TUT-5: Image Reconstruction from Multisensor Data
Date: Sunday Afternoon, October 12
Presented by
Raghuveer Rao, Rochester Institute of Technology
Abstract
Data capture using an array of sensors is common in electromagnetic, underwater acoustic, ultrasound and various other wave propagation environments. The processing of such sensor array data leads to extraction of meaningful information such as source localization, intensity reconstruction, range-velocity estimation, target identification etc. Such processing in the "pupil plane" (as opposed to image capture in the focal plane made possible by optical devices at visible wavelengths)is the mainstay of image generation at important wavelengths where detector and processing technology are not well developed for CCD or CMOS array image recording. This includes not only well established areas such as radio astronomy but also a wide band in the millimeter wave to the terahertz and far infrared, which are of emerging importance in security and medical applications. A variety of signal processing techniques and algorithms have been developed since the early 1980s for effective reconstruction. New techniques are being developed to handle emerging applications such as multi-input multi-output (MIMO) radar, millimeter wave imaging and Terahertz imaging. This tutorial will provide an introduction to the principles of sensor array based image reconstruction and its applications. Topics include array configurations, far field and near field image reconstruction algorithms, correlative interferometry, super-resolution techniques, tomography, and applications to security, non-destructive evaluation and medicine.
Speaker Biography
Raghuveer Rao obtained his Ph.D. degree in Electrical Engineering from the University of Connecticut in December 1984. He was a Member of the Technical Staff at Advanced Micro Devices Inc. from 1985 to 1987. He joined the Rochester Institute of Technology in December 1987 where he is a Professor of Electrical Engineering and Imaging Science. He has also held IPA appointments with the US Naval Surface Warfare Center and the US Air Force Research Laboratory, and visiting appointments with the Indian Institute of Science and Princeton University. Prof. Rao has served as an Associate Editor of the IEEE Transactions on Signal Processing and the IEEE Transactions on Circuits and Systems - II, and is currently an Associate Editor for the Journal of Electronic Imaging. He is an elected Fellow of SPIE and a Fellow of the Center for Advanced Defense Studies.