Taking timely measures for management of the natural resources requires knowledge of the dynamic environment and land use practices in the rapidly changing postindustrial world. We used the SLUETH urban growth modeling and a multi-criteria evaluation (MCE) technique to predict and allocate land available to landfill as affected by the dynamics of the urban growth. The city is Gorgan, the capita...

My big unsolved problem: Invent mathematics to easily represent legal terrain (elevation). Terrain properties: many maxima • few minima • often monotonically decreasing • occasional discontinuities. Applications: To put terrain operations like visibility, hydrography, compression on a proper formal foundation • To process large databases. Tools: very large memory • parallel HW (openMP, CUDA). A...

Future planetary exploration missions will require rovers to perform difficult tasks in rough terrain, with limited human supervision. Knowledge of terrain physical characteristics would allow a rover to adapt its control and planning strategies to maximize its effectiveness. This paper describes recent and current work at MIT in the area of terrain estimation and sensing. A method for on-line ...

Synthesizing terrain or adding detail to terrains manually is a long and tedious process. With procedural synthesis methods this process is faster but more difficult to control. This paper presents a new technique of terrain synthesis that uses an existing terrain to synthesize new terrain. To do this we use multi-resolution analysis to extract the high-resolution details from existing models a...

To solve the problem of three-dimensional terrain simplification in large-scale based on digital elevation model data, a terrain simplified method based on the theory of spatial autocorrelation was proposed. According to principle of regional similarities in geomorphology, a cluster analysis was performed on the terrain data to get the thresholds distinguish terrain features. On the basis, the ...

In the 1.5-dimensional terrain guarding problem we are given as input an x-monotone chain (the terrain) and asked for the minimum set of guards (points on the terrain) such that every point on the terrain is seen by at least one guard. It has recently been shown that the 1.5-dimensional terrain guarding problem is approximable to within a constant factor [3,7], though no attempt has been made t...

Discriminating or classifying different terrains is an important ability for every autonomousmobile robot. A variety of sensors, preprocessing techniques, and algorithms in different robots were applied. However, little attentionwas paid to theway sensory datawas generated and to the contribution of different sensory modalities. In this work, a quadruped robot traversing different grounds using...

Annual use, utilization, productivity and fuel consumption of three purpose-built and three excavator-based harvesters and processors were monitored for one work year. All machines were owned and operated by private contractors and were representative of the Italian machine fleet. Despite challenging mountain terrain, annual use ranged from 675 to 1525 h per year, and production from 3200 to 27...

Exploration Rovers 2 3 4 Christopher A. Brooks, Karl Iagnemma 5 Department of Mechanical Engineering 6 Massachusetts Institute of Technology 7 Cambridge, MA 02139 8 [email protected], [email protected] 9 10 Abstract 11 12 For future planetary exploration missions, improvements in autonomous rover 13 mobility have the potential to increase scientific data return by providing safe 14 access to geol...

This paper introduces novel methods for terrain classification and characterization with a mobile robot. In the context of this paper, terrain classification aims at associating terrains with one of a few predefined, commonly known categories, such as gravel, sand, or asphalt. Terrain characterization, on the other hand, aims at determining key parameters of the terrain that affect its ability ...