Venation Skeleton-based Modeling of Rice Leaf

A 3D geometrical model of plant leaf if constructed based on the morphological structure of plant leaf. The modeling method is illustrated by rice leaf as an example, which has a structure of leaf venations. We present a precise modeling method to model the plant leaf with parallel leaf venations. In the model, the leaf has apparent leaf venations and mesophyll. B-spline curve was used to generate leaf venation skeleton in rice blade and rice sheath, and then disk B-spline was used to generate leaf venation in rice blade and sheath. Furthermore, mesophyll was generated in rice 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.