CAJ | 학술논문

针对室外含笑树叶存在抖动及树叶间存在遮挡，导致含笑树叶点云数据不易重建与形变的问题。提出了一种含笑树叶重建与形变的方法，首先根据噪声特点和扫描线特性，对点云数据去噪；然后根据每条扫描线边缘点拟合出树叶的边缘，采用双三次广义张量积Bezier曲面拟合叶面，并结合三角剖分算法实现叶面的重建；最后采用基于非线性的有限元形变方法，模拟出真实的含笑树叶形变。实验结果表明，该算法简单高效。
침대실외함소수협존재두동급수협간존재차당，도치함소수협점운수거불역중건여형변적문제。제출료일충함소수협중건여형변적방법，수선근거조성특점화소묘선특성，대점운수거거조；연후근거매조소묘선변연점의합출수협적변연，채용쌍삼차엄의장량적Bezier곡면의합협면，병결합삼각부분산법실현협면적중건；최후채용기우비선성적유한원형변방법，모의출진실적함소수협형변。실험결과표명，해산법간단고효。
Due to banana shrub tree leave quivering and blocking between tree leaves, it is not easy to realize reconstruction and deformation of banana shrub tree leaves based on laser point cloud. A method for reconstruction and deformation of banana shrub tree leaves is put forward. First, point cloud data are denoised based on the characteristics of noise and scan lines;then, conduct fitting of tree leaves according to the edge points of each scan line, with bicubic generalized tensor product Bezier surface for leave surface fitting, with triangulation algorithm used to realize reconstruction of leaves;finally, a method based on non-linear finite element deformation is adopted to simulate the real deformation of banana shrub trees. The experimental result shows that this algorithm is simple and efficient.