关于Dr. Xudong Chen学术报告的通知

Abstract:Safe, reliable, high-quality and low-cost imaging technologies are growing requirements for the modern world. In many imaging applications, the shapes, locations and composite materials of objects are reconstructed from the measurement of electromagnetic fields scattered by these objects. Such imaging modality is referred to as reconstructed imaging. The problem of reconstructing such objects is basically an inverse scattering problem (ISP). This talk presents the formulation of inverse scattering problems and their numerical solutions. The ISPs are usually cast to optimization problems. Integral equation approach is used for homogeneous background medium ISPs, and differential equation approach is used for inhomogeneous background medium ISPs. Reconstruction results for synthetic and experimental data are presented. Super-resolution imaging results are reported.

Biography:Dr. Xudong Chen received the B.S. and M.S. degrees in electrical engineering from Zhejiang University, China, in 1999 and 2001, respectively, and the Ph.D. degree from the Massachusetts Institute of Technology, USA, in 2005. Since then he joined the Department of Electrical and Computer Engineering, National University of Singapore, Singapore, and he is currently an Associate Professor. His research interests are mainly electromagnetic inverse problems. In particular, he is experienced in reconstructing electromagnetic parameters of obscured targets based on data of how they scatter incoming electromagnetic excitations. He has published about 140 peer-reviewed journal papers on inverse-scattering problems, material parameter retrieval, optical microscopy, and optical encryption. The total citation of his papers is more than 2900 according to ISI Web of Science (SCI). He was the recipient of the Young Scientist Award by the Union Radio-Scientifique Internationale (URSI) in 2010 and the “Engineering Young Researcher Award” in the Faculty of Engineering, National University of Singapore in 2015.