IEEE Dayton Section

In long range imaging applications, anisoplanatic atmospheric optical turbulence imparts spatially- and temporally-varying blur and geometric distortions in imagery. The ability to distinguish true scene motion from turbulence warping is important for many image processing and analysis tasks. We present two novel scene-motion detection algorithms specifically designed to operate in the presence of anisoplanatic optical turbulence. The first method is based on modeling background intensity fluctuations with a Gaussian mixture model (GMM). The GMM parameters are formed using knowledge of the theoretical turbulence tilt variance statistics derived from the Fried parameter or refractive index structure function. Thus, this new method is referred to as the Tilt Variance GMM (TV-GMM) algorithm. While most prior intensity methods use empirical temporal data to estimate a background model, this approach is based on the theoretical atmospheric tilt variance statistics. This technique effectively avoids contamination in the background statistics when true scene motion is present. TV-GMM also considers the application of global image registration as a preprocessing step to improve performance by employing the recently developed residual tilt variance analysis that accounts for image registration. Rather than forming its statistical model on the (optionally registered) input imagery directly, the second method uses a turbulence simulator. Multiple realizations of atmospheric turbulence are applied to a single prototype background image to create a non-contaminated image stack of the scene background. To incorporate the spatial relationship between neighboring pixels, each pixel's intensity is treated as an independent variable of a single Gaussian distribution. Although full anisoplanatic turbulence simulators are available, alternative approaches are sufficient provided that the anisoplanatic warping is accurate. In this work, a warping simulator based on tilt field statistics is used to provide a fast and reasonable approximation. Because this second method uses a warping simulator, it is referred to as the Warping Simulator Gaussian Model (WS-GM) algorithm. Both quantitative and qualitative performance analyses are conducted, and the proposed methods are compared against several state-of-the art algorithms using both synthetic and real-world data sets. The three synthetic image datasets are generated with an anisoplanatic numerical wave-propagation simulator that enables per-pixel motion truth. Both TV-GMM and WS-GM outperform the benchmark methods across all turbulence profiles used in this study. Speaker(s): Dr. Richard L. Van Hook, Agenda: 12:00-12:05: Introduction 12:05-12:35: Technical Presentation by Dr. Van Hook 12:35-12:45: Q&A 12:45-1:00: Additional time, if needed. Virtual: https://events.vtools.ieee.org/m/328113

Where: University of Dayton Research Institute, Curran Place – Meyer room (DJC PLACE N1650 MEYER ROOM ) Meyer room is close to north side of the parking lot upon entering Curran Place. Please enter through the north side of bldg and the Meyer room is on the left side of the hallway Speaker(s): Dennis Grosjean, Room: Meyer room , Bldg: University of Dayton Research Institute, Curran Place, 1700 South Patterson Blvd, Dayton, Ohio, United States, 45469

EISCAT, the European Incoherent SCATter radar system, is a multi-site incoherent scatter radar (ISR) system, originally planned for studies of the auroral ionosphere and located in the auroral zone in northern Finland, Norway and Sweden. Thanks to its ability to provide spatially and temporally resolved measurements of plasma parameters (plasma density, ion and electron temperatures, ion mass and bulk velocities) throughout the ionosphere, from the D layer to the topside ionosphere, incoherent scatter is a powerful ground-based tool for ionosphere and upper atmosphere studies. Major attention is paid to the ionospheric heating facility, “Heating,” next to the Tromsø, Norway, EISCAT facility to study the auroral region and provide new discoveries in plasma physics and ionospheric and atmospheric science to this day. Heating will continue operating along with the new generation of incoherent scatter radar, called EISCAT-3D, when it is commissioned in the near future. Co-sponsored by: Wright-Patt Multi-Intelligence Development Consortium (WPMDC), The DOD & DOE Communities Speaker(s): Ray Wasky, Agenda: EISCAT, the European Incoherent SCATter radar system, is a multi-site incoherent scatter radar (ISR) system, originally planned for studies of the auroral ionosphere and located in the auroral zone in northern Finland, Norway and Sweden. Thanks to its ability to provide spatially and temporally resolved measurements of plasma parameters (plasma density, ion and electron temperatures, ion mass and bulk velocities) throughout the ionosphere, from the D layer to the topside ionosphere, incoherent scatter is a powerful ground-based tool for ionosphere and upper atmosphere studies. Major attention is paid to the ionospheric heating facility, “Heating,” next to the Tromsø, Norway, EISCAT facility to study the auroral region and provide new discoveries in plasma physics and ionospheric and atmospheric science to this day. Heating will continue operating along with the new generation of incoherent scatter radar, called EISCAT-3D, when it is commissioned in the near future. Virtual: https://events.vtools.ieee.org/m/330937

Please join WIE/YP in our last social event of the year! We will be in the party room at Wild Axe Throwing. All registrations include pizza. This event includes axe throwing, pizza, arcade games, and a pinball machine. There are 16 spots for axe throwers and 8 spots for spectators. ALL IN ATTENDANCE MUST WEAR CLOSE TOED SHOES. Food is included with registration. All drinks must be purchased at Wild Axe Throwing on your own. They offer Coke products and a full bar. This is a CASHLESS location. Parking is available in their parking lot at no cost. Pricing: Throwers: $20 IEEE Members (Includes food and throwing) $25 Guests (Includes food and throwing) Spectators: $5 IEEE Members (Includes food) $10 Guests (Includes food) SPECTATORS: PLEASE USE THIS LINK TO REGISTER https://events.vtools.ieee.org/event/register/327458 For more information, contact Tara Carroll or visit www.wildaxethrowing.com Agenda: Axe Throwing and dinner to start at 5pm. Event ends at 6:30pm. 3251 Seajay Drive, Beavercreek, Ohio, United States, 45430

THIS LINK IS FOR SPECTATORS ONLY! YOU WILL NOT BE ABLE TO THROW IF YOU CHOOSE THIS LINK! Please join WIE/YP in our last social event of the year! We will be in the party room at Wild Axe Throwing. All registrations include pizza. This event includes axe throwing, pizza, arcade games, and a pinball machine. There are 16 spots for axe throwers and 8 spots for spectators. ALL IN ATTENDANCE MUST WEAR CLOSE TOED SHOES. Food is included with registration. All drinks must be purchased at Wild Axe Throwing on your own. They offer Coke products and a full bar. This is a CASHLESS location. Parking is available in their parking lot at no cost. Pricing: Throwers: $20 IEEE Members (Includes food and throwing) $25 Guests (Includes food and throwing) Spectators: $5 IEEE Members (Includes food) $10 Guests (Includes food) For more information, contact Tara Carroll or visit www.wildaxethrowing.com Agenda: Axe throwing and dinner to start at 5pm. Event ends at 6:30pm. 3251 Seajay Drive, Beavercreek, Ohio, United States, 45430

Abstract: Air-to-ground radar imaging via synthetic aperture radar provides an all-weather, day-night capability to deliver fine-resolution imagery at long range. Due to the unique phenomenology of RF scattering, interpretation of SAR imagery can be nuanced even for trained analysts. As radar systems have begun to explore wide-angle or even staring synthetic aperture radar, where the system dwells on a scene for a much longer period of time, the resultant data has new elements of spatial diversity that can be exploited to improve SAR image interpretability. We explore several techniques for characterizing and visualizing SAR image content based on wide-angle data. We present results with simulated and measured data sets. Co-sponsored by: CH02038 - Dayton Section Jt Chapter,SP01/EMB18/SMC28 Speaker(s): Dr. Brian D. Rigling, Agenda: 11:30-11:35 - Introduction 11:35-12:05 - Technical Presentation 12:05-12:15 - Q&A 12:15-12:30 - Additional Time, If Needed Virtual: https://events.vtools.ieee.org/m/328951

AFOSR/ION, Arlington, VA, is the North American arm of AFOSR’s International Office (IO). AFOSR/IO offers several personnel exchange programs to connect USAF Scientists and Engineers (S&Es) to counterpart, non-government researchers. As program manager and coordinator for three ION programs, I will summarize scope and requirements on the three Programs. “Windows on Science,” or WOS, is the most familiar program to AF S&Es and the most popular amongst them. WOS is a tool to provide direct contact between S&Es and distinguished foreign national researchers by providing travel support to that counterpart talent. The WOS program facilitates hundreds of technical exchanges. WOS PIs have been from both renowned and less known academic and other non-governmental institutes. WOS has consistently targeted subject matter expertise, tailored visits to meet core mission needs, informed stakeholders, augmented inhouse research, and leveraged foreign talent to benefit DAF in 6.1, 6.2 and beyond. Next is the “Window On World” or WOW Program: WOW has been the program of choice to provide unique international opportunities for outstanding USAF S&Es to conduct full-time research alongside prominent foreign researchers, OCONUS, at non-governmental institutes. Unsurpassed as a workforce development tool, WOW projects often include use of experimental laboratory facilities unavailable at the S&E’s home organization. WOW is used to transition skills and knowledge from foreign sites to the inhouse efforts at home organizations while creating and deepening relationships between USAF S&Es and international counterparts which endure beyond the in situ tenure of the WOW project and visit itself. Each year WOW yields work of national significance. WOW projects can range from 21 days to no more than 179 days. AFOSR pays all TDY costs, while the AF S&E’s home organization continues to pay all other costs. Upon completion of the TDY the AF S&E returns to her/his home organization. In addition to WOW, ION offers the “Visiting Scientist Program (VSP).” WOW and VSP mirror each other in description, scope, and requirements. Where WOW is OCONUS, VSP is CONUS. VSP provides opportunities for outstanding Air Force scientists and engineers (AF S&Es) to conduct full-time research at a CONUS non-government laboratory or institute. Like WOW, the duration of a VSP visit ranges from no less than 21 days to no more than 179 days. AFOSR pays all TDY costs, while the AF S&E’s home organization continues to pay all other costs. Upon completion of the TDY the AF S&E returns to her/his home organization. Co-sponsored by: Wright-Patt Multi-Intelligence Development Consortium (WPMDC), The DOD & DOE Communities Speaker(s): Joanne Maurice, Agenda: AFOSR/ION, Arlington, VA, is the North American arm of AFOSR’s International Office (IO). AFOSR/IO offers several personnel exchange programs to connect USAF Scientists and Engineers (S&Es) to counterpart, non-government researchers. As program manager and coordinator for three ION programs, I will summarize scope and requirements on the three Programs. “Windows on Science,” or WOS, is the most familiar program to AF S&Es and the most popular amongst them. WOS is a tool to provide direct contact between S&Es and distinguished foreign national researchers by providing travel support to that counterpart talent. The WOS program facilitates hundreds of technical exchanges. WOS PIs have been from both renowned and less known academic and other non-governmental institutes. WOS has consistently targeted subject matter expertise, tailored visits to meet core mission needs, informed stakeholders, augmented inhouse research, and leveraged foreign talent to benefit DAF in 6.1, 6.2 and beyond. Next is the “Window On World” or WOW Program: WOW has been the program of choice to provide unique international opportunities for outstanding USAF S&Es to conduct full-time research alongside prominent foreign researchers, OCONUS, at non-governmental institutes. Unsurpassed as a workforce development tool, WOW projects often include use of experimental laboratory facilities unavailable at the S&E’s home organization. WOW is used to transition skills and knowledge from foreign sites to the inhouse efforts at home organizations while creating and deepening relationships between USAF S&Es and international counterparts which endure beyond the in situ tenure of the WOW project and visit itself. Each year WOW yields work of national significance. WOW projects can range from 21 days to no more than 179 days. AFOSR pays all TDY costs, while the AF S&E’s home organization continues to pay all other costs. Upon completion of the TDY the AF S&E returns to her/his home organization. In addition to WOW, ION offers the “Visiting Scientist Program (VSP).” WOW and VSP mirror each other in description, scope, and requirements. Where WOW is OCONUS, VSP is CONUS. VSP provides opportunities for outstanding Air Force scientists and engineers (AF S&Es) to conduct full-time research at a CONUS non-government laboratory or institute. Like WOW, the duration of a VSP visit ranges from no less than 21 days to no more than 179 days. AFOSR pays all TDY costs, while the AF S&E’s home organization continues to pay all other costs. Upon completion of the TDY the AF S&E returns to her/his home organization. Virtual: https://events.vtools.ieee.org/m/332689