期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-3/W49B
页码：173-178
出版社：Copernicus Publications
摘要：LiDAR technology became an indispensable airborne mapping tool in recent years and is the primary source of highly accurate surface data at large scale. Although, the ranging accuracy of the laser sensor strongly depends on the surface characteristics, by and large, it falls in to the few cm range. This also implies that the achieved accuracy of a LiDAR system, defined in terms of the absolute accuracy of the laser points, is predominantly determined by the quality of the navigation solution (typically based on GPS/IMU sensor integration). Despite significant advancements in navigation technologies recently, to achieve and sustain a high accuracy navigation solution of an airborne platform for extended time is still a difficult task. Furthermore, there is no reliable way to assess the positioning quality of the data captured by any imaging sensor systems, which are based on direct georeferencing. Therefore, using some ground control is almost mandatory if high accuracy is required. This paper introduces a method to use road pavement marking as ground control that could be used for QA/QC. These linear features are widely available in urban areas and along transportation corridors, where most of the government and commercial mapping takes place. A key advantage of using pavement markings is that they can be quickly surveyed with GPS VRS technique
