DOI QR코드

DOI QR Code

An algorithm for estimating surface normal from its boundary curves

  • Park, Jisoon (3D Systems Korea, Inc. Innovation Center) ;
  • Kim, Taewon (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Baek, Seung-Yeob (Institute of Advanced Machinery and Design, Seoul National University) ;
  • Lee, Kunwoo (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 투고 : 2014.08.11
  • 심사 : 2014.11.27
  • 발행 : 2015.01.01

초록

Recently, along with the improvements of geometry modeling methods using sketch-based interface, there have been a lot of developments in research about generating surface model from 3D curves. However, surfacing a 3D curve network remains an ambiguous problem due to the lack of geometric information. In this paper, we propose a new algorithm for estimating the normal vectors of the 3D curves which accord closely with user intent. Bending energy is defined by utilizing RMF(Rotation-Minimizing Frame) of 3D curve, and we estimated this minimal energy frame as the one that accords design intent. The proposed algorithm is demonstrated with surface model creation of various curve networks. The algorithm of estimating geometric information in 3D curves which is proposed in this paper can be utilized to extract new information in the sketch-based modeling process. Also, a new framework of 3D modeling can be expected through the fusion between curve network and surface creating algorithm.

키워드

피인용 문헌

  1. C2 Continuous Blending of Time-Dependent Parametric Surfaces vol.19, pp.4, 2015, https://doi.org/10.1115/1.4043042
  2. A computationally efficient method for Human Activity Recognition based on spatio temporal cuboid and Super Normal Vector vol.38, pp.5, 2020, https://doi.org/10.3233/jifs-179706