Sökning: onr:"swepub:oai:research.chalmers.se:de997a3a-4e38-47d4-8de6-25d9a4c6aee8" >
Tree Crown Mapping ...
Tree Crown Mapping in Managed Woodlands (Parklands) of Semi-Arid West Africa Using WorldView-2 Imagery and Geographic Object Based Image Analysis
-
- Karlson, Martin (författare)
- Linköpings universitet,Centrum för klimatpolitisk forskning,Tema Miljöförändring,Filosofiska fakulteten
-
- Reese, Heather (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig resurshushållning,Department of Forest Resource Management,Section of Forest Remote Sensing, Department of Forest Resource Management, Swedish University of Agricultural Sciences, Umeå, Sweden
-
- Ostwald, Madelene, 1966 (författare)
- Linköpings universitet,Gothenburg University,Göteborgs universitet,Centrum för globalisering och utveckling (GCGD),Göteborgs miljövetenskapliga centrum, GMV,Gothenburg Centre for Globalization and Development (GCGD),Centre for Environment and Sustainability,Tema Miljöförändring,Centrum för klimatpolitisk forskning,Filosofiska fakulteten,Univ Gothenburg, GMV, Ctr Environm & Sustainabil, S-40530 Gothenburg, Sweden Chalmers, S-40530 Gothenburg, Sweden
-
(creator_code:org_t)
-
- 2014-11-28
- 2014
- Engelska.
-
Ingår i: Sensors. - Basel : MDPI AG. - 1424-8220 .- 1424-3210. ; 14:12, s. 22643-22669
- Relaterad länk:
-
http://publications.... (primary) (free)
-
visa fler...
-
https://www.mdpi.com...
-
https://pub.epsilon.... (primary) (Raw object) (free)
-
https://gup.ub.gu.se... (primary) (free)
-
https://doi.org/10.3...
-
https://liu.diva-por... (primary) (Raw object)
-
https://doi.org/10.3...
-
https://research.cha...
-
https://res.slu.se/i...
-
https://gup.ub.gu.se...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Detailed information on tree cover structure is critical for research and monitoring programs targeting African woodlands, including agroforestry parklands. High spatial resolution satellite imagery represents a potentially effective alternative to field-based surveys, but requires the development of accurate methods to automate information extraction. This study presents a method for tree crown mapping based on Geographic Object Based Image Analysis (GEOBIA) that use spectral and geometric information to detect and delineate individual tree crowns and crown clusters. The method was implemented on a WorldView-2 image acquired over the parklands of Saponé, Burkina Faso, and rigorously evaluated against field reference data. The overall detection rate was 85.4% for individual tree crowns and crown clusters, with lower accuracies in areas with high tree density and dense understory vegetation. The overall delineation error (expressed as the difference between area of delineated object and crown area measured in the field) was 45.6% for individual tree crowns and 61.5% for crown clusters. Delineation accuracies were higher for medium (35–100 m2) and large (?100 m2) trees compared to small (
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- tree crown mapping
- tree crown delineation
- agroforestry
- remote sensing
- parkland
- high spatial resolution
- Burkina Faso
- woodland
- geographic object based image analysis
- WorldView-2
- remote sensing; high spatial resolution; WorldView-2; tree crown mapping; tree crown delineation; geographic object based image analysis; woodland; agroforestry; parkland; Burkina Faso
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
-
Sensors
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas