Title :
High accurate geometric correction for NORA AVHRR data considering elevation effect
Author :
Van, An Ngoc ; Aoki, Yoshimitsu
Author_Institution :
Shibaura Inst. of Technol., Tokyo
Abstract :
This paper describes a high accurate geometric correction method for NOAA AVHRR data considering elevation effect. NOAA data in map coordinate system is divided into rough and flat blocks to identify the variation of elevation. GCP template matching and affine coefficients are then used to correct residual errors in image coordinate system. In order to correct more residual errors, appropriate flat blocks are combined with GCP templates. Finally, corrected data is transformed into map coordinate system by bilinear interpolation. Because the sizes of rough blocks are smaller, the errors of bilinear interpolation are reduced.
Keywords :
geophysical signal processing; radiometers; remote sensing; GCP template matching; NOAA AVHRR data; affine coefficients; bilinear interpolation; elevation effect; high accurate geometric correction; image coordinate system; map coordinate system; Computer errors; Control systems; Earth; Error correction; Information science; Interpolation; Paper technology; Pixel; Radiometry; Satellite broadcasting; NOAA AVHRR; elevation effect; geometric correction; template matching;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4422813
