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Prof. Gaurav Sharma

IEEE Fellow

Department of Electrical and Computer Engineering

University of Rochester

Large Scale Visual Data Analytics for Geospatial Applications

Abstract: The widespread availability of high resolution aerial imagery covering wide geographical areas is spurring a revolution in large scale visual data analytics. Specifically, modern aerial wide area motion imagery (WAMI) platforms capture large high resolutio n at rates of 1-3 frames per second. The sequences of images, which individually span several square miles of ground area, represent rich spatio-termporal datasets that are key enablers for new applications. The effectiveness of such analytics can be enhanced by combining WAMI with alternative sources of rich geo-spatial information such as road maps or prior georegistered images. We present results from our recent research in this area covering three topics. First, we describe a novel method for pixel accurate, real-time registration of vector roadmaps to WAMI imagery based on moving vehicles in the scene. Next, we present a framework for tracking WAMI vehicles across multiple frames by using the registered roadmap and a new probabilistic framework that allows us to better estimate associations across multiple frames in a computationally tractable algorithm. Finally, in the third part, we highlight, how we can combine structure from motion and our proposed registration approach to obtain 3D georegistration for use in application such as change detection. We present results on multiple WAMI datasets, including nighttime infrared WAMI imagery, highlighting the effectiveness of the proposed methods through both visual and numerical comparisons. The talk particularly highlights how image processing and computer vision applications are a fertile ground for incorporating machine learning and data science methodologies

Biography: Gaurav Sharma is a professor at the Electrical and Computer Engineering Department at the University of Rochester, where, from 2008-2010, he also served as the Director for the Center for Emerging and Innovative Science (CEIS), a New York state funded center located at the University of Rochester chartered with promoting economic development through university-industry technology transfer. He received the PhD degree in Electrical and Computer engineering from North Carolina State University, Raleigh in 1996. From 1993 through 2003, he was with the Xerox Innovation group in Webster, NY, most recently in the position of Principal Scientist and Project Leader. His research interests include data analytics, cyber physical systems, signal and image processing, computer vision, and media security; areas in which he has 51 patents and has authored over a 190 journal and conference publications. He is the editor of the Digital Color Imaging Handbook published by CRC press in 2003. He is a member of the IEEE Publications, Products, and Services Board (PSPB) and chairs the IEEE Conference Publications Committee. From 2011 through 2015, he served as the Editor-in-Chief for the Journal of Electronic Imaging and has served as an associate editor for the Journal of Electronic Imaging, the IEEE Transactions on Image Processing, and for the IEEE Transactions on Information Forensics and Security. Dr. Sharma is a fellow of the IEEE, a fellow of SPIE, a fellow of the Society for Imaging Science and Technology (IS&T) and has been elected to Sigma Xi, Phi Kappa Phi, and Pi Mu Epsilon. In recognition of his research contributions, he received an IEEE Region I technical innovation award in 2008.

Nanowires and 2D Materials in Practice – Visibility, Doping and Device Investigation

Abstract: Starting from the first exfoliated graphene flakes in 2004, 2D materials have conquered a broad field of possible future applications. Among these, 2D material based circuits and sensors are very promising candidates for a contemporary industrial adoption. Nevertheless, there are many challenges to master before the goal of a profitable economic adjustment can be achieved. Therefore, the talk focuses on the possibility of a 2D material and nanowire assimilation that allows an analysis by the help of buried chip structures.

Prof. Klaus Kallis

Faculty of Electrical Engineering and Information

Technical University Dortmund


Biography: Biography Professor Klaus Kallis obtained his PhD in Electrical Engineering, summa cum laude, from Technical Univerity Dortmund, Germany in 2009. His PhD research focussed on MOS technology in the sub-100 nm-region. Presently,he is Head of technology, TU Dortmund University and represents Micro-and Nanotechnologies Group of Faculty of Electrical Engineering and Information Technology,TU, Dortmund University. Many of his research work has been accepted by industry. His research interests are in the area of 2D materials, nanophotonics and plasmonics.

Prof. Nan-Kuang Chen

Department of Electro-Optical Engineering

National United University

Miaoli,Taiwan 360

Cellular Dimensional Picoliter Microsensing in Fiber Optics

Abstract: In photonic applications, miniaturized fiber sensors at the length of 100 um scale have been found to helpful for ultra -tiny sample volume microsensing. Conventionally, the popular fiber-optic sensors are based on fiber Bragg gratings, long period gratings, Sagnac loop interferometers, Fabry-Perot interferometers,Michelson interferometers, and Mach-Zehnder interferometers. However, those interferometric sensors are usually with a device length of longer than a few centimeters, which is disadvantageous to achieve the high accuracy measurements for ultra-weak signals or tiny sample volume. In this talk, the fiber abrupt tapering technique is the fabrication method which breaks the adiabatic waveguiding in fiber core and transforms fractional power of the core mode into cladding modes will be introduced to achieve the miniaturized and integrated fiber components. By introducing two adjacent abrupt tapers in a highly Er/Yb codoped silica fiber using a focused CO2 laser beam to make micro Mach - Zehnder interferometer (MZI), the minimum device length achieved can be as short as 180 um. Fractio nal power of the core mode is coupled to excite the cladding modes through the first abrupt taper and the residual core mode and the excited cladding modes thus propagate through the different optical paths. The cladding modes and the core mode meet up at the second abrupt taper to produce interferences. The cladding modes can sense the ambient index variations of the external material coating at the phase shifter or at the abrupt tapers. This micro MZI can be used to detect the micro index variation of 0.002 under a 6.3 picoliter of liquid volume. In addition, the monolithic miniaturized Michelson interferometers based on core-cladding modes interferences for picoliter sample volume microsensing will also be introduced.

Biography: Nan-Kuang Chen received the Ph. D. degree from National Chiao Tung University, Taiwan, in 2006. From February 2014, he is a Professor with the Departmentof Electro-Optical Engineering,National United University, Taiwan. He has authored and co-authored more than 200 international SCI journal and conference articles. Heserved as reviewers for 41 prestigious SCI internationaljournals and also served on the International Advisory Committee/Technical Program Committee/Organizing Committeeand Session Chair/Reviewers for more than 80 times for many international conferences,delivered 22 invited talks in international conferences and organized two international conferences (IAPTC 2011 and IEEE/ICAIT 2013).He holds 14 ROC patents, 12 US patents, 1 Korea patent, and 4 PRC patents.His research interests also include micro optical forces(Van der Wall’sforceand evanescent attractive force) and its micro sensing applications, dispersion engineering technique,Cr3+-doped fiber amplifier, optical internet of things, large core high power fiber lasers, mode-locked femtosecond fiber lasers, andfiber-optic physics .