Abstract
In the current study, we have generated a Digital Elevation Model (DEM) using high spatial resolution stereo images (2.5 m spatial resolution) of the Cartosat-1 satellite and examined the terrain's quantitative topographic features. Firstly, the DEM is generated through topographic features such as elevation, slope gradient, aspect, hill shade, and contour map. We performed a comparative evaluation of the accuracy of topographic features the DEM generated through stereo images and freely accessible Cartosat-1 DEM data (30 m spatial resolution) with other references DEMs such as Shuttle Radar Topography Mission (SRTM) DEM and ALOS global DSM (AD3D30). The visual analysis of all the DEMs is done through a surface profile map. The surface profile map of DEM generated through stereo images shows a good correlation with reference DEMs in all regions of the profile map. This study reveals that the Cartosat-1 DEM generated through stereo images gives better accuracy than freely accessible Cartosat-1 DEM.
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Bopche, L., Rege, P.P. (2022). Improving Topographic Features of DEM Using Cartosat-1 Stereo Data. In: Iyer, B., Ghosh, D., Balas, V.E. (eds) Applied Information Processing Systems . Advances in Intelligent Systems and Computing, vol 1354. Springer, Singapore. https://doi.org/10.1007/978-981-16-2008-9_17
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DOI: https://doi.org/10.1007/978-981-16-2008-9_17
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