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A framework for dynamic terrain with application in off-road ground vehicle simulations.

机译:动态地形的框架及其在越野地面车辆模拟中的应用。

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摘要

The dissertation develops a framework for the visualization of dynamic terrains for use in interactive real-time 3D systems. Terrain visualization techniques may be classified as either static or dynamic. Static terrain solutions simulate rigid surface types exclusively; whereas dynamic solutions can also represent non-rigid surfaces. Systems that employ a static terrain approach lack realism due to their rigid nature. Disregarding the accurate representation of terrain surface interaction is rationalized because of the inherent difficulties associated with providing runtime dynamism. Nonetheless, dynamic terrain systems are a more correct solution because they allow the terrain database to be modified at run-time for the purpose of deforming the surface. Many established techniques in terrain visualization rely on invalid assumptions and weak computational models that hinder the use of dynamic terrain. Moreover, many existing techniques do not exploit the capabilities offered by current computer hardware.; In this research, we present a component framework for terrain visualization that is useful in research, entertainment, and simulation systems. In addition, we present a novel method for deforming the terrain that can be used in real-time, interactive systems. The development of a component framework unifies disparate works under a single architecture. The high-level nature of the framework makes it flexible and adaptable for developing a variety of systems, independent of the static or dynamic nature of the solution. Currently, there are only a handful of documented deformation techniques and, in particular, none make explicit use of graphics hardware. The approach developed by this research offloads extra work to the graphics processing unit; in an effort to alleviate the overhead associated with deforming the terrain.; Off-road ground vehicle simulation is used as an application domain to demonstrate the practical nature of the framework and the deformation technique. In order to realistically simulate terrain surface interactivity with the vehicle, the solution balances visual fidelity and speed. Accurately depicting terrain surface interactivity in off-road ground vehicle simulations improves visual realism; thereby, increasing the significance and worth of the application. Systems in academia, government, and commercial institutes can make use of the research findings to achieve the real-time display of interactive terrain surfaces.
机译:论文开发了动态地形可视化的框架,用于交互式实时3D系统。地形可视化技术可以分为静态或动态。静态地形解决方案专门模拟刚性表面类型;动态解决方案也可以代表非刚性表面。由于静态特性,采用静态地形方法的系统缺乏真实感。由于提供运行时动态性存在固有的困难,因此忽略地形表面相互作用的准确表示是合理的。但是,动态地形系统是一种更正确的解决方案,因为它们允许在运行时修改地形数据库以使表面变形。地形可视化中许多成熟的技术都依赖无效的假设和弱化的计算模型,这些模型阻碍了动态地形的使用。而且,许多现有技术没有利用当前计算机硬件提供的功能。在这项研究中,我们提出了用于地形可视化的组件框架,该框架在研究,娱乐和模拟系统中很有用。此外,我们提出了一种可以在实时,交互式系统中使用的使地形变形的新颖方法。组件框架的开发统一了单一架构下的不同作品。框架的高级性质使其可以灵活地适应于开发各种系统,而与解决方案的静态或动态性质无关。当前,只有很少的文献记载的变形技术,尤其是没有一种方法明确使用图形硬件。这项研究开发的方法将额外的工作分担给图形处理单元。为了减轻与地形变形有关的开销。越野地面车辆仿真被用作一个应用领域,以证明框架和变形技术的实用性。为了真实地模拟与车辆的地形表面交互性,该解决方案平衡了视觉保真度和速度。在越野地面车辆模拟中准确描绘地形表面的交互性可改善视觉逼真度;从而增加了应用的意义和价值。学术界,政府和商业机构中的系统可以利用研究结果来实现交互式地形表面的实时显示。

著录项

  • 作者

    Aquilio, Anthony S.;

  • 作者单位

    Georgia State University.;

  • 授予单位 Georgia State University.;
  • 学科 Computer Science.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 203 p.
  • 总页数 203
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自动化技术、计算机技术;
  • 关键词

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