标题：Principal directions estimation on point set surfaces
作者：He, Chen ;Zhang, Yan ;Li, Xueqing
作者机构：[He, Chen ;Zhang, Yan ;Li, Xueqing ] School of Computer Science and Technology, Shandong University, China;[Zhang, Yan ] Shandong Jianzhu University, 更多
会议名称：2013 7th International Conference on Image and Graphics, ICIG 2013
会议日期：26 July 2013 through 28 July 2013
来源：Proceedings - 2013 7th International Conference on Image and Graphics, ICIG 2013
关键词：Point set surface; Principal curvature; Principal direction
摘要：Principal direction is an important geometry feature of 3D surfaces. It can benefit many applications such as surface quadrangulation, surface field design and so on. In this paper, we propose a novel algorithm for estimating principal directions based on normal variations. The proposed algorithm is based on the observation that the principal directions indicate respectively the slowest and the steepest variation of the surface normal. The algorithm is simple yet efficient. It doesn't need any analytic surface fitting procedure. The result shows that our algorithm is correct and suitable for different surface shapes. © 2013 IEEE.