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Co-registration of laser altimeter tracks with digital terrain models and applications in planetary science

Gläser, P. and Haase, I. and Oberst, J. and Neumann, G.A. (2013) Co-registration of laser altimeter tracks with digital terrain models and applications in planetary science. Planetary and Space Science, 89, 111 - 117. Elsevier. DOI: 10.1016/j.pss.2013.09.012 ISSN 0032-0633

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S0032063313002390

Abstract

We have derived algorithms and techniques to precisely co-register laser altimeter profiles with gridded Digital Terrain Models (DTMs), typically derived from stereo images. The algorithm consists of an initial grid search followed by a least-squares matching and yields the translation parameters at sub-pixel level needed to align the DTM and the laser profiles in 3D space. This software tool was primarily developed and tested for co-registration of laser profiles from the Lunar Orbiter Laser Altimeter (LOLA) with DTMs derived from the Lunar Reconnaissance Orbiter (LRO) Narrow Angle Camera (NAC) stereo images. Data sets can be co-registered with positional accuracy between 0.13 m and several meters depending on the pixel resolution and amount of laser shots, where rough surfaces typically result in more accurate co-registrations. Residual heights of the data sets are as small as 0.18 m. The software can be used to identify instrument misalignment, orbit errors, pointing jitter, or problems associated with reference frames being used. Also, assessments of DTM effective resolutions can be obtained. From the correct position between the two data sets, comparisons of surface morphology and roughness can be made at laser footprint- or DTM pixel-level. The precise co-registration allows us to carry out joint analysis of the data sets and ultimately to derive merged high-quality data products. Examples of matching other planetary data sets, like LOLA with LRO Wide Angle Camera (WAC) DTMs or Mars Orbiter Laser Altimeter (MOLA) with stereo models from the High Resolution Stereo Camera (HRSC) as well as Mercury Laser Altimeter (MLA) with Mercury Dual Imaging System (MDIS) are shown to demonstrate the broad science applications of the software tool.

Item URL in elib:https://elib.dlr.de/119119/
Document Type:Article
Title:Co-registration of laser altimeter tracks with digital terrain models and applications in planetary science
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gläser, P.Technical University Berlin, Institute for Geodesy and Geoinformation Sciences, BerlinUNSPECIFIED
Haase, I.Technical University Berlin, Institute for Geodesy and Geoinformation Sciences, BerlinUNSPECIFIED
Oberst, J.Juergen.Oberst (at) dlr.deUNSPECIFIED
Neumann, G.A.NASA Goddard Space Flight Center, Greenbelt, MD 20771UNSPECIFIED
Date:December 2013
Journal or Publication Title:Planetary and Space Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:89
DOI :10.1016/j.pss.2013.09.012
Page Range:111 - 117
Publisher:Elsevier
ISSN:0032-0633
Status:Published
Keywords:Co-registration, LOLA, Laser, DTM, LROC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Wählisch, Marita
Deposited On:19 Mar 2018 11:14
Last Modified:19 Mar 2018 11:14

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