RAPID: Laser Scanning Technology for Damage Assessment after the January 12, 2010 Haiti Earthquake

该项目的重点是使用能够测量空间中大型物体的激光扫描仪，这是地震事件后进行结构评估的重要属性。一个代表结构的三维点云？S表面作为激光扫描的结果。我们将所有的激光扫描以测量等级的精度进行地理参考，使我们能够创建一个照片图像和激光扫描的组合数据库。我们将扫描一系列不同受损状态的建筑物，特别是在太子港的两个样本街区，这些街区之前由世界银行从航空照片和两名小组成员使用地面监视进行了调查。在这两个城市街区中，大约有45座建筑受到了不同程度的破坏。这项工作的一个目标是看扫描是否是证实航空调查所造成损害的适当方法。该项目将首次提供有关使用高清晰度激光扫描的信息，以及在重大灾害后的侦察工作中使用这种先进技术的优点和困难。这种独特的现场测量部署将为基于图像的遥感评估提供重要基准，并为我们利用该项目收集的详细数据对结构系统进行损伤评估的能力提供未来的进步。激光扫描和其他常规数据，例如材料特性和设计数据的收集将提高我们在美国或世界范围内类似灾害情况下的准备工作。收集到的信息将有助于指导美国为海地重建提供援助。

The project focuses on using laser scanners capable of measuring large objects in space, an important attribute for structural assessment after an earthquake event. A 3D point cloud representing the structure?s surface is delivered as the outcome of the laser scanning. We will have all laser scans geo-referenced at surveying grade accuracy allowing us to create a combined database of photo images and the laser scans. We will scan an array of buildings in different damage states, particularly in two of the sample blocks in Port-au-Prince previously surveyed by both the World Bank from the aerial photos and by two members of the team using on-the-ground surveillance. There are approximately 45 buildings in these two city blocks with a range of damage states. One objective of this effort is to see if the scanning would be an appropriate way to corroborate damage from aerial surveys. The project will provide information for the first time on the use of high definition laser scanning and the merits and difficulties of using this advanced technology in a reconnaissance effort after a major disaster. This unique deployment of field measurements will provide an important benchmark for image-based remote sensing evaluation and future advancement of our capabilities for damage assessment of structural systems using the collected detailed data in this project. The laser scanning and other conventional data, e.g. material properties and collection of design data will improve our preparedness in situations of similar disasters in the US or worldwide. The information gathered will be instrumental in guiding the delivery of US aid for the reconstruction of Haiti.