Comparison of Low‐Pass Filters for SPECT Imaging

IS Sayed, SS Ismail - International journal of biomedical …, 2020 - Wiley Online Library
In single photon emission computed tomography (SPECT) imaging, the choice of a suitable
filter and its parameters for noise reduction purposes is a big challenge. Adverse effects on …

Estimation of optimized timely system matrix with improved image quality in iterative reconstruction algorithm: A simulation study

V Moslemi, V Erfanian, M Ashoor - Heliyon, 2020 - cell.com
The system matrix (SM) being a main part of statistical image reconstruction algorithms
establishes relationship between the object and projection space. The aim was to determine …

Feature point extraction based on contour detection and corner detection for weld seam

J Zeng, G Cao, W Li, J Sun, J Lv… - Journal of Physics …, 2018 - iopscience.iop.org
In an arc welding robot system with vision sensor, the extraction precision of the weld seam
position has an important effect on welding quality. However, due to disturbances such as …

[PDF][PDF] The Radon transform, its generalization and their applications in PET and SPECT medical imaging

N Protonotarios - 2020 - dspace.lib.ntua.gr
The celebrated Radon transform [1, 2] of a two-dimensional function is defined as the set of
all its line integrals [3]. There exists a certain generalization of the Radon transform, the so …