Use of airborne LiDAR and aerial photography in the estimation of individual tree heights in forestry

被引：154

作者：

Suárez, JC

Ontiveros, C

Smith, S

Snape, S

机构：

[1] No Res Stn, Silviculture N Forest Res, Roslin EH26 9SY, Midlothian, Scotland

[2] No Res Stn, Woodland Surveys Forest Res, Roslin EH26 9SY, Midlothian, Scotland

[3] Forest Enterprise, Operat Support Unit, Edinburgh EH12 7AT, Midlothian, Scotland

来源：

COMPUTERS & GEOSCIENCES | 2005年 / 31卷 / 02期

关键词：

remote sensing; forestry; LiDAR; aerial photography; eCognition; data fusion;

D O I：

10.1016/j.cageo.2004.09.015

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper describes the use of aerial photography and airborne LiDAR to estimate individual tree heights in forest stands. The advantages and disadvantages in the use of LiDAR systems are revised and a data fusion analysis with digital aerial photography is proposed. An example of the use of these techniques in a forested area in Scotland is presented. An algorithm has been developed to extract a high-resolution digital terrain model of the bare ground. This provided a tree canopy model as the difference between the laser first pulse and the model of the underlying terrain. Information about individual trees was obtained by image segmentation and classification. This analysis provided a good method of estimating individual tree canopies and heights. Crown Copyright (C) 2004 Published by Elsevier Ltd. All rights reserved.

引用

页码：253 / 262

页数：10

共 24 条

[1] Airborne laser scanning - present status and future expectations [J].