[1]王龙飞,彭 军,杨 乐*,等.基于插值NURBS曲面的马铃薯叶片3维重建[J].江西师范大学学报(自然科学版),2023,(06):637-644.[doi:10.16357/j.cnki.issn1000-5862.2023.06.11]
　WANG Longfei,PENG Jun,YANG Le*,et al.The 3D Reconstruction of Potato Leaves Based on Interpolated NURBS Surfaces[J].Journal of Jiangxi Normal University:Natural Science Edition,2023,(06):637-644.[doi:10.16357/j.cnki.issn1000-5862.2023.06.11]
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基于插值NURBS曲面的马铃薯叶片3维重建()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年06期
页码:
637-644
栏目:
信息科学与技术
出版日期:
2023-11-25

文章信息/Info

Title:
The 3D Reconstruction of Potato Leaves Based on Interpolated NURBS Surfaces
文章编号:
1000-5862(2023)-06-0637-08
作者:
王龙飞; 彭 军; 杨 乐*; 李紫怡; 刘欣宇
(江西农业大学计算机与信息工程学院,江西 南昌 330045)
Author(s):
WANG Longfei; PENG Jun; YANG Le*; LI Ziyi; LIU Xinyu
(School of Computer and Information Engineering,Jiangxi Agricultural University,Nanchang Jiangxi 330045,China)
关键词:
虚拟作物技术;  马铃薯叶片;  非均匀有理B样条(NURBS);  形态特征;  3维重建
Keywords:
virtual crop technology;  potato leaves;  NURBS;  morphological features;  three-dimensional reconstruction
分类号:
TP 391.9; S 126
DOI:
10.16357/j.cnki.issn1000-5862.2023.06.11
文献标志码:
A
摘要:
随着计算机虚拟技术的迅速发展,虚拟作物技术已成为水稻、小麦、玉米等农作物生长发育状况研究的重要工具.现有关于农作物叶片3维重建的研究主要关注叶片的正面表面,而忽略了背面构造.该文针对农作物叶片3维重建问题,选取马铃薯叶片作为研究对象.首先,利用马铃薯叶片的实测数据和标记数据,结合非均匀有理B样条(NURBS)曲面重构技术,通过控制点的反算方法及权重因子插值曲面算法,确定插值NURBS曲面的节点矢量、控制点、权重因子等相关参数; 其次,采用插值NURBS曲线的方法对叶脉进行3维重建; 最后,使用VisMPL和VisVTK对曲面进行颜色渲染和绘制,并引入曲面容器将叶正面、叶背面和叶柄的插值NURBS曲面进行融合.实验结果表明:基于传统方法,该方法通过增加叶片背面的构造,在重建马铃薯叶片的3维曲面模型上表现出色,有效实现了马铃薯叶片形态特征的3维重建,为马铃薯叶片研究提供技术支持.
Abstract:
With the rapid development of computer virtual technology,virtual crop technology has become an important tool for the study of the growth and development status of rice,wheat,corn and other crops.The existing research on iterative reconstruction of crop leaves mainly focuses on the front surface of the leaves,while ignoring the back structure.In this study,potato leaves are selected as the object of study for the problem of crop leaf 3D reconstruction.Firstly,using the measured data and marked data of potato leaves,combined with the non-uniform rational B spline(NURBS)surface reconstruction technique,the node vector,control points,weight factors and other relevant parameters of the interpolated NURBS surface are determined by the control point back calculation method and the weight factor fitting interpolated surface algorithm.Secondly the iterative reconstruction of leaf veins is performed by the interpolation NURBS curve method.Finally the color rendering and drawing of the surfaces are made using VisMPL and VisVTK,and surface containers are introduced to fuse the interpolated NURBS surfaces of the front, back,and petiole of the leaves.The results show that the method in this paper is based on the traditional method with the addition of the abaxial surface structure of the leaf, and performs well in reconstructing the 3D surface model of the potato leaf,the three-dimensional reconstruction of potato leaf morphological features is effectively achieved,which provides technical support for potato leaf research.

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备注/Memo

备注/Memo:
收稿日期:2023-06-19
基金项目:国家自然科学基金(61862032)和江西省教育厅科技计划课题(GJJ210432)资助项目.
更新日期/Last Update: 2023-11-25