国家数学与交叉科学中心合肥分中心报告会【Dr. Bailin Deng】

报告题目：Exploring Local Modifications for Constrained Meshes

报 告 人：Dr. Bailin Deng
         瑞士联邦理工学院

报告时间：2012年10月9日  下午3:30

报告地点：管理科研楼1518室

摘    要：Mesh editing under constraints is a challenging task with numerous applications in industrial and architectural design. In recent years, various methods have been proposed to allow a user to explore meshes with fixed connectivity that satisfy given constraints. These methods lack local control during exploration, which makes form-finding difficult. It is not easy to find a local and aesthetically pleasing deformation as the constraints can be globally coupled. Fixing vertices is problematic, as it is not clear in advance which regions need to be modified. We propose a novel framework for exploring local modifications of constrained meshes, which consists of three steps. First, a user specifies target positions for one or more vertices of the constrained mesh. Our algorithm computes a sparse set of displacement vectors that satisfies the constraints and produces nice a shape. Afterwards, our method builds a linear subspace which allows realtime exploration of local variations that satisfy the constraints approximately. Finally, after exploration, the result is optimized to fully satisfy the set of constraints. We evaluate our framework on meshes where each face is constrained to be planar.

个人简介: Bailin Deng received his B.S degree in 2005 and master degree in 2008 both from Tsinghua University, and the Ph.D. degree from Vienna University of Technology, Austria, in 2011. From November 2009 to January 2010, he worked as a Visiting Student in Geometric Modeling and Scientific Visualization Center at KAUST. From 2012, he is working as a Postdoctoral Researcher in Computer Graphics and Geometry Lab in EPFL, Switzerland. His research interests include Computer-Aided Geometric Design, Discrete Differential Geometry, and Architectural Geometry.

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         国家数学与交叉科学中心合肥分中心

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