The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
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Figure-2(b) Overlay of features extracted in 2D mode (Red: 
Cartosat-1 & Blue: Cartosat-2) over Cartosat-2 ortho-image 
Figure-3(a) Comparison of features extracted in 2D mode from 
Cartosat-2 and 3D mode from Cartosat-1 (Magenta: Cartosat-1 
& Blue: Cartosat-2) 
Figure-3 (b) Overlay of features extracted in 2D mode from 
Cartosat-2 and 3D mode from Cartosat-1 (Magenta: Cartosat-1 
& Blue: Cartosat-2) over Cartosat-2 Ortho-image 
Figure-4 Overview of a portion of the DEM generated 
Figure-5 Overview of a portion of the final map generated 
REFERENCES 
1. Akiyama, M., "Topographic Mapping Method Using SPOT 
Imagery", International Archives of Photogrammetry and 
Remote Sensing, 29, B4 pp. 336-341 (1992) 
2. Albertz, J. and R. Tauch, "Mapping from Space — 
Cartographic Applications of Satellite Image Data", 
GeoJoumal 32.1, pp. 29-37 (1994). 
3. Wang, J., K. Di, and R. Li, 2005. Evaluation and 
improvement of geopositioning accuracy of IKONOS stereo 
imagery. ASCE Journal of Surveying Engineering, 131(2), 
pp. 35-42. 
ACKNOWLEDGEMENT 
The authors are grateful to Dr. R.R.Navalgund, Director, Space 
Applications Centre, Ahmedabad for encouraging and allowing 
us to take up this work. Also, authors express their gratitude to 
all the project team members of Cartosat-1 and Cartosat-2 and 
the other data products team members for supporting this 
activity. Authors also wish to thank the internal reviewers for 
their critical comments.