Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features
Open Access
- 31 August 2010
- Vol. 10 (9), 8198-8214
- https://doi.org/10.3390/s100908198
Abstract
AHN-2 is the second part of the Actueel Hoogtebestand Nederland project, which concerns the acquisition of high-resolution altimetry data over the entire Netherlands using airborne laser scanning. The accuracy assessment of laser altimetry data usually relies on comparing corresponding tie elements, often points or lines, in the overlapping strips. This paper proposes a new approach to strip adjustment and accuracy assessment of AHN-2 data by using planar features. In the proposed approach a transformation is estimated between two overlapping strips by minimizing the distances between points in one strip and their corresponding planes in the other. The planes and the corresponding points are extracted in an automated segmentation process. The point-to-plane distances are used as observables in an estimation model, whereby the parameters of a transformation between the two strips and their associated quality measures are estimated. We demonstrate the performance of the method for the accuracy assessment of the AHN-2 dataset over Zeeland province of The Netherlands. The results show vertical offsets of up to 4 cm between the overlapping strips, and horizontal offsets ranging from 2 cm to 34 cm.Keywords
This publication has 17 references indexed in Scilit:
- A Simplified Analytical Model for a-priori Lidar Point-positioning Error Estimation and a Review of Lidar Error SourcesPhotogrammetric Engineering & Remote Sensing, 2009
- Alternative Methodologies for the Internal Quality Control of Parallel LiDAR StripsIEEE Transactions on Geoscience and Remote Sensing, 2009
- Error Budget of Lidar Systems and Quality Control of the Derived DataPhotogrammetric Engineering & Remote Sensing, 2009
- Adjustment of Discrepancies Between LIDAR Data Strips Using Linear FeaturesIEEE Geoscience and Remote Sensing Letters, 2007
- Improvement of Lidar Data Accuracy Using Lidar-Specific Ground TargetsPhotogrammetric Engineering & Remote Sensing, 2007
- Accuracy of Airborne Lidar-Derived ElevationPhotogrammetric Engineering & Remote Sensing, 2004
- Recovery of Systematic Biases in Laser Altimetry Data Using Natural SurfacesPhotogrammetric Engineering & Remote Sensing, 2003
- Estimating relative lidar accuracy information from overlapping flight linesISPRS Journal of Photogrammetry and Remote Sensing, 2002
- Airborne laser scanning: basic relations and formulasISPRS Journal of Photogrammetry and Remote Sensing, 1999
- Errors and accuracy estimates of laser data acquired by various laser scanning systems for topographic applicationsISPRS Journal of Photogrammetry and Remote Sensing, 1998