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Being located in mountain region, Rawa Danau Nature Reserve is the only one wetland area in the mountain region in Indonesis which formed very important component of its biophysical and physical environment. With the decreasing control of the local government and private agencies over the years, and rapid urban sprawl of the city, many of the water bodies have been totally lost. This has been converted to wet rice field cultivation and also expansion of illegal logging. One of our greatest environmental challenges...

Recent advances in remote sensing have changed conventional ways of collecting and processing elevation data. Especially Light Detection and Ranging (LiDAR) has become one of the leading technologies for rapid acquisition of elevation data. In this paper we present a system for digital elevation model (DEM) construction from LiDAR data. First, we present a visualization technique that allows efficient representation for LiDAR data processing. This makes the data segmentation, which is the key step in DEM generatio...