CARTOSAT - I: Evaluating Mapping Capabilities
要旨CARTOSAT-1, the latest of the Indian Remote Sensing series of satellites, being a dedicated mission for Cartographic and Mapping Applications, allows for building topographic databases , high resolution DEM’s and orthoproducts. An Orthokit scene over Jaipur (GSD 2.5 m), India was evaluated. This paper provides an initial geometric accuracy assessment of CARTOSAT-1 stereo, both with and without ground control. Observations related to image quality (radiometric and geometric), RPC quality, accuracy evaluation of DEM and orthoproduct are reported. It was found that the uncontrolled block exhibited errors of the orders of 300 m. With control points and tie points the error was reduced to within pixel. Good results were obtained after image matching and Orthorectification.