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首页> 外文期刊>Mathematical Problems in Engineering: Theory, Methods and Applications >Automatic 3D City Modeling Using a Digital Map and Panoramic Images from a Mobile Mapping System
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Automatic 3D City Modeling Using a Digital Map and Panoramic Images from a Mobile Mapping System

机译：使用数字地图和来自移动制图系统的全景图像进行自动3D城市建模

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Three-dimensional city models are becoming a valuable resource because of their close geospatial, geometrical, and visual relationship with the physical world. However, ground-oriented applications in virtual reality, 3D navigation, and civil engineering require a novel modeling approach, because the existing large-scale 3D city modeling methods do not provide rich visual information at ground level. This paper proposes a new framework for generating 3D city models that satisfy both the visual and the physical requirements for ground-oriented virtual reality applications. To ensure its usability, the framework must be cost-effective and allow for automated creation. To achieve these goals, we leverage a mobile mapping system that automatically gathers high-resolution images and supplements sensor information such as the position and direction of the captured images. To resolve problems stemming from sensor noise and occlusions, we develop a fusion technique to incorporate digital map data. This paper describes the major processes of the overall framework and the proposed techniques for each step and presents experimental results from a comparison with an existing 3D city model.
机译：三维城市模型由于与物理世界紧密的地理空间，几何和视觉关系，正成为一种宝贵的资源。但是，虚拟现实，3D导航和土木工程中面向地面的应用程序需要一种新颖的建模方法，因为现有的大规模3D城市建模方法无法在地面上提供丰富的视觉信息。本文提出了一个新的框架，用于生成同时满足地面虚拟现实应用程序的视觉和物理要求的3D城市模型。为了确保其可用性，该框架必须具有成本效益并允许自动创建。为了实现这些目标，我们利用了一种移动制图系统，该系统可以自动收集高分辨率图像并补充传感器信息，例如捕获图像的位置和方向。为了解决由传感器噪声和遮挡引起的问题，我们开发了一种融合技术来合并数字地图数据。本文介绍了总体框架的主要过程以及每个步骤的拟议技术，并通过与现有3D城市模型进行比较得出实验结果。

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