草莓三维形态几何建模与真实感绘制

Techniques for Modeling 3-D Shape and Realistic Rendering of Strawberry

为了实现草莓形态结构的三维可视化模拟,笔者提出了一种基于球B-样条的草莓器官几何建模方法,通过对草莓形态结构的观测分析,分别创建草莓茎、叶片、单花和果实等主要器官的几何模型,并提取了具有明确农学意义的几何模型参数;同时利用模板与纹理贴图等真实感渲染技术描述了草莓植株的局部细节特征,增加了模型的真实感。笔者提出的草莓三维形态建模方法易于与农业知识结合,且重构的形态模型具有较好的真实感效果,为草莓三维形态的交互设计和形态模拟提供了可用的方法和手段。

This paper aims to provide techniques for 3-D digital design and visual simulation of strawberry. Based on the analysis and observation of the morphological structure of strawberry,ball B-splines based method has been used for modeling the shape of strawberry organs,with use of template technology to describe local detail features and to augment the realistic effects,and several principal control parameters with explicit biological background for these geometric models of organs were extracted. The proposed methods for modeling the 3-D shape of organs and simulating strawberry could be integrated easily with agricultural knowledge,and the generated morphological models have realistic effects. The flexibility and suitability of the proposed methods can be applied to the visual simulation of the different varieties of strawberry.