Structure Tensor Estimation: Introducing Monomial Quadrature Filter Sets

2012 ◽  
pp. 3-28 ◽  
Author(s):  
Hans Knutsson ◽  
Carl-Fredrik Westin ◽  
Mats Andersson
Keyword(s):  
Structure Tensor ◽  
Quadrature Filter

Combined LMMSE and Structure Tensor Diffusion Filter for Bias Removal in MRI Data

2017 ◽  
Vol 4 (1) ◽  
pp. 11
Author(s):  
C. Anjanappa ◽  
Sheshadri H.S ◽  
◽  
Keyword(s):  
Structure Tensor ◽  
Diffusion Filter ◽  
Bias Removal

scholarly journals A generalised structure tensor model for the mixed invariant I8

2018 ◽  
Vol 107 ◽  
pp. 137-148 ◽  
Author(s):  
Andrey V. Melnik ◽  
Xiaoyu Luo ◽  
Ray W. Ogden
Keyword(s):  
Structure Tensor ◽  
Tensor Model

scholarly journals Estimation of Non-Cartesian Local Structure Tensor Fields

2007 ◽  
pp. 948-957 ◽  
Author(s):  
Björn Svensson ◽  
Anders Brun ◽  
Mats Andersson ◽  
Hans Knutsson
Keyword(s):  
Local Structure ◽  
Structure Tensor ◽  
Tensor Fields

scholarly journals Despeckling PolSAR Images with a Structure Tensor Filter

2020 ◽  
Author(s):  
D Santana-Cedres ◽  
L Gomez ◽  
L Alvarez ◽  
Alejandro Frery
Keyword(s):  
Monte Carlo ◽  
Anisotropic Diffusion ◽  
State Of The Art ◽  
Monte Carlo Analysis ◽  
Structure Tensor ◽  
Synthetic Aperture ◽  
Experimental Setup ◽  
Polarimetric Synthetic Aperture Radar ◽  
Wishart Matrices ◽  
Dominant Direction

© 2004-2012 IEEE. In this letter, we propose a new despeckling filter for fully polarimetric synthetic aperture radar (PolSAR) images defined by 3× 3 complex Wishart distributions. We first generalize the well-known structure tensor to deal with PolSAR data which allows to efficiently measure the dominant direction and contrast of edges. The generalization includes stochastic distances defined in the space of the Wishart matrices. Then, we embed the formulation into an anisotropic diffusion-like schema to build a filter able to reduce speckle and preserve edges. We evaluate its performance through an innovative experimental setup that also includes Monte Carlo analysis. We compare the results with a state-of-the-art polarimetric filter.

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