Assessment of forest attributes and single-tree segmentation by means of laser scanning

Michaela Ziegler; Harald Konrad; Johannes Hofrichter; Andreas Wimmer; Georg S. Ruppert; Mathias Schardt; Juha M. Hyyppae

doi:10.1117/12.397780

5 September 2000 Assessment of forest attributes and single-tree segmentation by means of laser scanning

Michaela Ziegler, Harald Konrad, Johannes Hofrichter, Andreas Wimmer, Georg S. Ruppert, Mathias Schardt, Juha M. Hyyppae

Author Affiliations +

Proceedings Volume 4035, Laser Radar Technology and Applications V; (2000) https://doi.org/10.1117/12.397780
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

In this study laser scanner canopy height metrics data from the laser scanner Toposys-1 were investigated to derive forest attributes such as timber volume, tree height, and crown area coverage for the use in forest inventories. Investigations were based both on single tree information from crown segmentation and stand-wise assessments. while the statistical stand-wise approach only utilizes mean values for stand areas, the single tree classification approach makes use of the full potential of the high resolution laser scanner data. Forest inventory parameters were classified on the base of single trees or small groups of trees using digital image processing methods such as segmentation and data filtering. Stand-wise forest inventory data and single tree information were regressed against laser-derived features. Accuracy for additional stand parameters depends on crown closure and tree species. The obtained accuracy for tree heights from the approaches described is within the accuracy of conventional field based measurements. Further, it was investigated in how far laser scanner data is appropriate to assess timber volume. The described approaches can be used operationally for stand- wise forest inventories. Especially the single tree approach can be used instead of time- and cost-intensive field work in cases when full enumeration is required.

Citation Download Citation

Michaela Ziegler, Harald Konrad, Johannes Hofrichter, Andreas Wimmer, Georg S. Ruppert, Mathias Schardt, and Juha M. Hyyppae "Assessment of forest attributes and single-tree segmentation by means of laser scanning", Proc. SPIE 4035, Laser Radar Technology and Applications V, (5 September 2000); https://doi.org/10.1117/12.397780

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available