Image analysis – Applications – Reading maps – graphs – drawings – or schematics
Reexamination Certificate
2006-11-07
2006-11-07
Mehta, Bhavesh M. (Department: 2624)
Image analysis
Applications
Reading maps, graphs, drawings, or schematics
C382S154000, C702S005000
Reexamination Certificate
active
07133539
ABSTRACT:
A three-dimensional terrain-information generating system extracts a road region from altitude information arranged on a two-dimensional plane and adjusts the position and scale by matching the road region with a building/road map. Altitude information of a road region with a width that is greater than or equal to a preset width is obtained from the building/road map, and the obtained altitude information is arranged in a three-dimensional space. Ribbon forms that may intersect one another at a plurality of points are generated. Altitude information of a region such as a park that is almost free from the effects of a building on the three-dimensional terrain is obtained from the building/road map. Subsequently, a surface including such altitude information is created, thereby generating three-dimensional terrain data.
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patent: 6654690 (2003-11-01), Rahmes et al.
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patent: 6970593 (2005-11-01), Furukawa
patent: 6996505 (2006-02-01), Edelsbrunner et al.
Mehta Bhavesh M.
Strege John B
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