Aerial orthophoto and airborne laser scanning as monitoring tools for land cover dynamics: a case study from the Milicz Forest District (Poland)
PBN-AR
Instytucja
Wydział Leśny (Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie)
Książka
Tytuł książki
Satellite Technologies in Geoinformation Science
Data publikacji
2015
ISBN
978-3-0348-0849-1
Wydawca
Uniwersytet Wrocławski
Publikacja
Główny język publikacji
en
Tytuł rozdziału
Aerial orthophoto and airborne laser scanning as monitoring tools for land cover dynamics: a case study from the Milicz Forest District (Poland)
Rok publikacji
2015
Strony (od-do)
79-88
Numer rozdziału
Identyfikator DOI
Liczba arkuszy
0.5
Hasło encyklopedyczne
Autorzy
Słowa kluczowe
en
CIR aerial orthophoto, airborne laser scanning (ALS), object based image analysis (OBIA), GIS analysis, digital surface model (DSM), digital terrain model (DTM), secondary forest succession
Open access
Tryb otwartego dostępu
Inne
Wersja tekstu w otwartym dostępie
Oryginał autora
Licencja otwartego dostępu
Inna
Czas opublikowania w otwartym dostępie
Po publikacji
Ilość miesięcy od publikacji
Data udostępnienia w sposób otwarty
Streszczenia
Język
en
Treść
The paper presents the results from the study concerning the application of airborne laser scanning (ALS) data and derived raster products like the digital surface model (DSM) and the digital terrain model (DTM) for the assessment of the degree of change of the land use based on the forest succession example. Simultaneously, an automated method of ALS data processing was developed based on the normalized (nDSM) and cadastral GIS information. Besides delivering precise information on forest succession, ALS technology is an excellent tool for time-changes spatial analyses. Usage of the ALS data can support the image interpretation process decreasing the subjectivity of the operator. In parallel, a manual vectorization and object classification (object-based image analysis—OBIA) were performed; both based on aerial orthophoto and ALS data. By using integrated ALS point clouds and digital aerial images, one can obtain fast OBIA processing and the determination of areas where the land cover has changed. The Milicz District (central west part of Poland) was chosen as the test site where ALS was to be performed in 2007, together with the digital aerial photos (Vexcel camera; pixel 0.15 m; CIR). The aerial photos were then processed to a CIR orthophoto. The area of study consisted of 68 private parcels (some of them were abandoned; 68.57 ha; scanned cadastral maps from the local survey office; land use information) in the direct neighbourhood of the State Forest, on which a forest succession could often be observed. The operator vectorized forest (trees and shrubs) succession areas on the 2D CIR orthophoto. They were then compared with the results from the OBIA and GIS analysis, based on the normalized digital surface model. The results showed that areas with high vegetation cover were three times larger than the official land cover database (cadastral maps).
Inne
System-identifier
URb8f2fb9d31634d4aa2dfed1cfaf63ec1