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Abstract
Semi-Automated Extraction of Trees and Forest Structure from High-Resolution Imagery
Track: Remote Sensing Imagery
Author(s): Brian Graff, Joni Jarrett
Many Army tactical decision aids, such as crosscountry mobility models, require detailed vegetation information over interceding terrain. Vegetation information includes tree density, canopy cover, and minimum distance between trees. Compiling this information manually from imagery is a time-consuming process. TEC developed prototype software (TreeSAP) to utilize high-resolution (1-meter) multispectral imagery to extract individual trees and to calculate ancillary tree attributes in a semiautomated manner. TreeSAP was programmed in ArcInfo AML and Microsoft Visual Basic. This paper presents the use of TreeSAP over multiple test sites; TreeSAP results are compared to field collected and photointerpreted data to assess TreeSAP's accuracy.
Brian Graff
U.S. Army Corps of Engineers
ERDC - Topographic Engineering Center
7701 Telegraph Road
TR-G
Alexandria , VA 22315-3864
USA
Phone: (703)428-6701
Fax: (703) 428-6425
E-mail: bgraff@tec.army.mil
Joni Jarrett
U.S. Army Corps of Engineers
ERDC - Topographic Engineering Center
7701 Telegraph Road
TR-G
Alexandria 22315-3864
USA
Phone: 703-428-6802
Fax: (703) 428-6425
E-mail: jarrett@tec.army.mil