计算机应用 ›› 2015, Vol. 35 ›› Issue (4): 1110-1115.DOI: 10.11772/j.issn.1001-9081.2015.04.1110

• 虚拟现实与数字媒体 • 上一篇    下一篇

基于生长动力学的芦苇属植株虚拟生长模型

唐卫东1, 李萍萍2, 李金忠3   

  1. 1. 井冈山大学 电子与信息工程学院, 江西 吉安 343009;
    2. 现代农业装备与技术省部共建教育部重点实验室(江苏大学), 江苏 镇江 212013;
    3. 同济大学 电子与信息工程学院, 上海 201804
  • 收稿日期:2014-11-06 修回日期:2015-01-05 出版日期:2015-04-10 发布日期:2015-04-08
  • 通讯作者: 唐卫东
  • 作者简介:唐卫东(1974-),男,江西吉安人,副教授,博士,主要研究方向:虚拟植物、信息可视化; 李萍萍(1956-),女,浙江宁波人,教授,博士生导师,主要研究方向:植物生长建模; 李金忠(1976-),男,江西吉安人,副教授,博士研究生,主要研究方向:人工智能。
  • 基金资助:

    国家自然科学基金资助项目(30771259, 31071327);江西省教育厅2012年度科技计划项目(GJJ12465);井冈山大学博士科研启动项目(JGSU201111)。

Virtual development model of plant-reed based on growth kinetics

TANG Weidong1, LI Pingping2, LI Jinzhong3   

  1. 1. School of Electronics and Information Engineering, Jinggangshan University, Ji'an Jiangxi 343009, China;
    2. Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education and Jiangsu Province (Jiangsu University), Zhenjiang Jiangsu 212013, China;
    3. School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China
  • Received:2014-11-06 Revised:2015-01-05 Online:2015-04-10 Published:2015-04-08

摘要:

针对植株形态建模过程中由于缺乏生理生态特性而导致模型无法真实再现植株生长发育规律的问题,提出了一种基于生长动力学的植株形态变化模型构建方法。以芦苇属植株为例,首先研究了植株生长动力学特性,并以有效积温、生长速率变化等为驱动力构造了植株形态建成模型;其次,应用开放式L系统(Open-L)方法描述了植株冠层拓扑演变过程;最后,通过耦合植株拓扑与器官形体的几何模型及显示模型,给出了植株虚拟生长模型构建算法。实验结果表明,该方法实现了植株形态的可视化,并反映了植物生长机理,有利于动态掌握和预测植物生长发育状况。

关键词: 生长动力学, 芦苇属植株, 形态, 虚拟生长

Abstract:

Due to the lack of physiological and ecological characteristics while modeling plant morphology, the law of plant development cannot be expressed in the model. To solve this problem, a new plant morphology modeling method was proposed based on growth kinetics. Taking the plant-reed as an example, firstly, the growth kinetics of plant was studied, and the morphological model of plant was constructed based on the effective accumulated temperature and growth rate. Then the topological change of plant canopy structure was described using Open L-systems (Open-L) method. Finally, the algorithm of constructing virtual plant development model was presented by coupling with the geometric model and displaying model of plant topology and organs. The simulation results demonstrate that the proposed method is effective and feasible in visualizing the morphogenesis of plant and reflecting its growth mechanism, which also provides valuable evidences for dynamical control and prediction of plant development.

Key words: growth kinetics, plant-reed, morphogenesis, virtual development

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