GIS applications are conducted through the use of special operators such as the following : – Interpolation : This process derives elevation data for points at which no samples have been taken. It includes computation at single points, computation for a rectangular grid or along a contour, and so forth. – Interpretation : Digital terrain [...]
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A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. GIS software represents features on the earth, such as buildings, cities, roads, rivers, and states, on a computer. People use GIS to visualize, question, analyze, and understand this data about the world and [...] Many inherent characteristics of multimedia data have direct and indirect impacts on the design of multimedia databases. These include : the huge size of MMDBs, temporal nature, richness of content, complexity of representation and subjective interpretation. The major challenges in designing multimedia databases arise from several requirements they need to satisfy such as the following: [...] Multimedia data typically means digital images, audio, video, animation and graphics together with text data. The acquisition, generation, storage and processing of multimedia data in computers and transmission over networks have grown tremendously in the recent past. Multimedia data are blessed with a number of exciting features. They can provide more effective dissemination of information [...] |
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