Detection of windthrown trees using airborne laser scanning.
International Journal of Applied Earth Observation and Geoinformation(2014)
摘要
•Difference between two elevation models reveals windthrown trees.•Template matching automatically locates windthrown trees in the difference image.•38% detection rate at individual tree level evaluated on 651 field measured trees.•Aggregated to 40m grid cells, at least one tree was found in 77% of the cells.•Higher detection rate for larger trees and pine.
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关键词
Storm damage,Downed logs,Template matching,Active surface,ALS,LiDAR
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