Advances in terrestrial laser scanning

在这项研究计划中，我们将开发新的方法来处理和分析地面激光扫描数据，以及来自其他传感器的数据。该研究计划将确定如何最好地整合来自其他传感器（如无人机和高分辨率摄影）的数据与高分辨率扫描数据，以生成一个完全集成和空间一致的数据集。该研究计划将把这个增强的数据集应用到新的和创新的应用领域。这项研究将通过使用激光扫描仪提供结构变形的改进分析，通过提供特征的整个形状的表示。在包括全球定位系统在内的传统测量技术中，只能在少数坐标点上获得离散的变形数据，因此只能在有限数量的点上确定变形。利用激光扫描仪，我们将能够获得覆盖整个结构表面的潜在数百万个点的变形值。我们将开发利用地面激光扫描测量海岸线变化的技术。我们已经在Kouchibouguac国家公园用“传统”测量设备进行了一些初步工作;然而，增加地面激光扫描将大大提高对海岸侵蚀的估计，因为它可以从三维角度估计侵蚀，达到很高的精度，地面激光扫描作为一种地形测量方法的发展将发生。开发地面激光扫描进行地形测量将消除测量员选择放置反射器位置的必要性，因为整个地面都将以高分辨率进行测量。此外，建筑物和地面的扫描将使代表建筑物和土地的数据能够无缝地存在于同一数据集中。在进行空间分析查询时，这将是一个很大的优势。与UNB经典和古代历史系的教师现有的关系导致了扫描希腊大型古代考古遗址的可能性。例如，生成的数据集可用于研究建筑物对齐和可见性分析。与其他数据集的整合可以提供使用其他方法无法获得的古代结构的额外见解。 这些重大发展将使激光扫描和其他传感器能够创建更好的数据集。这将是使用大地测量工程师需要准确和精确的坐标，地球科学家研究的变化。三名博士生将参与这项工作，他们将获得一个激励的环境来进行背景研究，方法开发和实施。

In this research program, we will develop novel methods for the processing and analysis of terrestrial laser scanning data, and data from other sensors. This research program will determine how to best integrate data from other sensors such as UAVs and high resolution photography with high resolution scanning data to produce one fully integrated and spatially consistent dataset. The program of research will apply this enhanced dataset into new and innovative fields of application.This research will provide an improved analysis of the deformation of structures through the use of a laser scanner, by providing representation of the entire shape of a feature. In traditional surveying techniques, including GPS, only discrete deformation data can be obtained at a small number of coordinated points, and therefore deformation can only be determined at a limited number of points. With a laser scanner we will be able to obtain deformation values over potentially many millions of points covering the entire surface of a structure.We will develop techniques to measure changes in coastlines using terrestrial laser scanning. We have already carried out some preliminary work with “traditional” survey equipment at Kouchibouguac National Park; however, the addition of terrestrial laser scanning will greatly enhance the estimation of coastal erosion by estimating the erosion in three dimensions, to a high accuracy, over potentially millions of points covering the entire coastline surveyed.The development of terrestrial laser scanning as a method for carrying out topographic surveys will take place. The development of terrestrial laser scanning to carry out topographic surveying would remove the necessity of the surveyor choosing where to place the reflector since the entire ground surface would be surveyed to a high resolution. In addition, the scanning of buildings together with the ground would enable data representing buildings and land to exist in the same dataset seamlessly. This would be a great advantage when carrying out spatial analysis queries.An existing relationship with faculty in the Department of Classics and Ancient History at UNB has led to the possibility of scanning large ancient archaeological sites in Greece. The resultant dataset can be used to study building alignment and visibility analysis, for example. Integration with other datasets could provide additional insights in the ancient structures not available using other methods. These significant developments will enable improved datasets to be created from laser scanning and other sensors. It will be of use to geodetic engineers requiring accurate and precise coordinates, earth scientists studying the change. Three PhD students will be involved in the work, and they will be provided with a stimulating environment to carry out the background study, methodology development, and implementation.