报告题目：Efficient Solvers for Active Contour Models for Multi-phase Image Segmentations
主讲人：乔中华教授（香港理工大学）
时间：2023年10月14日（周六）11:00 a.m.
地点：北院卓远楼305会议室
主办单位：统计与数学学院
摘要：In this talk, we present some efficient numerical solvers for active contour models for multi-phase image segmentation problems. Iterative methods will be employed to minimize the given energy functionals. The proposed minimization algorithms enjoy the energy-decaying property under some conditions and have highly efficient performance in the segmentation. To overcome the initialization issue of active contour models, we develop a multi-phase inhomogeneous graph Laplacian initialization method to give the initial contour of numerical solvers. Numerical experiments are conducted on synthetic images and real images to demonstrate the capability of our initialization method, and the effectiveness of the numerical solvers in the image segmentation.
主讲人简介：
乔中华博士于2006年在香港浸会大学获得博士学位，现为香港理工大学应用数学系教授。主要从事数值微分方程方面算法设计及分析，近年来研究工作集中在相场方程的数值模拟及计算流体力学的高效算法。至今在SCI期刊上发表论文70余篇，文章被合计引用2000余次，于2013年获香港研究资助局颁发2013至2014年度杰出青年学者奖，于2018年获得香港数学会青年学者奖，并且于2020年获得香港研究资助局研究学者奖。
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