报 告 人：台雪成 教授
Department of Mathematics, University of Bergen, Norway
报告题目：Graph cut, convex relaxation and continuous max-flow problems
报告时间：2013 年12月16日下午4:00
报告地点：静远楼1506会议室
主办单位：数学与统计学院、科技处
报告摘要：In this talk, we will explore the relationship between graph cut, convex relaxation and somerecent continuous max-flow approaches proposed in the literature. Especially, we will see thecontinuous versus discrete relationship between them. There are two advantages with theseapproaches: 1) different fast numerical algorithms have been used for these approaches; 2)global minimization can be guaranteed for some nonconvex problems. We shall the connectionsbetween some of these algorithms.Image restoration and segmentation will be used as examples for applications of thesealgorithms. Extended application of ROF model, global minimization of the Chan-Vese model anddifferent global minimization approach for multiphase labeling problems will be presented. Thistalk is based on collaborative work with Bae, Yuan, Liu and other collaborators.
台雪成教授简介：Prof Tai Xue-Cheng is a member of theDepartment of Mathematicsat theUniversity of BergenofNorwayand alsoDivision of Mathematical Sciences,Nanyang Technological Universityof Singapore. In addition, he is also a member ofCenter of Mathematics for Application (CMA)atUniversity of OsloandCenter of Integrated Petroleum Research (CIPR)at Bergen. These are two of the national centers of excellence. Hisresearch interestsinclude Numerical PDEs, optimization techniques, inverse problems, and image processing. He has done significant research work his research areas and published over 80 top quality international conference and journal papers. He is the winner of the8th Feng Kang Prize for scientific computing. He served asorganizing and program committee membersfor a number of international conferences and has been ofteninvited for international conferences. He has served as referee and reviewers for many premier conferences and journals. Dr. Tai is a member of the editor board for the following journals:
1. •East Asia J. of Applied Mathematics(2010 - now)
2. •Inverse Problems and Imaging(2008 - now).
3. •Advances in Numerical Analysis(2008 -now).
4. •Executive editor forNumerical Mathematics: Theory, Methods and Applications (NM-TMA) (2005 - now).
5. •International Journal of Numerical analysis and modelling (2004 - now).
6. •Journal of Information and Computing Science(2006 - now).
7. •International Journal of Tomography and Statistics(2005 - now).