Results 21 to 30 of about 2,805 (284)

A Comparison of Local Path Planning Techniques of Autonomous Surface Vehicles for Monitoring Applications: The Ypacarai Lake Case-study

Sensors, 2020
Local path planning is important in the development of autonomous vehicles since it allows a vehicle to adapt their movements to dynamic environments, for instance, when obstacles are detected.
Federico Peralta, Mario Arzamendia, Derlis Gregor, Daniel G. Reina, Sergio Toral   +4 more
doaj   +1 more source

Computed Tomography Image Segmentation of Lung Corona Virus Infection Region Based on Combination of Grayscale Morphological Reconstruction and Fast Marching Method

Journal of Techniques, 2023
Recently, X-ray computed tomography-imaging modality is considered as golden standard for diagnosis of coronavirus lungs infection. In worldwide, infectious patients increase rapidly that lead to weariness in health services staff, as well as instant ...
Aws Alazawi, Abbas Fadhal Humadi, Huda Farooq Jameel, Huda Ali Hashim, John Soraghan   +4 more
doaj   +1 more source

PATH PLANNING OF TRACTOR-TRAILER ROBOT BY FAST MARCHING METHODE (FMM) [PDF]

مجله مدل سازی در مهندسی, 2013
This paper deals with motion planning of Tractor-trailer robots, which are car-like robot dragging several trailers with no driving force. Each trailer has a nonholonomic kinematic constraint which increases the complexity of the path planning problem ...
D. Jannat, E. Masehian
doaj   +1 more source

An Exact Algorithm for Task Allocation of Multiple Unmanned Surface Vehicles with Minimum Task Time

Journal of Marine Science and Engineering, 2021
Task allocation of unmanned surface vehicles (USVs) with low task cost is an important research area which assigns USVs from starting points to different target points to complete tasks.
Kai Xue, Zhiqin Huang, Ping Wang, Zeyu Xu   +3 more
doaj   +1 more source

Combined Path and Motion Planning for Workspace Restricted Mobile Manipulators in Planetary Exploration

IEEE Access, 2023
A highly restricted workspace of the robotic arm may hinder to perform safely any autonomous mobile manipulation task with planetary exploration rovers.
Gonzalo J. Paz-Delgado, J. Ricardo Sanchez-Ibanez, Raul Dominguez, Carlos J. Perez-Del-Pulgar, Frank Kirchner, Alfonso Garcia-Cerezo   +5 more
doaj   +1 more source

Explicit Solution of the Time Domain Volume Integral Equation Using a Stable Predictor-Corrector Scheme [PDF]

, 2012
An explicit marching-on-in-time (MOT) scheme for solving the time domain volume integral equation is presented. The proposed method achieves its stability by employing, at each time step, a corrector scheme, which updates/corrects fields computed by the ...
Bağcı, H, Benson, Trevor, Sewell, P, Vukovic, A, Al Jarro, Ahmed, Bagci, Hakan, Al-Jarro, A, Benson, TM, Salem, MA, Salem, Mohamed, Sewell, Phillip D., Vuković, Ana   +11 more
core   +1 more source

Fast reliable interrogation of procedurally defined implicit surfaces using extended revised affine arithmetic. [PDF]

, 2010
Techniques based on interval and previous termaffine arithmetic next term and their modifications are shown to provide previous term reliable next term function range evaluation for the purposes of previous termsurface interrogation.next term In this ...
Fryazinov, Oleg, Alexander Pasko, Peter Comninos, Pasko, Alexander, Comninos, Peter, Oleg Fryazinov   +5 more
core   +1 more source

Topological Data Structure: The Fast Marching Example

, 2023
International audienceThis article lies in the field of front propagation algorithms on a surface represented by triangle meshes. An implementation of the fast marching algorithm using a topological structure, the generalized maps or gmaps, as the data ...
Bay, Thierry, Fuchs, Laurent, Belhaouari, Hakim, Toujja, Sofian   +3 more
core   +1 more source

Three-dimensional measurement method based on the singular operator and the shortest path search technique

Frontiers in Physics, 2023
Coded structured light plays a crucial role in the field of non-contact three-dimensional measurement. To improve the accuracy, we propose a novel method based on shortest path search and edge and central singular operator, which is able to detect the ...
Yongliang Wang, Xiaoming Sun, Yan Duan, Yan Chen   +3 more
doaj   +1 more source

MSFM-Based Seismic Traveltime Calculation Using Coarse-Grid Interpolation [PDF]

Lithosphere
Computing seismic traveltime constitutes an essential task for seismic imaging and inversion processes. Accurate traveltime computation provides essential parameters for simulating seismic wave propagation, locating seismic sources, establishing velocity
Hui Sun, Rui Chen, Fanchang Meng, Wei Zhang, Yansong Li, Jian Zhang, Shoujin Jiang   +6 more
doaj   +1 more source