lisjak

Sustainability and Connectivity

These are notes from our meeting with Lamees Mubaslat from Dayton Regional Green. She is really excited about more mentoring programs in Dayton.