Terrain Sculptor: Generalizing Terrain Models for Relief Shading
نویسندگان
چکیده
منابع مشابه
Terrain Analysis Using Radar Shape-from-Shading
This paper develops a maximum a posteriori (MAP) probability estimation framework for shape-from-shading (SFS) from synthetic aperture radar (SAR) images. The aim is to use this method to reconstruct surface topography from a single radar image of relatively complex terrain. Our MAP framework makes explicit how the recovery of local surface orientation depends on the whereabouts of terrain edge...
متن کاملHill-shading Techniques to Enhance Terrain Maps
Maps shading terrain as if illuminated by a point light source (i.e. hill-shading) are commonly used in cartographic displays. These hill-shaded maps are especially important for representing mountainous areas, due to the rapid variations in the orientation of terrain elements. Although these hill-shaded maps reveal the coarser landforms and the finer texture of the terrain, they can be enhance...
متن کاملAutomated Small-scale Relief Shading: a New Method and Software Application
Shaded relief derived from high-resolution terrain models often contains distracting terrain details that need to be removed for medium and small scale mapping. This paper introduces Terrain Sculptor, a software application that prepares generalized terrain models for relief shading. The application uses a generalization methodology based on a succession of raster operations. Terrain Sculptor o...
متن کاملQuality Measures for Digital Terrain Models
In the last few years a lot of new possibilities for the acquisition of terrain data were developed. Next to new developments in the area of digital photogrammetry due to automated image matching techniques, laserscanning has revolutionized the capturing of topographic data. For digital terrain models (DTMs) derived from “traditional” photogrammetric techniques accuracy measures, which were der...
متن کاملDatabase Support for Multi-Resolution Terrain Models
Terrain data of very large scale is widely used in many applications, such as virtual reality, environmental analysis, and GIS. The large size of terrain data makes it very demanding on memory and processing power during visualization and spatial analysis. Multi-resolution techniques have been introduced to address this problem. A Multi-Resolution Terrain Model (MRTM) can provide a large number...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cartographic Perspectives
سال: 2010
ISSN: 1048-9053
DOI: 10.14714/cp67.114