报告题目：Fast Iterative Algorithms for Blind Phase Retrieval

主  讲 人：常慧宾 教授

单      位：天津师范大学

时      间：2024年6月7日 15:00

地      点：郑州校区九章学堂C座302

摘      要：In nanoscale and ultrafast imaging technique, the reconstruction procedure is normally formulated as a blind phase retrieval (BPR) problem, where one has to recover both the sample and the probe jointly from phaseless data. We first present the mathematical formula of BPR, and related nonlinear optimization problems，and then give a brief review of the recent iterative algorithms. They mainly consist of three types of algorithms, including the operator-splitting based first-order optimization methods, second-order algorithms with Hessian, and subspace methods. The future research directions for experimental issues and theoretical analysis are further discussed.

简      介：常慧宾，天津师范大学数学科学学院，研究员、博士生导师，主要研究领域为计算光学成像、图像处理及高性能计算。（邀请人：庞志峰）