Approximate image-based tree-modeling using particle flows

被引：138

作者：

Neubert, Boris ^{[1
]}

Franken, Thomas ^{[1
]}

Deussen, Oliver ^{[1
]}

机构：

[1] Univ Konstanz, D-7750 Constance, Germany

来源：

ACM TRANSACTIONS ON GRAPHICS | 2007年 / 26卷 / 03期

关键词：

image-based modeling; plant models; botanics;

D O I：

10.1145/1239451.1239539

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

We present a method for producing 3D tree models from input photographs with only limited user intervention. An approximate voxel-based tree volume is estimated using image information. The density values of the voxels are used to produce initial positions for a set of particles. Performing a 3D flow simulation, the particles are traced downwards to the tree basis and are combined to form twigs and branches. If possible, the trunk and the first-order branches are determined in the input photographs and are used as attractors for particle simulation. The geometry of the tree skeleton is produced using botanical rules for branch thicknesses and branching angles. Finally, leaves are added. Different initial seeds for particle simulation lead to a variety, yet similar-looking branching structures for a single set of photographs.

引用

页数：7

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