Patent application serial number 409601 has not been assigned to a company or institution.
The following quote was obtained by the news editors from the background information supplied by the inventors: "The invention concerns computing systems. More particularly, the invention concerns computing systems and methods for efficient analysis of topographical models.
"A common topographical model is a Digital Elevation Model ('DEM'). A DEM is a sampled matrix representation of a geographical area which may be generated in an automated fashion by a computer. In a DEM, coordinate points are made to correspond with a height value. DEMs are typically used for modeling terrain where the transitions between different elevations (e.g., valleys and mountains) are generally smooth from one to a next. That is, DEMs typically model terrain as a plurality of curved surfaces and any discontinuities therebetween are thus 'smoothed' over. In a typical DEM, no distinct objects are present on the terrain. This type of DEM is referred to as a Digital Terrain Model ('DTM'). A DTM is a model that represents a terrain's surface (e.g., the Earth's surface) without any objects on it (e.g., plants and buildings). DEMs are not limited to DTMs. For example, a DEM may also comprise a Digital Surface Model ('DSM'). A DSM is a model that represents a terrain's surface (e.g., the Earth's surface) with all objects on it (e.g., plants and buildings).
"There are many known systems that generate DEMs. These systems include, but are not limited to, aerial photography based systems, satellite photography based systems,
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