Results 41 to 50 of about 114,423 (180)
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.
Tcheng, Alexandra, Nave, Jean-Christophe
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Toward the Assessment of Intrinsic Geometry of Implicit Brain MRI Manifolds
IEEE Access, 2021 Principal and Gaussian curvatures are commonly used intrinsic metrics for geometric morphometrics analysis: to assess morphometric changes in brain geometry (developmental neuroimaging studies), to quantify shape deformation (organ motion assessment), or
Karim Makki +2 more
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Manitest: Are classifiers really invariant? [PDF]
, 2015 Invariance to geometric transformations is a highly desirable property of automatic classifiers in many image recognition tasks. Nevertheless, it is unclear to which extent state-of-the-art classifiers are invariant to basic transformations such as ...
Fawzi, Alhussein, Frossard, Pascal
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Applied Artificial Intelligence, 2021 The evacuation problem is usually addressed by assuming homogeneous media where pedestrians move freely in the presence of several exits and obstacles.
Severino F. Galán
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Multi UAV Coverage Path Planning in Urban Environments
Sensors, 2021 Coverage path planning (CPP) is a field of study which objective is to find a path that covers every point of a certain area of interest. Recently, the use of Unmanned Aerial Vehicles (UAVs) has become more proficient in various applications such as ...
Javier Muñoz +5 more
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Sensors, 2022 This paper studies the Fast Marching Square (FM2) method as a competitive path planner for UAV applications. The approach fulfills trajectory curvature constraints together with a significantly reduced computation time, which makes it overperform with ...
Santiago Garrido +5 more
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An Accelerated Dual Fast Marching Tree Applied to Emergency Geometric Trajectory Generation
Aerospace, 2022 This paper addresses the generation of aircraft emergency trajectories with obstacle avoidance. After presenting in detail the fast marching tree algorithm, in this paper we propose an improvement of its performance.
Andréas Guitart +2 more
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Nonholonomic Motion Planning Using the Fast Marching Square Method
International Journal of Advanced Robotic Systems, 2015 This research presents two novel approaches to nonholonomic motion planning. The methodologies presented are based on the standard fast marching square path planning method and its application to car-like robots.
César Arismendi +3 more
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Fast Marching to Branching Morphologies
Chaos, Solitons & FractalsAbstractMany living systems self-organize into tree-like hierarchical branching patterns. How the function of these systems is shaped by their morphology, and whether it reflects optimization of any resource or cost draws a sustained interest. Applications in computational biology and biomimetics require tools to generate branching morphologies across ...
Anna Kriuchechnikova +3 more
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