应304am永利集团官网黄玉梅教授的邀请，信阳师范学院严辉银博士将于4月8-10日访问兰州大学并作学术报告。欢迎广大师生参加。

报告题目：Cauchy noise removal by generalized nonlocal low-rank method

时 间：2023年4月9日 10: 00 - 12: 00

地 点：城关校区理工楼631报告厅

Abstract: Image denoising is a fundamental problem in image processing. Images may be contaminated by different kinds of noises in different imaging applications. Cauchy noise often arises in many practical applications, such as radar and sonar generalized low-rank model for Cauchy noise removal and design a proximal alternating algorithm to solve this nonconvex model. The convergence of the algorithm is also demonstrated. Numerical experiments illustrate that the proposed method can remove Cauchy noise in the images much better than the existing state-of-the-art methods in terms of both image recovered visual qualities and measure quantities.

报告人简历

严辉银博士2018年12月博士毕业于兰州大学，现为信阳师范学院讲师，一直从事数值代数和图像处理的研究工作。主持在研河南省高等学校重点科研项目1项；参与国家自然科学基金项目2项。曾多次参加国内外学术会议并进行学术访问交流。目前为止，在国际知名学术期刊共发表学术论文10余篇。

应用数学与复杂系统重点实验室

304am永利集团官网

萃英学院

2023年4月7日