SHAPE EDITING OF POINT-SAMPLED SURFACE
3D-scanning devices, such as laser-range scanners and structured light scanners, have been major sampling tools for acquiring digital 3D shapes of a complex surface however, surface editing and deformation types is still quite limited. In this paper we propose a novel point based geometry representation that is designed for the purpose of manipulation and global free-form deformation over region of interest across the entire point-set surface. We extend the surface representation from a single-scale representation to a multi-scale representation using the concept of scale-space. Multi-scale surface representation provides a set of surface approximations at different levels of smoothness. This allows the user to manipulate a model in a flexible and intuitive way without worrying about whether or not the surface detail is properly affected. We use a fairing operator to generate successively smoother approximation levels of a given input surface , and encode each level relative to the next smoother level using normal displacements to ensure intuitive detail preservation. The experiment demonstrates their effectiveness on surface deformation.
Surface representation Point-sampled geometry Fairing operator Deformation
XIAO-YE CAO ZHI-YAN WANG YING-HONG LIANG XIAO-WEI XU
College of Computer Science and Technology, South China University of Technology, Guangzhou, 510640, China
国际会议
2008 International Conference on Machine Learning and Cybernetics(2008机器学习与控制论国际会议)
昆明
英文
3037-3041
2008-07-12（万方平台首次上网日期，不代表论文的发表时间）