報告題目:Efficient Solvers for Active Contour Models for Multi-phase Image Segmentations
主講人:喬中華教授(香港理工大學)
時間:2023年10月14日(周六)11:00 a.m.
地點:北院卓遠樓305會議室
主辦單位:統(tǒng)計與數(shù)學學院
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.
主講人簡介:
喬中華博士于2006年在香港浸會大學獲得博士學位,現(xiàn)為香港理工大學應用數(shù)學系教授。主要從事數(shù)值微分方程方面算法設計及分析,近年來研究工作集中在相場方程的數(shù)值模擬及計算流體力學的高效算法。至今在SCI期刊上發(fā)表論文70余篇,文章被合計引用2000余次,于2013年獲香港研究資助局頒發(fā)2013至2014年度杰出青年學者獎,于2018年獲得香港數(shù)學會青年學者獎,并且于2020年獲得香港研究資助局研究學者獎。