From a digital vantage point in orbit, scientists have mapped every building on Earth—2.75 billion structures, all in 3D.

LiDAR measurements hit the ground every few feet of horizontal spacing and can miss the top of sharp summits, leading to an ...

Well, here's something you don't see every day: all 2.75 billion buildings of the world shown together in a single 3D map.

Abstract: This paper introduces a Graph Slam framework for improving the accuracy of elevation-maps. The core-idea is to utilize LIDAR images in determining the relationships between the road nodes ...

Abstract: The reflections of satellite signals in the environment of Global Positioning Systems (GPS) receivers cause significant errors in their position estimates. Particularly critical are the ...

Chicago's eastern boundary is formed by Lake Michigan, and the city is divided by the Chicago River into three geographic sections: the North Side, the South Side and the West Side. These sections ...

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A Chinese doctoral student had been sentenced to 15 years in prison for illegally providing classified topographic maps and military information to foreign entities in exchange for profit, according ...