DocumentCode :
2450424
Title :
Accuracy improvement method of forest height estimation for PolInSARImage
Author :
Minh, Nghia Pham ; Zou, Bin ; Lu, Da
Author_Institution :
Harbin Institude of Technol., Harbin, China
fYear :
2012
fDate :
16-18 July 2012
Firstpage :
594
Lastpage :
598
Abstract :
Polarimetric SAR interferometry (Pol-InSAR) is a radar remote sensing technique, that allows to extract forest heights by means of model-based inversion. Recently, there have been plenty of research on the retrieval of vegetation parameters by single frequency single baseline PolInSAR such as the ESPRIT method, three-stage inversion. However, these methods tend to underestimate the forest height due to attenutation of the electromagnetic waves in the ground medium. This paper proposes a method to improve the accuracy of forest height estimation. This method is based on a fusion of hybrid method extracting forest parameters and the coherence amplitude method. Finally, the simulated PolInSAR data are used to validate the proposed method.
Keywords :
feature extraction; forestry; image fusion; radar imaging; radar interferometry; radar polarimetry; remote sensing by radar; synthetic aperture radar; vegetation; ESPRIT method; coherence amplitude method; electromagnetic wave attenuation; forest height estimation; forest height extraction; ground medium; hybrid method extracting forest parameter fusion; model-based inversion; polarimetric sar interferometry; radar remote sensing technique; single frequency single baseline pol-InSAR image; three-stage inversion; vegetation parameter retrieval; Accuracy; Coherence; Estimation; Interferometry; Least squares approximation; Synthetic aperture radar; ESPRIT; PolInSAR; coherence amplitude method; forest height estimation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Audio, Language and Image Processing (ICALIP), 2012 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0173-2
Type :
conf
DOI :
10.1109/ICALIP.2012.6376686
Filename :
6376686
Link To Document :
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