基于脉序骨架的小麦叶精细建模研究

Venation Skeleton-based Modeling of Wheat Leaf

为了实现小麦叶形态结构的三维可视化,基于小麦叶的脉序特征,提出了基于脉序骨架的小麦叶片三维几何建模方法。用B样条曲线表示小麦叶片和叶鞘上的叶脉曲线,用球B样条模拟叶片和叶鞘上的叶脉骨架,再连接已生成的叶脉骨架上相应的点生成叶片和叶鞘上叶脉之间的叶肉,建立了具有明显的叶脉分布和厚度的小麦叶几何模型。该方法可用于其它平行叶脉植物叶片的精细建模,具有较好的真实感。

Based on morphological structure of plant leaf,we construct a 3D geometrical model of plant leaf.The implementation of our modeling method is illustrated by wheat leaf,which has parallel leaf venations.B-spline curve was used to generate leaf venation skeleton in wheat blade and wheat sheath,and then ball B-spline was used to generate leaf venation in wheat blade and wheat sheath.Furthermore,mesophyll was generated in wheat blade and sheath based on leaf venation skeleton.The experimental results show that the visualization model has highly realistic effect and can also be expanded to modeling of other plants' leaves.