講演抄録/キーワード |
講演名 |
2007-05-18 13:50
Classification of Terrain Using the Correlation Coefficient in the Circular Polarization Basis for the X-band Pi-SAR image. ○Yoshio Yamaguchi・Yukari Yamamoto・Hiroyoshi Yamada(Niigata Univ.) AP2007-26 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
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 in dependence of the direction of the radar illumination. Both of these kinds of scatterers are difficult to be identified 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 so easily detected and identified. Then terrain is classified by these combinations showing the result is corresponding well to the photographic ground truth images. |
キーワード |
(和) |
/ / / / / / / |
(英) |
radar polarimetry / POLSAR / correlation coefficient / circular polarization basis / scattering power / / / |
文献情報 |
信学技報, vol. 107, no. 35, AP2007-26, pp. 75-80, 2007年5月. |
資料番号 |
AP2007-26 |
発行日 |
2007-05-10 (AP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
AP2007-26 |