Results 21 to 30 of about 5,484 (295)
, 2023 Leveraging geodesic distances and the geometrical information they convey is key for many data-oriented applications in imaging. Geodesic distance computation has been used for long for image segmentation using Image based metrics. We introduce a new method by generating isotropic Riemannian metrics adapted to a problem using CNN and give as ...
Théo Bertrand +2 more
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Marching Cubes and Histogram Pyramids for 3D Medical Visualization
Journal 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
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Fast Methods for Eikonal Equations: An Experimental Survey
IEEE 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
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Research on seamless image stitching based on fast marching method
IET 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
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A Generalized Fast Marching Method for Dislocation Dynamics [PDF]
SIAM Journal on Numerical Analysis, 2011 In this paper, we consider a generalized fast marching method (GFMM) as a numerical method to compute dislocation dynamics. The dynamics of a dislocation hypersurface in $\mathbb{R}^N$ (with $N=2$ for physical applications) is given by its normal velocity which is a nonlocal function of the whole shape of the hypersurface itself.
Elisabetta Carlini +2 more
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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 +11 more
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A Modified Fast Marching Method [PDF]
, 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
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A Fast-marching Algorithm for Nonmonotonically Evolving Fronts [PDF]
SIAM Journal on Scientific Computing, 2016 The non-monotonic propagation of fronts is considered. When the speed function $F:\mathbb{R}^{n} \times [0,T]\rightarrow \mathbb{R}$ is prescribed, the non-linear advection equation $ϕ_{t}+F|\nabla ϕ|=0$ is a Hamilton-Jacobi equation known as the level-set equation.
Alexandra Tcheng, Jean-Christophe Nave
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Revista UIS Ingenierías, 2016 El level set method es una técnica que se utiliza habitualmente para describir matemáticamente la propagación de superficies mediante la aproximación y resolución de ecuaciones diferenciales.
Vicente Francisco González Albuixech +2 more
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COLREGs Experience-Based Real-Time Route Planning of Intelligent Ship
IEEE Access, 2023 The route planning of intelligent ship has been studied a lot, especially in the dynamic planning of collision avoidance, but it is still faced with some difficulties, such as complex model structure, poor compatibility of collision avoidance rules ...
Yu Peng
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