Indian remote sensing satellite:geocoding and DEM extraction

摘要

The present technology does not permit the 7-#um#m CCD push broom optical sensor to image a region of 70 km.therefore the IRS -IC satellite use three separate 4096 CCD push broom opticl sensor resulting in htree array images.Two different methods to ortho-rectify and mosaic the three IRS-1 array images are presented.Results using the CCRS modelling show an accuracy of about one pixel.Future research at CCRS to integrate the parameters of the three sensors in to a single geometric modelling should give better results (less than one pixel) with also less GCPs.