学　术

　　人力资源部教师发展中心“学者论坛”第65期论坛安排如下，欢迎广大师生参加：

　　一、主　题：Reconstruction and Analysis of Hyperspectral Imagery Using Random Projections

　　二、主讲人：美国密西西比州立大学 James Edwin Fowler, Jr.教授（IEEE Fellow）

　　三、时　间：2017年6月14日（周三）15:00

　　四、地　点：清水河校区经管楼宾诺咖啡

　　五、内容简介

　　The ever-growing spatial and spectral resolution of hyperspectral imagery has increased interest in dimensionality reduction that takes place on-board the data-acquisition platform. However, traditional dimensionality-reduction algorithms are data dependent, computationally expensive, and, consequently, prohibitive for many resource-constrained airborne or satellite-borne sensor platforms. Random projections offer a means for accomplishing dimensionality reduction simultaneously with data acquisition, such that the sensor projects onto a lower-dimensional subspace chosen at random. The problem of reconstruction from random projections is addressed, considering both compressed sensing as well as an alternative based on principal components. The effect of random projections on the performance of hyperspectral analysis is also investigated, with particular focus on anomaly detection and classification. It is observed that strongly anomalous vectors are likely to be identifiable in the domain of the random projections even at low dimension, while widely separated classes are likely to remain so. Finally, the ability of applying such anomaly or class analysis in the random-projection domain is exploited to improve subsequent reconstruction of the hyperspectral dataset.　　

　　六、主讲人简介

　　James E. Fowler received the B.S. degree in computer and information science engineering and the M.S. and Ph.D. degrees in electrical engineering from The Ohio State University, Columbus, OH, USA, in 1990, 1992, and 1996, respectively. In 1997, he held a postdoctoral assignment at the Université de Nice-Sophia Antipolis, France, and, in 2004, he was a Visiting Professor at Télécom ParisTech, Paris, France. He is currently Billie J. Ball Professor and Graduate Program Director of the Department of Electrical & Computer Engineering at Mississippi State University. Dr. Fowler is the Editor-in-Chief of IEEE Signal Processing Letters, and was previously a Senior Area Editor for IEEE Transactions on Image Processing and an Associate Editor for IEEE Transactions on Computational Imaging, IEEE Transactions on Image Processing, IEEE Transactions on Multimedia, and IEEE Signal Processing Letters. He is an Associate Editor for the EURASIP Journal on Image and Video Processing. He was a general co-chair of the 2014 IEEE International Conference on Image Processing, Paris, France. He is a Fellow of the IEEE.

　　七、主办单位：人力资源部教师发展中心

　　　　承办单位：电子工程学院　机器人研究中心

　　　　　　　　　　　　　　　　　　　　人力资源部教师发展中心

　　　　　　　　　　　　　　　　　　　　　　2017年6月12日