Articles with "motion model" as a keyword



Motion modeling from 4D MR images of liver simulating phantom

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Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13611

Abstract: Abstract Background and purpose A novel method of retrospective liver modeling was developed based on four‐dimensional magnetic resonance (4D‐MR) images. The 4D‐MR images will be utilized in generation of the subject‐specific deformable liver model to… read more here.

Keywords: motion model; motion; mri method; liver simulating ... See more keywords
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A 4D global respiratory motion model of the thorax based on CT images: A proof of concept

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Published in 2018 at "Medical Physics"

DOI: 10.1002/mp.12982

Abstract: Purpose Respiratory motion reduces the sensitivity and specificity of medical images especially in the thoracic and abdominal areas. It may affect applications such as cancer diagnostic imaging and/or radiation therapy (RT). Solutions to this issue… read more here.

Keywords: motion; motion model; model; global respiratory ... See more keywords
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Autoadaptive motion modelling for MR‐based respiratory motion estimation

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Published in 2017 at "Medical Image Analysis"

DOI: 10.1016/j.media.2016.06.005

Abstract: &NA; Respiratory motion poses significant challenges in image‐guided interventions. In emerging treatments such as MR‐guided HIFU or MR‐guided radiotherapy, it may cause significant misalignments between interventional road maps obtained pre‐procedure and the anatomy during the… read more here.

Keywords: surrogate data; motion; motion model; model ... See more keywords
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Verification and improvement of dynamic motion model in MARS for marine reactor thermal-hydraulic analysis under ocean condition

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Published in 2019 at "Nuclear Engineering and Technology"

DOI: 10.1016/j.net.2019.02.018

Abstract: Abstract Unlike land-based nuclear power plants, a marine or floating reactor is affected by external forces due to ocean conditions. These external forces can cause additional accelerations and affect each system and equipment of the… read more here.

Keywords: motion model; dynamic motion; motion; thermal hydraulic ... See more keywords
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Dependence of subject-specific parameters for a fast helical CT respiratory motion model on breathing rate: an animal study.

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Published in 2018 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/aaaa15

Abstract: To determine if the parameters relating lung tissue displacement to a breathing surrogate signal in a previously published respiratory motion model vary with the rate of breathing during image acquisition. An anesthetized pig was imaged… read more here.

Keywords: surrogate signals; motion model; model; rate ... See more keywords
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Method for a motion model based automated four-dimensional dose calculation.

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Published in 2019 at "Physics in medicine and biology"

DOI: 10.1088/1361-6560/ab4e51

Abstract: The Vero system can treat intra-fractionally moving tumors with gimbaled dynamic tumor tracking (DTT) by rotating the treatment beam so that it follows the motion of the tumor. However, the changes in the beam geometry… read more here.

Keywords: motion; dose calculation; treatment; motion model ... See more keywords
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A Literature Review on Train Motion Model Calibration

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Published in 2023 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2023.3236062

Abstract: The dynamics of a moving train are usually described by means of a motion model based on Newton’s second law. This model uses as input track geometry data and train characteristics like mass, the parameters… read more here.

Keywords: train motion; train; calibration; motion model ... See more keywords
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Learning a Generative Motion Model From Image Sequences Based on a Latent Motion Matrix

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Published in 2021 at "IEEE Transactions on Medical Imaging"

DOI: 10.1109/tmi.2021.3056531

Abstract: We propose to learn a probabilistic motion model from a sequence of images for spatio-temporal registration. Our model encodes motion in a low-dimensional probabilistic space – the motion matrix – which enables various motion analysis… read more here.

Keywords: registration; motion model; model; motion matrix ... See more keywords
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Physical education teaching for saving energy in basketball sports athletics using Hidden Markov and Motion Model

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Published in 2021 at "Computational Intelligence"

DOI: 10.1111/coin.12343

Abstract: A new trend of schooling is characterized by long‐term learning and driven by technological, social, and cultural developments. This trend means that physical education (PE) and sports science must be strengthened. Although PE and sports… read more here.

Keywords: motion model; basketball; physical education; energy ... See more keywords
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Simplified methods to estimate mean hazard due to updated ground motion model: Application to nuclear power plants in CEUS

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Published in 2021 at "Earthquake Spectra"

DOI: 10.1177/87552930211007499

Abstract: Two methods were developed to estimate updated mean seismic hazard for existing probabilistic seismic hazard analyses (PSHAs) due to a change in the ground motion model (GMM). Both methods were used to estimate updated hazard… read more here.

Keywords: hazard; nuclear power; motion model; model ... See more keywords
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Three-dimensional localization refinement and motion model parameter estimation for confined single particle tracking under low-light conditions.

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Published in 2021 at "Biomedical optics express"

DOI: 10.1364/boe.432187

Abstract: Confined diffusion is an important model for describing the motion of biological macromolecules moving in the crowded, three-dimensional environment of the cell. In this work we build upon the technique known as sequential Monte Carlo… read more here.

Keywords: three dimensional; motion model; model; camera ... See more keywords