DOI: 10.1016/j.jag.2017.07.015
Scopus记录号: 2-s2.0-85032489222
论文题名: Accuracy of tree diameter estimation from terrestrial laser scanning by circle-fitting methods
作者: Koreň M ; , Mokroš M ; , Bucha T
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 63 起始页码: 122
结束页码: 128
语种: 英语
英文关键词: Diameter at breast height
; Point cloud
; Terrestrial laser scanning
Scopus关键词: accuracy assessment
; algorithm
; data processing
; height determination
; laser method
; Monte Carlo analysis
; tree
; Fagus
; Fagus sylvatica
英文摘要: This study compares the accuracies of diameter at breast height (DBH) estimations by three initial (minimum bounding box, centroid, and maximum distance) and two refining (Monte Carlo and optimal circle) circle-fitting methods The circle-fitting algorithms were evaluated in multi-scan mode and a simulated single-scan mode on 157 European beech trees (Fagus sylvatica L.). DBH measured by a calliper was used as reference data. Most of the studied circle-fitting algorithms significantly underestimated the mean DBH in both scanning modes. Only the Monte Carlo method in the single-scan mode significantly overestimated the mean DBH. The centroid method proved to be the least suitable and showed significantly different results from the other circle-fitting methods in both scanning modes. In multi-scan mode, the accuracy of the minimum bounding box method was not significantly different from the accuracies of the refining methods The accuracy of the maximum distance method was significantly different from the accuracies of the refining methods in both scanning modes. The accuracy of the Monte Carlo method was significantly different from the accuracy of the optimal circle method in only single-scan mode. The optimal circle method proved to be the most accurate circle-fitting method for DBH estimation from point clouds in both scanning modes. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80007
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, Zvolen, Slovakia; National Forest Centre – Forest Research Institute, T. G. Masaryka 22, Zvolen, Slovakia
Recommended Citation:
Koreň M,, Mokroš M,, Bucha T. Accuracy of tree diameter estimation from terrestrial laser scanning by circle-fitting methods[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,63