Automatic segmentation of multiple VHF-band SAR images to improve stem volume retrieval

Author

Folkesson, Klas ; Smith, Gary ; Ulander, Lars M H

Author_Institution

Dept. of Radio & Space Sci., Chalmers Univ. of Technol., Goteborg

Volume

1

fYear

2004

fDate

20-24 Sept. 2004

Firstpage

519

Lastpage

522

Abstract

Ground slope effects have been identified as a limiting factor for stem volume retrieval from VHF-band SAR images since the ground-trunk dihedral scattering, which dominates the measured signal, is highly affected by surface relief and slope. To mitigate this problem coregistered SAR images from different flight headings have been acquired. These images are segmented to find regions with homogenous backscatter amplitude that are used with additional topography data to correct for the ground slope

Keywords

geophysical signal processing; image processing; radar cross-sections; remote sensing by radar; synthetic aperture radar; terrain mapping; topography (Earth); automatic segmentation; coregistered SAR images; flight heading; ground slope effect; ground-trunk dihedral scattering; homogenous backscatter amplitude; multiple VHF-band SAR images; stem volume retrieval; surface relief/slope; synthetic aperture radar; topography data; Backscatter; Image retrieval; Image segmentation; Laser radar; Optical scattering; Radar scattering; Remote sensing; Space technology; Surfaces; Volume measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1369078

Filename

1369078