@InProceedings{EeckhautKerlPoesHerv:2012:IdVeLa,
author = "Eeckhaut, Miet Van Den and Kerle, Norman and Poesen, Jean and
Herv{\'a}s, Javier",
title = "Identification of vegetated landslides using only a LiDAR-based
Terrain Model and derivatives in an object-oriented environment",
booktitle = "Proceedings...",
year = "2012",
editor = "Feitosa, Raul Queiroz and Costa, Gilson Alexandre Ostwald Pedro da
and Almeida, Cl{\'a}udia Maria de and Fonseca, Leila Maria Garcia
and Kux, Hermann Johann Heinrich",
pages = "211--216",
organization = "International Conference on Geographic Object-Based Image
Analysis, 4. (GEOBIA).",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
keywords = "Landslide identification, Dense vegetation, Conceptualisation,
LiDAR, Segmentation, Classification, Geomorphometry, Belgium,
Support vector machines.",
abstract = "Light Detection and Ranging (LiDAR) and its derivative products
have become a powerful tool in landslide research, particularly
for landslide identification and landslide inventory mapping. In
contrast to the many studies that use expert-based analysis of
LiDAR derivatives to identify landslides only few studies, all
pixel-based, have attempted to develop computer-aided methods for
extracting landslides from LiDAR. It has not been tested whether
object-oriented analysis (OOA) could be an alternative. Therefore,
this study investigates the application of OOA using 2 m
resolution slope gradient, roughness, curvature, and openness maps
calculated from single pulse LiDAR data, without the support of
any spectral information. More specifically, the focus is on the
possible use of these derivatives for segmentation and
classification of slow-moving landslides in densely vegetated
areas, where spectral data do not facilitate accurate landslide
identification. A semi-quantitative method based on support vector
machines (SVM) was developed for a test area in the Flemish
Ardennes (Belgium). The procedure was then applied without further
modification to a validation area in the same region. The results
show that OOA using LiDAR derivatives allows recognition and
characterization of profound morphologic properties of deep-seated
landslides on soil-covered hillslopes such as those in the Flemish
Ardennes, because approximately 70% of the landslides of an
expert-based inventory were also included in the object-oriented
inventory. For mountain areas with bedrock, on the other hand, it
is expected more difficult to create a transferable model.",
conference-location = "Rio de Janeiro",
conference-year = "May 7-9, 2012",
isbn = "978-85-17-00059-1",
language = "en",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP8W/3BTBB4P",
url = "http://urlib.net/ibi/8JMKD3MGP8W/3BTBB4P",
targetfile = "061.pdf",
type = "LiDAR and SAR Applications",
urlaccessdate = "20 maio 2024"
}