Terrain classification of ladar data for bare earth determination

Amy L. Neuenschwander; Lori A. Magruder

doi:10.1117/12.884128

7 June 2011 Terrain classification of ladar data for bare earth determination

Proceedings Volume 8037, Laser Radar Technology and Applications XVI; 80370E (2011) https://doi.org/10.1117/12.884128
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Terrain classification, or bare earth extraction, is an important component to LADAR data analysis. The terrain classification approach presented in this effort utilizes an adaptive lower envelope follower (ALEF) with an adaptive gradient operation for accommodations of local topography and roughness. In order to create a more robust capability, the ALEF was modified to become a strictly data driven process that facilitates a quick production of the data product without the subjective component associated with user inputs. This automated technique was tested on existing LADAR surveys over Wyoming's Powder River Basin and the John Starr Memorial Forest in Mississippi, both locations with dynamic topographic features. The results indicate a useful approach in terms of operational time and accuracy of the final bare earth recovery with the advantage of being fully data driven.

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Amy L. Neuenschwander and Lori A. Magruder "Terrain classification of ladar data for bare earth determination", Proc. SPIE 8037, Laser Radar Technology and Applications XVI, 80370E (7 June 2011); https://doi.org/10.1117/12.884128

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KEYWORDS

LIDAR

Vegetation

Surface roughness

Data modeling

Data acquisition

Algorithm development

Digital filtering

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