论文标题
程序性城市林业
Procedural Urban Forestry
论文作者
论文摘要
植被的放置在虚拟场景的现实主义中起着核心作用。我们介绍了城市布局中的植被的程序放置模型（PPM）。 PPM对城市的几何形状对环境敏感，并允许根据城市布局中的结构和功能区域确定合理的植物位置。可以通过定义其参数直接使用PPM，也可以从卫星图像和土地注册数据中学到。加上生成建筑物和树木的方法，这使我们能够用复杂的3D植被填充城市景观。我们的框架的有效性是通过大规模城市场景和单独种植树型的特写镜头的示例来显示的；我们还通过感知用户研究对其进行了验证。
The placement of vegetation plays a central role in the realism of virtual scenes. We introduce procedural placement models (PPMs) for vegetation in urban layouts. PPMs are environmentally sensitive to city geometry and allow identifying plausible plant positions based on structural and functional zones in an urban layout. PPMs can either be directly used by defining their parameters or can be learned from satellite images and land register data. Together with approaches for generating buildings and trees, this allows us to populate urban landscapes with complex 3D vegetation. The effectiveness of our framework is shown through examples of large-scale city scenes and close-ups of individually grown tree models; we also validate it by a perceptual user study.
