11月26日 刘继军教授学术报告

发布时间:2019-11-25

报告题目：On fluorescence imaging by diffusion process: model and algorithm

主讲人：刘继军，东南大学教授

报告时间：2019年11月26日 10：30-11：30

报告地点：南校园336栋（旧数学楼）210

主持：杨宏奇教授

摘要：To quantify epifluorescence imaging of biological tissues under flat excitation and detection probes, we need to solve an inverse problem for the coupled radiative transfer equations which describe the excitation and emission fields in biological tissue. By transforming the radiative transfer system into coupled diffusion equations for the averaged fields, we have a nonlinear inverse problem to identify the absorption coefficient for a fluorophore by this system with impedance boundary condition, using some time resolved measurement data. For the linearized inverse problem obtained by ignoring the absorbing effect on the excitation field, we firstly establish the estimates of errors on the excitation field and the solution to the inverse problem, which ensures the reasonability of the model approximation qualitatively. Then, based on the analytic expressions of excitation and emission fields, the identifiability of the absorption coefficient from the linearized inverse problem is rigorously analyzed for absorption coefficient in special form, revealing the physical difficulty of the 3-dimensional imaging model by the back scattering diffusive system.

个人介绍：刘继军，现为东南大学二级教授、博士生导师、享受国务院政府特殊津贴专家。目前还担任东南大学丘成桐中心常务副主任，中国工业与应用数学学会常务理事，中国计算数学学会常务理事，江苏省计算数学学会副理事长，江苏省工业与应用数学学会监事。入选江苏省青蓝工程优秀青年骨干教师和中青年学术带头人，江苏省333工程第三层次培养人选；荣获宝钢教育基金会全国优秀教师一等奖。作为主持人获江苏省教学成果一等奖、教育部自然科学二等奖、江苏省自然科学三等奖。刘继军教授在国内外具有广泛的学术影响，是国内外多所知名大学的访问教授。现担任SCI刊物JIIP编委。任2012年亚洲反问题国际会议主办人，NSFC中德合作自然科学基金项目中方主持人。已主持完成国家自然科学基金重大研究计划、面上项目、国际合作项目等12项，出版专著2本，发表SCI学术论文110余篇。