DocumentCode :
3442435
Title :
A polynomial-based ortho-rectification for SAR imagery
Author :
Kim, Man-jo ; Hwang, Chi-jung
Author_Institution :
Agency for Defense Development, Daejeon, Republic of Korea
fYear :
2012
fDate :
16-18 Oct. 2012
Firstpage :
997
Lastpage :
1000
Abstract :
This paper describes a geocoding procedure that relies on a polynomial model derived from the imaging geometry without loss of accuracy. By using polynomial model, one can effectively eliminate the iterative process to find an image pixel corresponding to each output grid point. With the imaging geometry and ephemeris data, a geo-location polynomial can be constructed from grid points that are produced by solving three equations simultaneously. And, in order to correct the local distortions induced by the geometry and terrain height, a distortion model has been incorporated in the procedure, which is a function of incidence angle and height at each pixel position. With this function, it is straightforward to calculate the pixel displacement due to distortions and then pixels are assigned to the output grid by re-sampling the displaced pixels.
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing (CISP), 2012 5th International Congress on
Conference_Location :
Chongqing, Sichuan, China
Print_ISBN :
978-1-4673-0965-3
Type :
conf
DOI :
10.1109/CISP.2012.6469659
Filename :
6469659
Link To Document :
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