Results 51 to 60 of about 114,423 (180)

FAST COMPUTATION OF ALL PAIRS OF GEODESIC DISTANCES

Image Analysis and Stereology, 2011
Computing an array of all pairs of geodesic distances between the pixels of an image is time consuming. In the sequel, we introduce new methods exploiting the redundancy of geodesic propagations and compare them to an existing one.
Guillaume Noyel, Jesús Angulo, Dominique Jeulin   +2 more
doaj   +1 more source

Geodesics in Heat

, 2012
We introduce the heat method for computing the shortest geodesic distance to a specified subset (e.g., point or curve) of a given domain. The heat method is robust, efficient, and simple to implement since it is based on solving a pair of standard linear
Belkin M., Belkin M., Bommes D., Clarisse Weischedel, Desbrun M., Hysing S., Keenan Crane, Max Wardetzky   +7 more
core   +3 more sources

Comprehensive Simulations for Ultraviolet Lithography Process of Thick SU-8 Photoresist

Micromachines, 2018
Thick SU-8 photoresist has been a popular photoresist material to fabricate various mechanical, biological, and chemical devices for many years. The accuracy and precision of the ultraviolet (UV) lithography process of thick SU-8 depend on key parameters
Zai-Fa Zhou, Qing-An Huang
doaj   +1 more source

A minimalistic approach for fast computation of geodesic distances on triangular meshes

, 2019
The computation of geodesic distances is an important research topic in Geometry Processing and 3D Shape Analysis as it is a basic component of many methods used in these areas.
Calla, Luciano A. Romero, Montenegro, Anselmo A., Perez, Lizeth J. Fuentes   +2 more
core   +1 more source

Video Segmentation Using Fast Marching and Region Growing Algorithms

EURASIP Journal on Advances in Signal Processing, 2002
The algorithm presented in this paper is comprised of three main stages: (1) classification of the image sequence and, in the case of a moving camera, parametric motion estimation, (2) change detection having as reference a fixed frame, an appropriately ...
Eftychis Sifakis, Ilias Grinias, Georgios Tziritas   +2 more
doaj   +1 more source

Two-dimensional fast marching for geometrical optics

Optics Express, 2014
We develop an approach for the fast and accurate determination of geometrical optics solutions to Maxwell's equations in inhomogeneous 2D media and for TM polarized electric fields. The eikonal equation is solved by the fast marching method. Particular attention is paid to consistently discretizing the scatterers' boundaries and matching the ...
CAPOZZOLI, AMEDEO, CURCIO, CLAUDIO, LISENO, ANGELO, Salvatore Savarese   +3 more
openaire   +4 more sources

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

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

Shapes of leading tunnelling trajectories for single-electron molecular ionization

, 2011
Based on the geometrical approach to tunnelling by P.D. Hislop and I.M. Sigal [Memoir. AMS 78, No. 399 (1989)], we introduce the concept of a leading tunnelling trajectory. It is then proven that leading tunnelling trajectories for single-active-electron
Agmon S, Arnold V I, Awasthi M, Bin Z, Chu K T, Denys I Bondar, Dunne G V, Evans L C, Feynman R P, Helffer B, Hislop P D, Hislop P D, Kimmel R, Kjeldsen T K, Kroon D-J, Landau L, Landau L D, Levkov D G, Mueller-Kirsten H, Murray R, Nikitin E E, Nikitin E E, Peierls R E, Perelomov A M, Perelomov A M, Perelomov A M, Peyre G, Plummer M, Popov V S, Popov V S, Schulman L S, Sethian J A, Talebpour A, Vainshtein A I, Walters Z B, Wing-Ki Liu   +35 more
core   +1 more source

EikoNet traveltime calculation method and application based on deep neural network

地球与行星物理论评, 2023
Seismic wave traveltime calculation plays an important role in many areas of seismology, such as seismic tomography, migration and microseismic location.
Shi Yao, Jue Hou, Yuepeng Huang, Tao Xu, Zhiming Bai, Zhenghui Gao   +5 more
doaj   +1 more source