Sensors 2010, 10(9), 8198-8214; doi:10.3390/s100908198
Article

Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features

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Received: 20 July 2010; in revised form: 19 August 2010 / Accepted: 20 August 2010 / Published: 1 September 2010
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in The Netherlands)
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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: Airborne Laser Scanning; altimetry; accuracy assessment; strip adjustment; planar features; least-squares estimation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Sande, C.; Soudarissanane, S.; Khoshelham, K. Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features. Sensors 2010, 10, 8198-8214.

AMA Style

Sande C, Soudarissanane S, Khoshelham K. Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features. Sensors. 2010; 10(9):8198-8214.

Chicago/Turabian Style

Sande, Corné van der; Soudarissanane, Sylvie; Khoshelham, Kourosh. 2010. "Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features." Sensors 10, no. 9: 8198-8214.


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