2024-03-28T17:38:38Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00001798
2022-12-15T04:27:24Z
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Classification of Terrain by Implementing the Correlation Coefficient in the Circular Polarization Basis Using X-Band POLSAR Data
Yamaguchi, Yoshio
19
Yamamoto, Yukari
5640
Yamada, Hiroyoshi
50
Yang, Jian
5642
Boerner, Wolfgang-Martin
5643
radar polarimetry
polarimetric synthetic aperture radar(POLSAR)
correlation coefficient
circular polarization basis
scattering power
Classification of terrain is one of the most important applications of Polarimetric Synthetic Aperture Radar (POLSAR) image analysis. This paper presents a simple method to classify terrain by the use of the correlation coefficients in the circular polarization basis together with the total power of the scattering matrix in the X-band. The reflection symmetry condition that the co-polarized and the cross-polarized correlations are close to zero for natural distributed scatterers is utilized to extract characteristic parameters of small forests or cluster of trees, and oriented urban building blocks with respect to the direction of the radar illumination. Both of these kinds of scatterers are difficult to identify in high resolution POLSAR images of complex urban areas. The indices employed here are the correlation coefficient, a modified coefficient normalized by the reflection symmetric conditional case, and the total power. It is shown that forest areas and oriented building blocks are easily detected and identified. The terrain classification yielded by these combinations is very accurate as confirmed by photographic ground truth images.
journal article
The Institute of Electronics, Information and Communication Engineers
2008-01
application/pdf
IEICE transactions on communications
1
E91-B
297
301
AA10826261
0916-8516
https://niigata-u.repo.nii.ac.jp/record/1798/files/E91_B_1_297-301.pdf
eng
http://doi.org/10.1093/ietcom/e91-b.1.297
http://www.ieice.org/jpn/trans_online/
copyright(C)2008 IEICE