Results 81 to 90 of about 206 (121)

The polarimetric ratio filter applied to polinsar images

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
We are proposing recursive filter for the filtering of Single Look Complex PolInSAR data. This recursive filter allows the iterative refinement of a coarse multilook estimate by reintroducing details that have been oversmoothed. We investigate if wether or not information about the image structure (i.e.
Samuel Foucher, Carlos López-Martínez, François Charbonneau   +2 more
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On Polinsar System Requirements for Forest Height Mapping

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Polarimetric interferometric SAR (PolinSAR) data are contaminated by cross-talk and channel imbalance. To ensure the successful estimation of forest heights from forthcoming PolinSAR campaigns, a critical study on the polarimetric system requirements of PolinSAR for forest height mapping must be carried out.
Xiao Wang 0020, Feng Xu 0001, Ya-Qiu Jin
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Optimised power changes detector for PolInSAR applications

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The use of polarimetric and interferometric SAR (Pol-InSAR) has been demonstrated to bring significant advantages for several remote sensing applications. Sometimes, the hypothesis that the scattering mechanisms (SM) do not suffer large changes in the two acquisitions is performed (ESM).
Armando Marino, Irena Hajnsek, Matteo Nannini   +2 more
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An analysis of coherence optimization methods in PolInSAR

2007 1st Asian and Pacific Conference on Synthetic Aperture Radar, 2007
The combination of SAR polarimetry and SAR interferometry introduced many new research and application fields. The major parameter which is computed from observable of polarimetric interferometric SAR (PolInSAR) is the complex coherence. But coherences are easily influenced by many factors, like temporal or spatial baseline, or noise. In this paper, we
null Zhang Binghuang, null Chen Bing
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Full maximum likelihood inversion of polinsar scattering models

IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
We expand upon the maximum likelihood inversion approach presented in Flynn, Tabb, and Carande ["Direct estimation of vegetation parameters from covariance data in polarimetric SAR interferometry", IGARSS 2002], and show how to optimally combine the polarimetric channels to form a bare earth estimate for the case of single layer ground scattering.
Mark Tabb, Thomas Flynn 0002, Richard Carande   +2 more
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POLInSAR: From SIR-C to Tandem-X

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
In this paper we provide a review of developments in the field of polarimetric SAR interferometry or POLInSAR, beginning with its origins in data from the SIR-C mission in 1994 and culminating in its latest application to Tandem-X, a space-borne single pass X-Band interferometer launched in 2010.
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Modeling and Interpretation of the Multitemporal and Multibaseline Polinsar Coherence

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
This paper focuses on the physical understanding of the polarimetric interferometric SAR (PolInSAR) coherence, and on the accurate utilization of this coherence for vegetation parameter inversion. A polarimetric interferometric vegetation model presented here provides the possibility to estimate parameters related to ground topography, vegetation, and ...
Maxim Neumann, Laurent Ferro-Famil, Andreas Reigber   +2 more
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A coherent EM scattering model for dual baseline POLInSAR

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004
In this paper we develop a new algorithm for improved tree height retrieval based on dual baseline polarimetric SAR interferometry. We test the algorithm using coherent simulations of forest canopy scattering.
Shane R. Cloude, Mark L. Williams 0001
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Model based PolSAR and PolInSAR speckle noise reduction

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004
Speckle noise is known as one of the main problems in Synthetic Aperture Radar (SAR) technology. For multidi- mensional SAR data, a novel speckle noise model has been proposed. This paper presents the use of this model to reduce the effects of speckle noise.
Carlos López-Martínez, Xavier Fàbregas   +1 more
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Model-based polarimetric decomposition using PolInSAR coherence

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
A volume scattering model utilizing polarimetric SAR interferometry (PolInSAR) coherence is proposed. The new model is more adaptive and better fit for both forest and skew-oriented built-up areas. Thereby, a new model-based polarimetric decomposition scheme is developed. The advantage of the proposed method is demonstrated by E-SAR PolInSAR data.
Si-Wei Chen 0001, Motoyuki Sato
openaire   +1 more source