Tree crown delineation from high resolution airborne LiDAR based on densities of high points

Title

Tree crown delineation from high resolution airborne LiDAR based on densities of high points

 Author

Rahman, M.Z.A.
Gorte, B.G.H.

Faculty

Aerospace Engineering

 Date

2009-01-07

 Abstract

Tree detection and tree crown delineation from Airborne LiDAR has been focusing mostly on utilizing the canopy height model (CHM). This paper presents a method for individual tree crown delineation based on densities of high points (DHP) from the high resolution Airborne LiDAR. The DHP method relies on the fact that the density of received laser pulses above a certain height is high at the centre of a tree crown and decreases towards the edge of the crown. In this study, the performance of this method is compared to the CHM approach. The results demonstrate that tree delineation based on DHP is at least comparable to the CHM approach. The DHP based approach performs better compared to the CHM especially for trees with almost flat-top crown shape. However, post-processing on tree crown segments is still necessary to improve the overall accuracy of tree detection and tree crown delineation.

 To reference this document use:

http://resolver.tudelft.nl/uuid:46c78763-255a-426f-a3d6-76467d0e8862

 Publisher

ISPRS

 ISSN

16821750

 Source

Proceedings ISPRS Workshop Laserscanning 2009, September 1-2, France, IAPRS, XXXVIII (3/W8), 2009

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

B. Gorte, A. Rahman
Files
PDF Zul_Tree_crown_Paris_20091.pdf 462.62 KB
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