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- W2365179912 abstract "This study presents a structured approach to generalize DEM data through the identification of minor valley and filling the corresponding grids.The generalization process includes two steps:geographic decision and geometric operation.According to the hydrological significance,the unimportant valley branches are detected and then the corresponding coverage is filled by raising the terrain to make the terrain surface smoother.The motivation of this method is based on the consideration that topographic form is the integrated result of internal and external forces with the former constructing the main landform and the latter generating the minor landform.The terrain generalization is to obtain the original and main landform by reducing effects by external force.In contrast to the conventional algorithms based on the image processing,such as resample or low-pass filter,this method is able to remain the main geographical characteristics more effectively in terrain representation." @default.
- W2365179912 created "2016-06-24" @default.
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- W2365179912 date "2009-01-01" @default.
- W2365179912 modified "2023-09-22" @default.
- W2365179912 title "The DEM Generalization Based on the Filling Valley Coverage" @default.
- W2365179912 hasPublicationYear "2009" @default.
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