Results 21 to 30 of about 4,163 (288)

Fast Methods for Eikonal Equations: An Experimental Survey

open access: yesIEEE Access, 2019
Fast methods are very popular algorithms to compute time-of-arrival maps (distance maps measured in time units) solving the Eikonal equation. Since fast marching was proposed in 1995, it has been applied to many different applications, such as robotics ...
J. V. Gomez   +3 more
doaj   +1 more source

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

open access: yes, 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   +11 more
core   +1 more source

Marching Cubes and Histogram Pyramids for 3D Medical Visualization

open access: yesJournal of Imaging, 2020
This paper aims to implement histogram pyramids with marching cubes method for 3D medical volumetric rendering. The histogram pyramids are used for feature extraction by segmenting the image into the hierarchical order like the pyramid shape.
Porawat Visutsak
doaj   +1 more source

Research on seamless image stitching based on fast marching method

open access: yesIET Image Processing, 2023
Image stitching is an important way to achieve large‐field high‐resolution imaging. The inconsistencies in brightness and structure and defects in ghosting, blurring and misalignment between images, which are inevitable and difficult to eliminate, make a
Weidong Pan   +4 more
doaj   +1 more source

A Modified Fast Marching Method [PDF]

open access: yes, 2003
In most, if not all fast marching methods published hitherto, the input cost function and the output arrival time are sampled on exactly the same grid. But since the input data samples are differences of the output samples we found it natural to separate the input and output grid half a sampling unit in all coordinates (two or three).We also employ 8 ...
Per-Erik Danielsson, Qingfen Lin
openaire   +1 more source

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

open access: yes, 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   +5 more
core   +1 more source

EikoNet traveltime calculation method and application based on deep neural network

open access: yes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   +5 more
doaj   +1 more source

Application of Snell's law in reflection raytracing using the multistage fast marching method

open access: yesEarthquake Research Advances, 2021
Accurate calculations of travel times and raypaths of reflection waves are important for reflection travel time tomography. The multistage shortest path method (MSPM) and multistage fast marching method (MFMM) have been widely used in reflection wave ...
Xingzhong Li, Wei Zhang
doaj   +1 more source

Curve Matching Using the Fast Marching Method [PDF]

open access: yes, 2003
Common techniques for curve alignment find a solution in the form of a shortest network path by means of dynamic programming. In this paper we present an approach that employs Sethian’s Fast Marching Method to find the solution with sub-resolution accuracy and in consistence with the underlying continuous problem.
Max Frenkel, Ronen Basri
openaire   +1 more source

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

open access: yesSensors, 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   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy