Processing of laser radar data for the extraction of an along-the-levee-crown elevation profile for levee remediation studies

Michael J. Bishop; Thomas E. McGill; Stacy R. Taylor

doi:10.1117/12.536711

13 September 2004 Processing of laser radar data for the extraction of an along-the-levee-crown elevation profile for levee remediation studies

Michael J. Bishop, Thomas E. McGill, Stacy R. Taylor

Author Affiliations +

Proceedings Volume 5412, Laser Radar Technology and Applications IX; (2004) https://doi.org/10.1117/12.536711
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

Using LiDAR data collected on the levees along the Rio Grande River in New Mexico and Texas, an algorithm has been developed to automatically extract longitudinal elevation profiles. This algorithm consists of a series of filters, interpretation of geophysical properties, and digitized levee centerlines. The series of filters, in order of operation, include an alignment buffer filter, bare-earth filter, sampling filter and a maximum value filter. The result of the filter configuration is a 3-D polyline that models the levee crest. This algorithm allows for efficient identification of portions of levee that are lower than original design specifications. A comparison between the LiDAR levee crown extraction filter and a least-cost-path technique are offered.

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Michael J. Bishop, Thomas E. McGill, and Stacy R. Taylor "Processing of laser radar data for the extraction of an along-the-levee-crown elevation profile for levee remediation studies", Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); https://doi.org/10.1117/12.536711

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