基于多角度图像的水稻稻谷几何建模方法研究

摘要

为实现水稻稻谷的几何建模和真实感显示,本文提出了一种基于多角度图像的稻谷三维形态建模方法。利用数字视频显微镜采集稻谷的显微图像,提取稻谷图像边缘点的二维形态特征参数;通过几何变换将二维参数转换成三维形态特征参数;最后,用B样条曲线曲面拟合的方法实现了水稻稻谷的三维重建,并使用纹理贴图和光照处理来增强真实感。结果表明,本方法重建的稻谷具有较强的真实感,为稻麦谷粒的可视化仿真提供了可行的方法。%A method based on multi-perspective images is presented for 3D rice grain modeling.Firstly,feature images of rice grain are captured using digital video microscope and 2D feature data of rice grain is extracted.Secondly,2D data is translated into 3D data by geometric transformation.Finally,the rice grain geometric model is reconstructed using B-splines fitting method based on 3D data.Furthermore,texture mapping and lighting are used to improve realistic of grain model.The experimental results show that the visualization model has realistic effect and provide a feasible method for grain＇s model.