Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improvement of PolSAR Decomposition Scattering Powers Using a Relative
  Decorrelation Measure   In this letter, a methodology is proposed to improve the scattering powers
obtained from model-based decomposition using Polarimetric Synthetic Aperture
Radar (PolSAR) data. The novelty of this approach lies in utilizing the
intrinsic information in the off-diagonal elements of the 3$\times$3 coherency
matrix $\mathbf{T}$ represented in the form of complex correlation
coefficients. Two complex correlation coefficients are computed between
co-polarization and cross-polarization components of the Pauli scattering
vector. The difference between modulus of complex correlation coefficients
corresponding to $\mathbf{T}^{\mathrm{opt}}$ (i.e. the degree of polarization
(DOP) optimized coherency matrix), and $\mathbf{T}$ (original) matrices is
obtained. Then a suitable scaling is performed using fractions \emph{i.e.,}
$(T_{ii}^{\mathrm{opt}}/\sum\limits_{i=1}^{3}T_{ii}^{\mathrm{opt}})$ obtained
from the diagonal elements of the $\mathbf{T}^{\mathrm{opt}}$ matrix.
Thereafter, these new quantities are used in modifying the Yamaguchi
4-component scattering powers obtained from $\mathbf{T}^{\mathrm{opt}}$. To
corroborate the fact that these quantities have physical relevance, a
quantitative analysis of these for the L-band AIRSAR San Francisco and the
L-band Kyoto images is illustrated. Finally, the scattering powers obtained
from the proposed methodology are compared with the corresponding powers
obtained from the Yamaguchi \emph{et. al.,} 4-component (Y4O) decomposition and
the Yamaguchi \emph{et. al.,} 4-component Rotated (Y4R) decomposition for the
same data sets. The proportion of negative power pixels is also computed. The
results show an improvement on all these attributes by using the proposed
methodology.

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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex