Results 11 to 20 of about 33,561,195 (290)

Neural KEM: A Kernel Method With Deep Coefficient Prior for PET Image Reconstruction. [PDF]

open access: yesIEEE Trans Med Imaging, 2023
Image reconstruction of low-count positron emission tomography (PET) data is challenging. Kernel methods address the challenge by incorporating image prior information in the forward model of iterative PET image reconstruction. The kernelized expectation-
Li S   +5 more
europepmc   +3 more sources

Anatomical image-guided fluorescence molecular tomography reconstruction using kernel method. [PDF]

open access: yesJ Biomed Opt, 2017
. Fluorescence molecular tomography (FMT) is an important in vivo imaging modality to visualize physiological and pathological processes in small animals.
Baikejiang R   +4 more
europepmc   +2 more sources

Anatomically-aided PET reconstruction using the kernel method. [PDF]

open access: yesPhys Med Biol, 2016
This paper extends the kernel method that was proposed previously for dynamic PET reconstruction, to incorporate anatomical side information into the PET reconstruction model.
Hutchcroft W   +4 more
europepmc   +2 more sources

PET image reconstruction using kernel method. [PDF]

open access: yesIEEE Trans Med Imaging, 2015
Image reconstruction from low-count positron emission tomography (PET) projection data is challenging because the inverse problem is ill-posed. Prior information can be used to improve image quality.
Wang G, Qi J.
europepmc   +2 more sources

Reproducing kernel Hilbert space method based on reproducing kernel functions for investigating boundary layer flow of a Powell–Eyring non-Newtonian fluid

open access: yesJournal of Taibah University for Science, 2019
In this work, the boundary layer flow of a Powell–Eyring non-Newtonian fluid over a stretching sheet has been investigated by a reproducing kernel method. Reproducing kernel functions are used to obtain the solutions.
Ali AKGÜL
exaly   +2 more sources

A deep kernel method for lithofacies identification using conventional well logs

open access: yesPetroleum Science, 2022
How to fi t a properly nonlinear classi fi cation model from conventional well logs to lithofacies is a key problem for machine learning methods. Kernel methods (e.g., KFD, SVM, MSVM) are effective attempts to solve this issue due to abilities of handling ...
Shaoqun Dong   +7 more
semanticscholar   +1 more source

Kernel methods

open access: yes, 2023
This chapter introduces a powerful class of machine learning approaches called kernel methods, which present an alternative to arguably more widely known neural network approaches. Kernel methods can learn even highly nonlinear problems by making an implicit transformation from a low-dimensional input space into a higher-dimensional feature space. This
Pinheiro Jr, Max, Dral, Pavlo
openaire   +2 more sources

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