Simulation of morphology changes in drying leaves

Sohyeon Jeong, Si Hyung Park, Chang Hun Kim

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We introduce a biologically motivated simulation technique for the realistic shape deformation of drying leaves. In contrast to skeleton-based leaf deformation, our approach simulates the whole leaf surface to capture the fine details of desiccated leaves. We represent a leaf as a triangulated double-layer structure that consists of a Delaunay triangulation discretized along the vein structure and its corresponding Voronoi diagram. This structure can generate not only sharp creases along leaf veins, but also the complicated curling and crumpling on the leaf surface. The loss of water is the major factor that controls the inhomogeneous shrinkage of drying leaves. The proposed osmotic water flow successfully models the gradual changes of dehydrated regions advancing towards the veins. We demonstrate the robustness of our method by comparing a sequence of simulated morphology changes with photographs of real leaves.

Original languageEnglish
Pages (from-to)204-215
Number of pages12
JournalComputer Graphics Forum
Volume32
Issue number1
DOIs
Publication statusPublished - 2013 Feb

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Keywords

  • osmotic water flow
  • triangle-Voronoi double-layer structure

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design

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