SAR-to-LiDAR mapping for tree volume prediction in the Kruger National Park

H. C. Myburgh, J. C. Olivier, R. Mathieu, K. Wessels, B. Leblon, G. Asner, J. Buckley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper a neural network is used to perform a mapping between Synthetic Aperture Radar (SAR) backscatter information and LiDAR measurements, and the performance of the neural network model is evaluated against that of a multiple linear regression model. Our aim is to find a relationship between SAR backscatter information and the LiDAR tree volume measurements on a number of land uses in South Africa's Kruger National Park, using a linear as well as a non-linear model. We also seek to find the optimal grid cell size as well as the best combination of SAR polarisation- and decomposition parameters. Our findings suggest that there exists a linear or at least a near-linear relationship between the SAR backscatter information and the LiDAR measurements in South African savannas and that the addition of polarisation- and decomposition parameters to the input of the models aid in improving the Root Mean Squared Error (RMSE) performance.

Original languageEnglish (US)
Title of host publication2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings
Pages1934-1937
Number of pages4
DOIs
StatePublished - Nov 16 2011
Externally publishedYes
Event2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Vancouver, BC, Canada
Duration: Jul 24 2011Jul 29 2011

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011
CountryCanada
CityVancouver, BC
Period7/24/117/29/11

Keywords

  • LiDAR
  • Linear regression
  • Neural network
  • RMSE
  • Synthetic Aperture Radar
  • mapping

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    Myburgh, H. C., Olivier, J. C., Mathieu, R., Wessels, K., Leblon, B., Asner, G., & Buckley, J. (2011). SAR-to-LiDAR mapping for tree volume prediction in the Kruger National Park. In 2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings (pp. 1934-1937). [6049504] (International Geoscience and Remote Sensing Symposium (IGARSS)). https://doi.org/10.1109/IGARSS.2011.6049504