- Tytuł:
-
Metoda szacowania liczby drzew w drzewostanie sosnowym z wykorzystaniem danych ALS oraz ortoobrazów
Method of the tree number estimation in the pine stand using ALS data and true orthoimages - Autorzy:
-
Wężyk, P.
Tompalski, P.
de Kok, R.
Szostak, M.
Kukawski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1008999.pdf
- Data publikacji:
- 2010
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
drzewostany sosnowe
liczba drzew
drzewa lesne
rozmieszczenie przestrzenne
metody badan
lotniczy skaning laserowy
Numeryczny Model Koron
klasyfikacja obiektowa
obrazy wielospektralne
integracja danych
number of trees
tree density
airborne laser scanning
true orthoimage - Opis:
- Paper presents a method of estimation the number of trees and their density in Scots pine (Pinus sylvestris L.) stand based on airborne laser scanning data (ALS cloud point) and pas−sive line scanner (true orthoimage RGB/NIR). The analysis was performed on selected part of a 107−year−old stand in the Milicz Forest District (Poland). On−screen digitised shapes and centroid of crowns were used as a reference data (number of trees). Different approaches were applied for automatically determine the number of trees and their positions. The first approach, called ‘GIS watershed', was based on the canopy modelling of the ALS cloud point data. The other one, called ‘OBIA', was based on segmentation and classification of the true orthoimage (CIR). The third method – ‘data fusion' – was an integrated approach of the previous methods.. Different GIS spatial analyses were used to compare the results from all ap−proaches with the reference data. The results indicate that both datasets (ALS cloud point and true orthoimage) can be used for estimation of the number of trees in old Scots pine stand.
- Źródło:
-
Sylwan; 2010, 154, 11; 773-782
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki