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Verification of a 3-D terrain mapping LADAR on various materials in different environments

[+] Author Affiliations
Lulu Edwards

GM-A, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180

E. Ray Brown

GM-A, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180

Sarah R. Jersey

GM-A, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180

J. Electron. Imaging. 19(1), 013004 (February 02, 2010). doi:10.1117/1.3298909
History: Received May 18, 2009; Revised November 01, 2009; Accepted December 10, 2009; Published February 02, 2010; Online February 02, 2010
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A field validation of a laser detection and ranging (LADAR) system was conducted by the U.S. Army Engineer Research and Development Center (ERDC), Vicksburg, Mississippi. The LADAR system, a commercial-off-the-shelf (COTS) LADAR system custom-modified by Autonomous Solutions, Inc. (ASI), was tested for accuracy in measuring terrain geometry. A verification method was developed to compare the LADAR dataset to a ground-truth dataset that consisted of total station measurements. Three control points were measured and used to align the two datasets. The influence of slopes, surface materials, light, fog, and dust were investigated. The study revealed that slopes only affected measurements when the terrain was obscured from the LADAR system, and ambient light conditions did not significantly affect the LADAR measurements. The accuracy of the LADAR system, which was equipped with fog correction, was adversely affected by particles suspended in air, such as fog or dust. Also, in some cases the material type had an effect on the accuracy of the LADAR measurements.

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© 2010 SPIE and IS&T

Topics

LIDAR

Citation

Lulu Edwards ; E. Ray Brown and Sarah R. Jersey
"Verification of a 3-D terrain mapping LADAR on various materials in different environments", J. Electron. Imaging. 19(1), 013004 (February 02, 2010). ; http://dx.doi.org/10.1117/1.3298909


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