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A parallel PDE-based numerical algorithm for computing the Optical Flow in hybrid systems

delete2017-09-01
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PRE
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S
Salvatore Cuomo *
P
Pasquale De Michele
A
Ardelio Galletti
L
Livia Marcellino
DOI:10.1016/j.jocs.2017.03.011delete
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Abstract

Abstract

En 中文
In this paper, we propose a fine-to-coarse parallelization strategy in order to exploit, in a case study, a parallel hybrid architecture. We consider the Optical Flow numerical problem, modelled by partial differential equations, and implement a parallel multilevel software. Our hybrid software solution is a smart combination between codes on Graphic Processor Units (GPUs) and standard scientific parallel computing libraries on a cluster. Numerical experiments, on real satellite image sequences coming from a large dataset in a big data scenario, together with application profiling, highlight good results in terms of performance for the proposed approach. (C) 2017 Elsevier B.V. All rights reserved.
Keywords:
Optical Flow
Partial differential equations
High performance computing
Graphic processor units
Hybrid architectures
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Journal

Nature Computational Science cover
Nature Computational Science
IF:
18.3
Papers:
3.1K
Citations:
4.0K

Organization

P
Parthenope University Naples
Scholars:
2.5K
Papers: 2.9K
Citations: 10
U
University of Naples Federico II
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Papers: 3.6W
Citations: 51