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Title:

Parallel MLEM on Multicore Architectures

Document type:
Proceedings Paper
Author(s):
Kustner, T; Weidendorfer, J; Schirmer, J; Klug, T; Trinitis, C; Ziegler, S
Abstract:
The efficient use of multicore architectures for sparse matrix-vector multiplication (SpMV) is currently an open challenge. One algorithm which makes use of SpMV is the maximum likelihood expectation maximization (MLEM) algorithm. When using MLEM for positron emission tomography (PET) image reconstruction, one requires a particularly large matrix. We present a new storage scheme for this type of matrix which cuts the memory requirements by half, compared to the widely-used compressed sparse row...     »
Journal title abbreviation:
LECT NOTE COMPUT SCI
Year:
2009
Journal volume:
5544
Pages contribution:
491-500
Language:
eng
Print-ISSN:
0302-9743
TUM Institution:
Klinik und Poliklinik für Nuklearmedizin
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