CAJ | 학술논문

本文首先介绍了三次贝赛尔曲线，并推广到多次贝塞尔曲线、贝塞尔曲面以及贝塞尔体，然后详细介绍了自由变形技术（Free Form Deformation），并将此技术应用于点云模型上，同时对变形公式进行了改进。实验结果表明，基于改进后 FFD 的点云变形运行速度快，能够达到实时的效果，从而提高了变形时的直观性。
본문수선개소료삼차패새이곡선，병추엄도다차패새이곡선、패새이곡면이급패새이체，연후상세개소료자유변형기술（Free Form Deformation），병장차기술응용우점운모형상，동시대변형공식진행료개진。실험결과표명，기우개진후 FFD 적점운변형운행속도쾌，능구체도실시적효과，종이제고료변형시적직관성。
This paper first introduces a cubic Bezier curves, and extended to the Bezier curves of higher order, Bezier surfaces, as well as Bezier bodies. Then describes the free-form deformation, uses this technology in the point cloud models and improves the deformation formula. The experimental results show that the deformation of point cloud based on improved FFD runs faster which can achieve real-time effect, resulting in improved the intuitiveness of deformation.