Automatic pulmonary artery-vein separation in CT images using a twin-pipe network and topology reconstruction [PDF]
PeerJ Computer Science, 2023 Background With the wide application of CT scanning, the separation of pulmonary arteries and veins (A/V) based on CT images plays an important role for assisting surgeons in preoperative planning of lung cancer surgery.
Lin Pan +7 more
doaj +2 more sources
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
openaire +1 more source
, 2022 S.423-428Background: Phase-contrast MRI (PC MRI) can be used to assess blood flow dynamics noninvasively inside the human body. The acquired images can be reconstructed into flow vector fields.
Fischer, B. +3 more
core +1 more source
Improving understanding of groundwater flow in an alpine karst system by reconstructing its geologic history using conduit network model ensembles [PDF]
Hydrology and Earth System Sciences, 2023 Reconstructing the geologic history of a karst area can advance understanding of the system's present-day hydrogeologic functioning and help predict the location of unexplored conduits.
C. Fandel +4 more
doaj +1 more source
Data mining by means of generalized patterns [PDF]
, 2012 The thesis is mainly focused on the study and the application of pattern discovery algorithms that aggregate database knowledge to discover and exploit valuable correlations, hidden in the analyzed data, at different abstraction levels.
Caraglio, Michele +8 more
core +1 more source
Autocorrection of lung boundary on 3D CT lung cancer images
Journal of King Saud University: Computer and Information Sciences, 2021 Lung cancer in men has the highest mortality rate among all types of cancer. Juxta-pleural and juxta-vascular are the most common nodules located on the lung surface.
R. Nurfauzi +3 more
doaj +1 more source
Curve Matching Using the Fast Marching Method [PDF]
, 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
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
core +1 more source
A new numerical well testing approach: Application to characterization of complex fault structures
Petroleum, 2019 Fluid flow in hydrocarbon reservoirs and consequently optimum scenario for hydrocarbon production, is heavily influenced by reservoir heterogeneities. Faults are one of the most common types of heterogeneity found in reservoirs.
Behzad Pouladi +3 more
doaj +1 more source
Unsteady nonlinear panel method with mixed boundary conditions [PDF]
FME Transactions, 2021 A new panel method had been developed to account for unsteady nonlinear subsonic flow. Two boundary conditions were used to solve the potential flow about complex configurations of airplanes.
Hamid Ali Anmar
doaj