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@ARTICLE{Gtz:845250,
author = {Götz, Markus and Cavallaro, Gabriele and Geraud, Thierry
and Book, Matthias and Riedel, Morris},
title = {{P}arallel {C}omputation of {C}omponent {T}rees on
{D}istributed {M}emory {M}achines},
journal = {IEEE transactions on parallel and distributed systems},
volume = {29},
number = {11},
issn = {1045-9219},
address = {New York, NY},
publisher = {IEEE},
reportid = {FZJ-2018-02533},
pages = {2582 -},
year = {2018},
abstract = {Component trees are region-based representations that
encode the inclusion relationship of the threshold sets of
an image. These representations are one of the most
promising strategies for the analysis and the interpretation
of spatial information of complex scenes as they allow the
simple and efficient implementation of connected filters.
This work proposes a new efficient hybrid algorithm for the
parallel computation of two particular component trees—the
max- and min-tree—in shared and distributed memory
environments. For the node-local computation a modified
version of the flooding-based algorithm of Salembier is
employed. A novel tuple-based merging scheme allows to merge
the acquired partial images into a globally correct view.
Using the proposed approach a speed-up of up to 44.88 using
128 processing cores on eight-bit gray-scale images could be
achieved. This is more than a five-fold increase over the
state-of-the-art shared-memory algorithm, while also
requiring only one-thirty-second of the memory.},
cin = {JSC},
ddc = {620},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {512 - Data-Intensive Science and Federated Computing
(POF3-512) / PhD no Grant - Doktorand ohne besondere
Förderung (PHD-NO-GRANT-20170405)},
pid = {G:(DE-HGF)POF3-512 / G:(DE-Juel1)PHD-NO-GRANT-20170405},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000447046200014},
doi = {10.1109/TPDS.2018.2829724},
url = {https://juser.fz-juelich.de/record/845250},
}