- Tytuł:
-
Określenie zagęszczenia drzewostanów z wykorzystaniem danych z lotniczego skanowania laserowego
Determination of stand density using data from airborne laser scanning - Autorzy:
- Stereńczak, K.
- Powiązania:
- https://bibliotekanauki.pl/articles/994409.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
drzewostany gospodarcze
drzewostany sosnowe
drzewostany mieszane
inwentaryzacja
zageszczenie drzew
lotniczy skaning laserowy
wysokosciowy model korony
segementacja drzewostanu
forestry
segmentation
chm
accuracy - Opis:
- Airborne laser scanning (ALS) technology allows collecting data describing top forest layer in a very accurate way. This provides a possibility to generate crown height models (CHM) with resolution in which single tree crowns can be detected. In presented study highly automatic algorithm for single tree detection is presented. FALCON II ALS acquired data in Forest Experimental Station in Rogów (central Poland). Data used for algorithm accuracy evaluation were acquired by measuring sample plots on VSD photogrammetric station. CHM with the resolution of 0.5 m has been used in the presented research. Algorithm, in automatic or semi−automatic way, defines single crowns. Each of the end segments was additionally processed for correctly defined size and area of the crown projection. Received accuracy of correctly detected trees was 69% for all samples (71% for pine stands and 61% mixed stands) in automatic method and 74% (78% and 65% respectively) in semi−automatic method.
- Źródło:
-
Sylwan; 2013, 157, 08; 607-617
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł