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Individual tree species identificati...

University of Washington.

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Individual tree species identification using LIDAR-derived crown structures and intensity data.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Individual tree species identification using LIDAR-derived crown structures and intensity data./
Author:	Kim, Sooyoung.
Description:	121 p.
Notes:	Adviser: Gerard F. Schreuder.
Contained By:	Dissertation Abstracts International69-02B.
Subject:	Agriculture, Forestry and Wildlife. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3303379
ISBN:	9780549497899

Individual tree species identification using LIDAR-derived crown structures and intensity data.
Kim, Sooyoung.

Individual tree species identification using LIDAR-derived crown structures and intensity data. - 121 p.

Adviser: Gerard F. Schreuder.

Thesis (Ph.D.)--University of Washington, 2008.

The research presented in this dissertation provides a significant contribution to the understanding of how various tree species can be identified through the structural and spectral characteristics derived from LIDAR data.

ISBN: 9780549497899Subjects--Topical Terms:

783690
Agriculture, Forestry and Wildlife.

Individual tree species identification using LIDAR-derived crown structures and intensity data.
LDR:03062nam 2200313 a 45 001 856169
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020 $a 9780549497899
035 $a (UMI)AAI3303379
035 $a AAI3303379
040 $a UMI $c UMI
100 1 $a Kim, Sooyoung. $3 1022936
245 1 0 $a Individual tree species identification using LIDAR-derived crown structures and intensity data.
300 $a 121 p.
500 $a Adviser: Gerard F. Schreuder.
500 $a Source: Dissertation Abstracts International, Volume: 69-02, Section: B, page: 0754.
502 $a Thesis (Ph.D.)--University of Washington, 2008.
520 $a The research presented in this dissertation provides a significant contribution to the understanding of how various tree species can be identified through the structural and spectral characteristics derived from LIDAR data.
520 $a Tree species identification is important for a variety of natural resource management and monitoring activities including riparian buffer characterization, wildfire risk assessment, biodiversity monitoring, and wildlife habitat improvement. Coordinate data from airborne laser scanners can be used to detect individual trees and characterize forest biophysical attributes. Metrics computed from LIDAR point data describe tree size and crown shape characteristics. The intensity data recorded for each laser point is related to the spectral reflectance of the target material and thus may be useful for differentiating materials and ultimately tree species. The aim of this study is to test if LIDAR intensity data and crown structure metrics can be used to differentiate tree species. Leaf-on and leaf-off LIDAR were obtained in the Washington Park Arboretum. Field work was conducted to measure tree locations, heights, crown base heights, and crown diameters for eight broadleaved species and seven conifers. LIDAR points from individual trees were identified using the field-measured tree location. Points from adjacent trees were excluded. We found that intensity values for different tree species varied depending on foliage characteristics, the presence or absence of foliage, and the position of the LIDAR return within the tree crown. In terms of the intensity analysis, the classification accuracy for broadleaved and coniferous species was better using leaf-off data than using leaf-on data while in terms of the structure analysis, the accuracy was better using leaf-on data than using leaf-off data. The stepwise cluster analysis was conducted to find similar groups of species at consecutive steps using k-medoid algorithm. When using both LIDAR datasets showed the most reasonable clustering result compared with the result using either one of the datasets.
590 $a School code: 0250.
650 4 $a Agriculture, Forestry and Wildlife. $3 783690
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Engineering, Environmental. $3 783782
650 4 $a Remote Sensing. $3 1018559
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710 2 0 $a University of Washington. $3 545923
773 0 $t Dissertation Abstracts International $g 69-02B.
790 $a 0250
790 1 0 $a Schreuder, Gerard F., $e advisor
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3303379