Wrinkle and curl distortion of leaves using plant dynamic

IF 2.5 4区计算机科学 Q2 COMPUTER SCIENCE, SOFTWARE ENGINEERING Graphical Models Pub Date : 2021-11-01 DOI:10.1016/j.gmod.2021.101118

Xiaopeng Sun , Jia Fu , Teng Chen , Yu Dong

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引用次数: 1

Abstract

An algorithm was proposed to simulate the withering deformation of plant leaves by wrinkle and curl due to dehydration, based on cell dynamics and time-varying external force. First, a leaf boundary expansion algorithm was proposed to locate the feature points on the tip of the vein and construct the primary vein using a discrete geodesic path. Second, a novel mass-spring system by cell dynamics and a non-uniform mass distribution was defined to accelerate the movement of the boundary cells. Third, the cell swelling force was defined and adjusted to generate wrinkle deformation along with dehydration. Fourth, the time-varying external force on the feature points was defined to generate the curl deformation by adjusting the initial value of the external force and multiple iterative parameters. The implicit midpoint method was used to solve the equation of motion. The experimental results showed that our algorithm could simulate the wrinkle and curl deformation caused by dehydration and withering of leaves with high authenticity.

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利用植物动态分析叶片的皱折和卷曲变形

提出了一种基于细胞动力学和时变外力的植物叶片脱水皱缩变形模拟算法。首先，提出叶片边界扩展算法，定位叶脉尖端的特征点，并利用离散测地线路径构造主叶脉;其次，定义了一种基于细胞动力学和非均匀质量分布的质量-弹簧系统来加速边界细胞的运动;第三，定义并调整细胞膨胀力，使其在脱水过程中产生皱纹变形。第四，定义作用在特征点上的时变外力，通过调整外力初始值和多个迭代参数产生旋度变形;采用隐式中点法求解运动方程。实验结果表明，该算法能够较好地模拟叶片因脱水和枯萎而产生的皱折和卷曲变形，具有较高的真实性。

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来源期刊

Graphical Models 工程技术-计算机：软件工程

CiteScore

3.60

自引率

5.90%

发文量

审稿时长

47 days

期刊介绍： Graphical Models is recognized internationally as a highly rated, top tier journal and is focused on the creation, geometric processing, animation, and visualization of graphical models and on their applications in engineering, science, culture, and entertainment. GMOD provides its readers with thoroughly reviewed and carefully selected papers that disseminate exciting innovations, that teach rigorous theoretical foundations, that propose robust and efficient solutions, or that describe ambitious systems or applications in a variety of topics. We invite papers in five categories: research (contributions of novel theoretical or practical approaches or solutions), survey (opinionated views of the state-of-the-art and challenges in a specific topic), system (the architecture and implementation details of an innovative architecture for a complete system that supports model/animation design, acquisition, analysis, visualization?), application (description of a novel application of know techniques and evaluation of its impact), or lecture (an elegant and inspiring perspective on previously published results that clarifies them and teaches them in a new way). GMOD offers its authors an accelerated review, feedback from experts in the field, immediate online publication of accepted papers, no restriction on color and length (when justified by the content) in the online version, and a broad promotion of published papers. A prestigious group of editors selected from among the premier international researchers in their fields oversees the review process.