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1,441
Next century challenges: Scalable coordination in sensor networks
, 1999
"... Networked sensors-those that coordinate amongst them-selves to achieve a larger sensing task-will revolutionize information gathering and processing both in urban environments and in inhospitable terrain. The sheer numbers of these sensors and the expected dynamics in these environments present uniq ..."
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Cited by 1116 (37 self)
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Networked sensors-those that coordinate amongst them-selves to achieve a larger sensing task-will revolutionize information gathering and processing both in urban environments and in inhospitable terrain. The sheer numbers of these sensors and the expected dynamics in these environments present
Path Selection Based on Local Terrain Feature for Unmanned Ground Vehicle in Unknown Rough Terrain Environment
"... Abstract—In this paper, we propose an autonomous nav-igation for Unmanned Ground Vehicles (UGVs) by a path selection method based on local features of terrain in unknown outdoor rough terrain environment. The correlation between a local terrain feature obtained from a path and a value of the path ob ..."
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Abstract—In this paper, we propose an autonomous nav-igation for Unmanned Ground Vehicles (UGVs) by a path selection method based on local features of terrain in unknown outdoor rough terrain environment. The correlation between a local terrain feature obtained from a path and a value of the path
6.02 Utilizing Local Terrain to Determine Targeted Weather Observation Locations ∗
"... Many of the recent conflicts where the United States (US) military forces have been deployed are regions that contain complex terrain (i.e. Korea, Kosovo, Afghanistan, and northern Iraq). Accurate weather forecasts are critical to the success of operations in ..."
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Many of the recent conflicts where the United States (US) military forces have been deployed are regions that contain complex terrain (i.e. Korea, Kosovo, Afghanistan, and northern Iraq). Accurate weather forecasts are critical to the success of operations in
Local Terrain Mapping for Obstacle Avoidance using Monocular Vision
"... We present a method for navigation of a small unmanned rotorcraft through an unsurveyed envi-ronment consisting of forest and urban canyons. Optical flow measurements obtained from a vision system are fused with measurements of vehicle velocity to compute estimates of range to obstacles. These estim ..."
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Cited by 1 (0 self)
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. These estimates are used to populate a local occupancy grid which is fixed to the vehicle. This local occupancy grid allows modeling of complex environments and is suitable for use by generic trajectory planners. Results of simulations in a two-dimensional environment using a potential field obstacle avoidance
Research Article GPS/Reduced IMU with a Local Terrain Predictor in Land Vehicle Navigation
, 2008
"... In order to reduce the cost and volume of land vehicle navigation (LVN) systems, a “reduced ” inertial measurement unit (IMU) consisting of only one vertical gyro and two or three accelerometers is generally used and is often integrated with other sensors. Since there are no horizontal gyros in a re ..."
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reduced IMU, the pitch and roll cannot be calculated or observed directly from the inertial data, and the navigation performance is thus affected by local terrain variations. In this work, a reduced IMU is integrated with global positioning system (GPS) data and a novel local terrain predictor (LTP
Building Local Terrain Maps Using Spatio–Temporal Classification for Semantic Robot Localization
"... Abstract — The correct classification of the surrounding ter-rain is an important ability of a mobile robot that drives in outdoor environments. Our robot uses a 3D LIDAR and a camera to classify terrain as either asphalt, cobblestones, grass, or gravel. We build on previous work where we modeled th ..."
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. This not only further improves the results, but makes it possible to build local terrain maps of the environment. We describe how to efficiently integrate the classification results of each time step into the map in a probabilistic manner. By also detecting obstacles with the LIDAR, the robot can build combined
Application of Appropriate Technologies to 3D Local Terrain Modeling in Real-time for Intelligent Excavating System (IES)
, 2009
"... Abstract Automation in construction is considered as one of solutions to fundamental problems which the construction industry has confronted. The development of real-time 3D local terrain modeling is the core methodology of achievement of IES (Intelligent Excavating System) which is a mega-size res ..."
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Abstract Automation in construction is considered as one of solutions to fundamental problems which the construction industry has confronted. The development of real-time 3D local terrain modeling is the core methodology of achievement of IES (Intelligent Excavating System) which is a mega
Smooth View-Dependent Level-of-Detail Control and Its Application to Terrain Rendering
"... The key to real-time rendering of large-scale surfaces is to locally adapt surface geometric complexity to changing view parameters. Several schemes have been developed to address this problem of view-dependent level-of-detail control. Among these, the viewdependent progressive mesh (VDPM) framewor ..."
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Cited by 264 (1 self)
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The key to real-time rendering of large-scale surfaces is to locally adapt surface geometric complexity to changing view parameters. Several schemes have been developed to address this problem of view-dependent level-of-detail control. Among these, the viewdependent progressive mesh (VDPM
Optimal and efficient path planning for partially-known environments
- In IEEE Int’l. Conference on Robotics and Automation
, 1994
"... The task of planning trajectories for a mobile robot has received considerable attention in the research literature. Most of the work assumes the robot has a complete and accurate model of its environment before it begins to move; less attention has been paid to the problem of partially known enviro ..."
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Cited by 281 (36 self)
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environments. This situation occurs for an exploratory robot or one that must move to a goal location without the benejit of ajloorplan or terrain map. Existing approaches plan an initial path based on known information and then modijj the plan locally or replan the entire path as the robot discovers obstacles
The Synthesis and Rendering of Eroded Fractal Terrains
, 1989
"... Mountain View, California 9403 In standard fractal terrain models based on fractional d Brownian motion the statistical character of the surface is, by esign, the same everywhere. A new approach to the synthesis p of fractal terrain height fields is presented which, in contrast to revious techniq ..."
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Cited by 138 (2 self)
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Mountain View, California 9403 In standard fractal terrain models based on fractional d Brownian motion the statistical character of the surface is, by esign, the same everywhere. A new approach to the synthesis p of fractal terrain height fields is presented which, in contrast to revious
Results 1 - 10
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1,441
