Results 41 to 50 of about 3,580 (288)

Left-ventricle myocardium segmentation using a coupled level-set with a priori knowledge [PDF]

, 2006
This paper presents a coupled level-set segmentation of the myocardium of the left ventricle of the heart using a priori information. From a fast marching initialisation, two fronts representing the endocardium and epicardium boundaries of the left ...
Lynch, Michael, Ghita, Ovidiu, Whelan, Paul F.   +2 more
core   +1 more source

Vessel network extraction and analysis of mouse pulmonary vasculature via X-ray micro-computed tomographic imaging.

PLoS Computational Biology, 2021
In this work, non-invasive high-spatial resolution three-dimensional (3D) X-ray micro-computed tomography (μCT) of healthy mouse lung vasculature is performed.
Eric A Chadwick, Takaya Suzuki, Michael G George, David A Romero, Cristina Amon, Thomas K Waddell, Golnaz Karoubi, Aimy Bazylak   +7 more
doaj   +1 more source

Fractional laplacians viscoelastic wave equation low-rank temporal extrapolation

Frontiers in Earth Science, 2023
The fractional Laplacians constant-Q (FLCQ) viscoelastic wave equation can describe seismic wave propagation accurately in attenuating media. A staggered-grid pseudo-spectral (SGPS) method is usually applied to solve this wave equation but it is of only ...
Hanming Chen, Hanming Chen, Hanming Chen, Lifu Zhang, Lifu Zhang, Lifu Zhang, Hui Zhou, Hui Zhou, Hui Zhou   +8 more
doaj   +1 more source

Two Fast Marching Methods for Hamilton–Jacobi Equations [PDF]

PAMM, 2007
AbstractWe introduce and analyze two new Fast Marching (FM) methods based on a semi‐Lagrangian (SL) approximation (see [2] for a more complete presentation). The Characteristics driven Fast Marching method accepts more than one node at every iteration using a dynamic condition which leads to a faster convergence.
CRISTIANI, Emiliano, FALCONE, Maurizio
openaire   +1 more source

Feature extraction from mammographic images using fast marching methods

, 2002
Features extraction from medical images represents a fundamental step for shape recognition and diagnostic support. The present work faces the problem of the detection of large features, such as massive lesions and organ contours, from mammographic ...
Golosio B., GOLOSIO, BRUNO, U. BOTTIGLI, Bottigli U.   +3 more
core   +1 more source

Research Status and Prospect of AUV Path Planning Algorithms

Jisuanji kexue yu tansuo, 2020
Path planning algorithm is one of the core algorithms for autonomous underwater vehicle (AUV) to complete autonomous underwater cruise. In this paper, two kinds of AUV path planning algorithms based on environment modeling and path searching are reviewed.
GUO Yinjing, MENG Qingliang, KONG Fang, LYU Wenhong
doaj   +1 more source

FM² Path Planner for UAV Applications with Curvature Constraints: A Comparative Analysis with Other Planning Approaches

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, Javier Muñoz, Blanca López, Fernando Quevedo, Concepción A. Monje, Luis Moreno   +5 more
doaj   +1 more source

Gaussian processes and Fast Marching Square based informative path planning [PDF]

, 2023
The exploration of unknown environments is a challenge in robotics. The proposed method approaches this problem by combining the Fast Marching Square path planning technique with the machine learning method called Gaussian processes (GP).
Monje Micharet, Concepción Alicia, Javier Muñoz, López, Blanca, Muñoz, Javier, Santiago Garrido, Luis E. Moreno, Quevedo Vallejo, Fernando, Garrido Bullón, Luis Santiago, Blanca López, Fernando Quevedo, Concepción A. Monje, Moreno Lorente, Luis Enrique   +11 more
core   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

Molecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi, Stavros Makrodimitris, Sandra van Wilpe, Iris te Paske, Vanja de Weerd, Corine M. Beaufort, Hans M. Westgeest, Jens Voortman, Maureen J. B. Aarts, Maud Rijnders, Astrid A. M. van der Veldt, Ronald de Wit, Niven Mehra, Saskia M. Wilting, Debbie G. J. Robbrecht   +14 more
wiley   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source