نتایج جستجو برای: ordered subsets expectation maximization

تعداد نتایج: 139368  

Journal: :IEEE Geoscience and Remote Sensing Letters 2022

The recent evolution of hyperspectral imaging technology and the proliferation new emerging applications presses for processing multiple temporal images. In this work, we propose a novel spectral unmixing (SU) strategy using physically motivated parametric endmember representations to account variability. By representing multitemporal mixing process state-space formulation, are able exploit Bay...

2016
Bal Sanghera Katie Wood Luke I Sonoda Andrew Gogbashian Gerry Lowe Andre Nunes James Stirling Chris Shepherd Gwen Beynon Wai Lup Wong

OBJECTIVE Application of distinct positron emission tomography (PET) scan reconstruction algorithms can lead to statistically significant differences in measuring lesion functional properties. We looked at the influence of two-dimensional filtered back projection (2D FBP), two-dimensional ordered subset expectation maximization (2D OSEM), three-dimensional ordered subset expectation maximizatio...

Journal: :EURASIP Journal on Audio, Speech, and Music Processing 2021

Journal: :Review of Scientific Instruments 2021

We develop a new algorithm for the tracking of radioactive particles using Positron Emission Particle Tracking (PEPT). The relies on maximization likelihood simple Gaussian mixture model lines response associated with positron annihilation. includes component that accounts spurious caused by scattering and random coincidence, it treats relative activity as well their positions parameters to be ...

Journal: :IEEE Transactions on Circuits and Systems for Video Technology 2022

In recent years, with the rapid development of deep learning, super-resolution methods based on convolutional neural networks (CNNs) have made great progress. However, parameters and required consumption computing resources these are also increasing to point that such difficult implement devices low power. To address this issue, we propose a lightweight single image network an expectation-maxim...

Journal: :EURASIP Journal on Advances in Signal Processing 2006

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