نتایج جستجو برای: terrain model

تعداد نتایج: 2116482  

2006
Tony Bernardin Eric Cowgill Ryan Gold Bernd Hamann Oliver Kreylos Alfred Schmitt

We present an interactive, real-time mapping system for use with digital elevation models and remotely sensed multispectral imagery, which aids geoscientists in the creation and interpretation of geologic/neotectonic maps at length scales of 10m to 1000 km. Our system provides a terrain visualization of the surface of the Earth or other terrestrial planets by displaying a virtual terrain model ...

Journal: :J. Field Robotics 2010
Ambroise Krebs Cédric Pradalier Roland Siegwart

Due to the fundamental nature of all-terrain exploration, autonomous rovers are confronted with unknown environments. This is especially apparent regarding to soil interactions, as the nature of the soil is typically unknown. This work aims at establishing a framework from which the rover can learn from its interaction with the terrains encountered and shows the importance of such a method. We ...

1988
Nageswara S. V. Rao Neal W. Stoltzfus S. Sitharama Iyengar

We consider the following problem (called the terrain model acquisition problem): A point robot R is placed in a finite-sized two-dimensional obstacle terrain populated by a set 0 = {01,02, ,On} of unknown polygonal obstacles. Each obstacle Oi is a finite-sized polygon with a finite number of vertices. Initially the number of obstacles in the terrain is unknown to R . And also, the number and t...

2005
N. Matsumoto N. Asada H. Demura

Introduction: ESA, SMART-1 has orbited around the Moon [1], Space Agencies of Japan, China, and India have expressed subsequent moon missions, and USA announced a return to the moon in New Vision for Space Exploration Program [2]. We have a Moon Rush. Japanese SELENE mission [3] has 14 instruments, and is going to provide a dataset more than 20TB. These massive and diverse data raise awareness ...

2008
Manuel N. Gamito Steve C. Maddock

Terrains for computer graphics have traditionally been modelled with height fields. In the case of procedurally defined terrains, the height field is generated by a displacement map z = f (x,y). Displacement maps, however, do not allow the formation of such terrain features as overhangs, arches or caves. The most flexible approach to model procedural terrain is to consider it as an implicit sur...

2012
J. Williams

Mobile robots traversing disaster sites, extraterrestrial landscapes, and other outdoor environments will encounter terrain covered with loose stones or rubble. When traversing such granular terrain, it will be important for the robot to have a model of available traction forces that can be used to plan trajectories and control the robot’s gait as it crosses the terrain. Interaction with granul...

2010
Kristofer Davis M. Andy Kass Yaoguo Li

We present a method for modeling the terrain response in gravity and gravity gradiometry surveys utilizing an adaptive quadtree mesh discretization. The data-dependent method is tailored to provide rapid and accurate spatial terrain corrections for ground or draped airborne surveys. The surface used in the modeling of terrain effect at each datum is discretized automatically to the largest cell...

2014
Chen Si Yusuf Pisan Chek Tien Tan

Real-time strategy (RTS) games represent a mainstream genre of video games. They are also practical test-beds for intelligent agents, which have received considerable interest from Artificial Intelligence (AI) researchers, in particular game AI researchers. Terrain knowledge understanding is a fundamental issue for RTS agents and map decomposition methods can help AI agents in representing terr...

Journal: :Journal of the Air & Waste Management Association 1992

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