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SYSTEM FOR DIGITAL ELEVATION MODEL GENERATION FROM LIDAR DATA

S. Pecnik, D. Mongus, B. Zalik

First published: 2010DOI pendingView metrics

Abstract

Recent advances in remote sensing have changed conventional ways of collecting and processing elevation data. Especially Light Detection and Ranging (LiDAR) has become one of the leading technologies for rapid acquisition of elevation data. In this paper we present a system for digital elevation model (DEM) construction from LiDAR data. First, we present a visualization technique that allows efficient representation for LiDAR data processing. This makes the data segmentation, which is the key step in DEM generation, possible to be performed efficiently, with higher precision, and reliable. For the purpose of the data segmentation, points can be projected on an arbitrary plane, parallel with Z axis (cross section). This allows users to get better control over the points by allowing measurements of distances and angles between them. After the ground points are obtained, DEM can be generated. Usually ground points are re-sampled first into a required DEM grid resolution and then triangulated.

Publication details

Title
SYSTEM FOR DIGITAL ELEVATION MODEL GENERATION FROM LIDAR DATA
Authors
S. Pecnik, D. Mongus, B. Zalik
Proceedings
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publisher
SGEM Scientific GeoConference
Year
2010
Pages
957-964
SWS Citekey
Pecnik201087
ISSN
1314-2704
ISBN
954-91818-1-2
Language
en
Publication type
Conference Paper
Keywords
Light Detection and Rangingdigital elevation modelpoint visualizationsegmentationtriangulation
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