Nonlocal Cahn-Hilliard equation and its applications in 3D printing and fingerprint restoration
报告题目：Nonlocal Cahn-Hilliard equation and its applications in 3D printing and fingerprint restoration
报告专家：李义宝 教授（西安交通大学）
报告时间：2022年11月29日16:00—17:00
报告地点：腾讯会议 ID：704-443-778（无密码）
报告摘要：In this talk, we will introduce a nonlocal Cahn-Hilliard equation and its applications in 3D printing and fingerprint restoration. A Crank-Nicolson method is proposed to discrete the nonlocal Cahn-Hilliard equation, which was developed for modeling microphase separation of diblock copolymers. We prove that our proposed scheme is unconditionally energy stable. Then we will present a robust and efficient fingerprint image restoration algorithm and surface pattern generation method for 3D printing. The proposed method has a merit that the pixel values in the damaged fingerprint domain can be obtained using the image information from the outside of the damaged fingerprint region. Restoration of fingerprint based on the adjacent pixel information can ensure the accuracy of fingerprint information with low computational cost. Computational experiments are presented to demonstrate the efficiency of the proposed method.
专家简介：李义宝，西安交通大学教授，博导，入选国家青年人才计划和西安交通大学青年拔尖计划，2018年3月至2020年6月担任数学与统计学院应用数学系主任，2019年7月至今担任数学与统计学院党委副书记。主要从事多物理场的耦合机制、3D打印的图形处理和拓扑优化等研究工作。自2010年，在JCP，CMAME等期刊发表论文80余篇，获国家授权发明专利3项。
邀请人：贺巧琳