GAMES Webinar 2017-15期(Siggraph 2017论文报告)| 高希峰(纽约大学),秦红星(重庆邮电大学)

【GAMES Webinar 2017-15期(Siggraph 2017论文报告)】

报告嘉宾1:高希峰,纽约大学

报告时间:2017年9月28日(星期四)晚20:00-20:45(北京时间)

主持人:严冬明,中国科学院自动化所(个人主页:http://people.ucas.ac.cn/~dmyan

报告题目:Robust Hex-Dominant Mesh Generation using Field-Guided Polyhedral Agglomeration

论文信息:

Xifeng Gao, Wenzel Jakob, Marco Tarini, Daniele Panozzo. Robust Hex-Dominant Mesh Generation using Field-Guided Polyhedral Agglomeration.  ACM Transaction on Graphics, 36(4), 1-14. (SIGGRAPH 2017)

报告摘要:

While hexahedral meshes are generally preferred for solving nonlinear partial differential equations, automatic techniques capable of producing them robustly are still out of reach despite three decades of extensive research dedicated to this topic. Hexahedral-dominant meshes strike a good balance: they are easier to generate since they can contain a small number of irregular elements while offering good numerical properties. In this talk, I will present a novel algorithm to efficiently, robustly and automatically create field-aligned hex-dominant meshes.

讲者简介:

Xifeng Gao is a postdoc associate in the Courant Institute of Mathematical Sciences at New York University. He received his PhD degree in 2016 and won the best PhD dissertation award from the Department of Computer Science at the University of Houston. His research interests are in computer graphics, image processing, and multimedia security. He is currently focusing on research topics in robust mesh generation and processing. Homepage: https://gaoxifeng.github.io/

 

报告嘉宾2:秦红星,重庆邮电大学

报告时间:2017年9月28日(星期四)晚20:45-21:30(北京时间)

主持人:严冬明,中国科学院自动化所(个人主页:http://people.ucas.ac.cn/~dmyan

报告题目:Wasserstein蓝噪采样

论文信息:

Hongxing Qin, Yi Chen, Jinlong He, Baoquan Chen. Wasserstein blue noise sampling. ACM Transaction on Graphics, 36(4), 1-14. (SIGGRAPH 2017)

报告摘要:

通过把多个密度函数的采样看作有限制的Wasserstein重心,我们提出了一个多类蓝噪采样算子。通过引入熵正则项,我们取得了最优质量传输问题中的放松版传输计划,打破了已有CCVT方法中传输计划需要几何剖分的限制。熵正则项不仅可以控制蓝噪采样的空间规则性,而且减小了多类采样间的冲突问题。进一步,我们的算法也可以保证每一单类和组合类的自适应采样需求。

讲者简介:

秦红星,重庆邮电大学计算机学院教授,可视计算创新团队负责人。2008年于上海交通大学电子信息与电气工程学院获得博士学位,20088月至20099月在罗格斯新泽西州立大学从事博士后研究,2010年进入重庆邮电大学计算机学院工作。研究方为计算机图形学、可视化与可视分析、医学图像处理等。主页:http://cs.cqupt.edu.cn/~qinhx

 

直播链接:http://webinar.games-cn.org

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