نتایج جستجو برای: partial volume effect

تعداد نتایج: 2103220  

Journal: :International Journal of Biomedical Imaging 2006

Journal: :THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY 2015

2002
John A.D. Aston Vincent J. Cunningham Roger N. Gunn

The partial volume effect in Positron Emission Tomography (PET) is a problem for quantitative radiotracer studies. This effect results from the limited spatial resolution of the imaging device (a few mm’s). Two factors are involved; the spillover of radioactivity into neighbouring regions and the underlying tissue inhomogeneity of the particular region. Linear methods are currently used to corr...

2011
Jens Kerber Michael Wand Jens H. Krüger Hans-Peter Seidel

In this paper, we present an algorithm for detecting partial Euclidean symmetries in volume data. Our algorithm finds subsets in voxel data that map to each other approximately under translations, rotations, and reflections. We implement the search for partial symmetries efficiently and robustly using a feature-based approach: We first reduce the volume to salient line features and then create ...

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