@InProceedings{DevriendtCoWuBeKeVaMo:2012:ClUnFo,
author = "Devriendt, Flore and Coillie, Frieke Van and Wulf, Robert De and
Bertels, L. and Kempeneers, P. and Vandekerkhove, K. and Morsdorf,
F.",
title = "Classification of unmanaged forest reserves in Flanders (Belgium)
at the tree crown level using airborne hyperspectral and LiDAR
data",
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 = "141--145",
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 = "Hyperspectral, LiDAR, Image segmentation, Crown delineation,
Classification, Unmanaged forests.",
abstract = "Focusing on unmanaged forest reserves in Flanders (Belgium), we
present an approach for the generation of tree species maps at the
tree crown level using hyperspectral CASI imagery and full
waveform LiDAR data. Unmanaged forest reserves are characterized
by growth stage diversity, high crown closure, multi-layering of
the canopy and the non-existence of a pre-ordered spatial tree
distribution. To be able to classify trees at the tree crown level
in these highly structured closed forests, an algorithm for
delineating tree crowns need to be developed that can handle a)
expansive crowns with large branches exhibiting a huge amount of
within-crown shadow, and b) crowns belonging to the sub-canopy
that are partially overtopped or shadowed by neighbours. Using the
LiDAR-derived canopy height model (CHM), a tree detection
algorithm based on a Directional Local Filtering (DLF) is applied
prior to crown delineation to automatically locate individual tree
crowns. Tree crowns are subsequently outlined using object-based
decision rules developed in eCognition. Following tree crown
delineation, the mean-lit spectra derived from the hyperspectral
CASI data of individual tree crowns are extracted to identify tree
species.",
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/3BT7CQS",
url = "http://urlib.net/ibi/8JMKD3MGP8W/3BT7CQS",
targetfile = "043.pdf",
type = "Forest Analysis",
urlaccessdate = "2024, May 02"
}