We present two new surface representation techniques: scooping and overdetermined Laplacian PDE approximation. Scooping reveals the terrain by removing material with a set of operators that resembling a 3-axis drill. Each operator has a square cross section, perhaps 7×7 posts, and a surface that is a polynomial of degree ranging from 0 to 3. Scoops may either partition the whole data cell, or e...

Enceladus exhibits a strong tectonic contrast between its South Polar Terrain (SPT), which is young and geologically active, and its northern hemisphere, which is relatively ancient and stable. Previous global three-dimensional spherical models of convection exhibit patterns that are symmetrical around the equator and fail to explain the formation of a hemispheric dichotomy. Here we present glo...

A method for extracting forest parameters is described in this paper. The 3D point clouds derived from phase difference laser scanners in forests were processed in a step-wise separation. The first step contains basic filter methods to reduce raw data which, separates isolated points or deletes those artefacts resulting from the ambiguity problem. The next step includes using algorithms to isol...

Hopping rovers have become a promising way of asteroid surface exploration. This paper focuses on the hopping trajectory design between two given points and discusses irregular terrain's influence process. By taking rover as point mass, dynamical equations are derived based polyhedral method. The principle planning is summarized with related solving algorithm. initial velocity increments requir...

Many satellite systems take cover images like QuickBird for terrain so that these scan be used to construct 3D models likes Triangulated Irregular Network (TIN), and Digital Elevation Model (DEM). This paper presents a production of TIN Al-Karkh University Science in Baghdad - Iraq using image data with pixel resolution 0.6 m. The recent generations high-resolution imaging open new era digital ...

Minimization of energy expenditure in autonomous mobile robots for industrial and service applications is a topic of huge importance, as it is the best way of lengthening mission time without modifying the power supply. This paper presents a method to minimize the energy consumption of a hexapod robot on irregular terrain. An energy-consumption model is derived for statically stable gaits befor...

This paper describes the design and implementation of a real-time autonomous mobile robot aimed at navigating in real farms with no operator intervention. The agricultural environment being targeted consists of an irregular terrain supporting crops or sparsely populated with objects which gives rise to complex problems of identification, monitoring and control. In this paper we introduce a fuzz...

Location awareness is an attractive research issue in the wireless sensor networks (WSN) because sensor nodes are randomly scattered over a region and can get connected into a network on their own. However, precise location information may be unavailable due to the constraint in energy, computation, or terrain. In this paper, an improved DV-HOP location algorithm based on trusty degree average ...